Interface IGProp<PROP_VALUE>

Method Details

• dispose

  void dispose()

  Disposes of the property, but doesn't remove it from a parent. Calling the method more than once will result in a no-operation.

  All children of this property, if any, will also be disposed of.

  This method calls the onPropDispose() method.

• isDisposed

  boolean isDisposed()

  Checks if the property is disposed.

  Returns:

  true if property is disposed of, false otherwise.

• getAppSessionGyro

  IAppSessionGyro getAppSessionGyro()

  Returns the Application Session Gyro instance of this virtualized property.

  To get the IAppSessionGyro instance from the current thread use IAppSessionGyro.getSessionInstance(), or IAppSessionGyro.getSessionInstance(SessionInfo) to get it from the session information instance.

  Do not abuse of this method as it requires a little look-up work.

  Returns:

  The Application Session Gyro if this instance is virtualized, null otherwise.

• getClientSessionGyro

  IClientSessionGyro getClientSessionGyro()

  Returns the Client Session Gyro instance of this virtualized property. This method only work for properties in a panel tree. Data connectors may sometimes also provide IClientSessionGyro support.

  To get the IClientSessionGyro instance from the current thread use IClientSessionGyro.getSessionInstance(), or IClientSessionGyro.getSessionInstance(SessionInfo) to get it from the session information instance.

  Do not abuse of this method as it requires a little look-up work.

  Returns:

  The Client Session Gyro if this instance is virtualized and is in a UIPanelBase (panels) tree (or for certain data connectors), null otherwise.

• getTreeLock

  Object getTreeLock()

  Gets the tree-lock object used when locking the property tree when structural changes are made or when creating/reading transactions that could potentially cause a structural change. Code synchronized on a single property should not synchronize on the tree, it must synchronize on the tree first, then the property itself.

  Returns:

  The lock object for the property tree.

• isPropClientCreated

  boolean isPropClientCreated()

  Checks if this property is created on the client or not.

  Returns:

  true for the client, false for server or editor.

• getVSReference

  VSReference getVSReference(Atom refAtom)

  Gets a VSReference instance from the container or any parent containers. The method is used by VSRelativeReference to look up the VSReference instance in order to resolve the relative path to the target property.

  This method needs to be overridden by subclasses of PropCnr that has a VSReference as property, e.g. the JSONInProp class in the Web Service plug-in.

  The default is to re-target the call to the parent container, and if the root, a folder or a file property is reached, null is returned.

  Parameters:

  refAtom - The property asking for the VSReference.

  Returns:

  The instance of the VSReference or null if unassigned.

• getPropBaseReference

  PropCnr getPropBaseReference()

  Gets a base property container reference instance from the container or any parent containers. The method is used by PropRelativeReference to look up the reference instance in order to resolve the relative path to the target property.

  This method needs to be overridden by subclasses of PropCnr that has a PropRelativeReference as property, e.g. the ScreenProp class in the Terminal Core plug-in.

  The default is to re-target the call to the parent container, and if the root, a folder or a file property is reached, null is returned.

  Returns:

  The instance of the PropCnr or null if unassigned.

• resolveRuntimeReferences

  void resolveRuntimeReferences(IRuntimeResolver resolver)

  Called before transactions are prepared for sending. This method allows creation of e.g. runtime references such as Styles or Panel references that adds a virtual instance for the Client.

  This call is propagated in the entire client tree.

  Parameters:

  resolver - The reference resolver.

• isPropExtended

  boolean isPropExtended()

  Checks the flag indicating this property is a property belonging to another container. This flag means the property is originating from an Extends container initially.

  Returns:

  true if the property originates from the Extends container, false otherwise.

• setPropExtendsPrivate

  boolean setPropExtendsPrivate(boolean on)

  Sets the flag indicating property is a Extends Private property in the container when this property belongs to the Extends Framework. Extends Private properties are not transported to the container that extends the original container.

  Parameters:

  on - flag indicating if it's Extends Private or not.

  Returns:

  true for changed, false for no change.

• isPropExtendsPrivate

  boolean isPropExtendsPrivate()

  Checks if this property is Extends Private in regards to the Extends Framework.

  Returns:

  true is the property has the Extends Private attribute.

• setPropExtendsFinal

  boolean setPropExtendsFinal(boolean on)

  Sets the flag indicating property is a Extends Final property in the container when this property belongs to the Extends Framework. Extends Final properties cannot be modified in containers that extends the original container, and to clarify, the Extends Final properties are set in the original container's properties or the container itself.

  Parameters:

  on - flag indicating if it's Extends Final or not.

  Returns:

  true for changed, false for no change.

• isPropExtendsFinal

  boolean isPropExtendsFinal()

  Checks if this property is Extends Final in regards to the Extends Framework.

  Returns:

  true is the property has the Extends Final attribute.

• isPropExtendsPrivateInRoot

  boolean isPropExtendsPrivateInRoot()

  Checks if the property is Extends Private from this property and up to, but not including the "isExtendsRoot()" property container in the parent chain of properties.

  If using this method to search for Extends Private in the Extends "Source Container", use the method that uses a container as parameter instead: isPropExtendsPrivateInRoot(PropCnr root).

  Returns:

  true if a property in the hierarchy between the extends root (excluded), and this property, the isPropExtendsPrivate() method would return true. It is false if no Extends Private exists, or if the root is not found.

• isPropExtendsPrivateInRoot

  boolean isPropExtendsPrivateInRoot(IPropCnr root)

  Checks if the property is Extends Private from this property and up to, but not including the "isExtendsRoot()" property container in the parent chain of properties.

  Parameters:

  root - The root to use if an alternate one is required, otherwise set to null for root look-up (note: this works only in the target container, not for the source container).

  Returns:

  true if a property in the hierarchy between the extends root (excluded), and this property, the isPropExtendsPrivate() method would return true. It is false if no Extends Private exists, or if the root is not found.

• getExtendsRootContainer

  PropCnr getExtendsRootContainer()

  Searches for an Extends container for a property. The parent tree is searched for a container with PropCnr.isExtendsRoot(), including this property (if it's a container).

  The search is ended with a "not found" null return code if a property file, folder or root is found (i.e. isPropFile(), isPropFolder() or isPropRoot() returns true).

  Returns:

  The Extends container root, or null if such a container is not found.

• getPropExtendsFlags

  int getPropExtendsFlags()

  Checks if this property extends another property, and if so gets the extends flags. This call is only interesting to do in the Designer where the Extends Framework is used. It requires a little processing, so do not call it too often if not required.

  Returns:

  A value with the flags in the bit-values below:

  • EXT_EXTENDED - Extended property.
  • EXT_PRIVATE - Private Extends.
  • EXT_FINAL - Final Extends.
  • EXT_OVERRIDES - Overrides a source property.
  • EXT_OVERRIDES_FINAL_ERR - Overrides a source property that is final = error.

  For containers, these two bit values also apply:

  • EXT_CONTAINER_EXTENDS - Container extends another container (only for containers)
  • EXT_CONTAINER_EXTENDS_VALID - Container extends another container, and reference is valid (only for containers).

• getValueClasses

  Class<?>[] getValueClasses()

  Gets the list of possible native Java classes that can be used to set a value using setPropertyValue, in order of importance. Note that loss of precision in data if e.g. an Float property accepts a Double. However, the setPropertyValue throws IllegalArgumentException if the range in invalid, e.g. conversion of a Integer to a Byte, and the value is not -127 to 128.

  Returns:

  The array of Java classes that can be accepted in the setPropertyValue method. The first type is the "native" or most preferred type. The array is at least one item in length and never null.

• renameProp

  boolean renameProp(Atom propertyAtom) throws PropException

  Renames this property. This is allowed if the property has no parent or the parent accepts the rename.

  Parameters:

  propertyAtom - The new atom name.

  Returns:

  true if name has changed, false otherwise.

  Throws:

  PropException - If rename causes duplicate names in parent.

  NullPointerException - If propertyAtom is null.

• getPropAtom

  Atom getPropAtom()

  Gets the atom used for the name of this property.

  Returns:

  Atom, the property atom.

• getPropName

  String getPropName()

  Gets the name of this property.

  Returns:

  String Name of the property.

• getModuleFolder

  FolderURIPropCnr getModuleFolder(String folderName)

  Gets the property container of specified type from the properties root.

  Parameters:

  folderName - The folder name.

  Returns:

  The folder in the project, null if not found.

• getModuleFolder

  FolderURIPropCnr getModuleFolder(IPluginDescriptor<?> descriptor)

  Gets the property container of specified type from the properties root.

  Parameters:

  descriptor - The folder descriptor.

  Returns:

  The folder in the project, null if not found.

• getFullPropName

  String getFullPropName()

  Gets the full name of this property, i.e. concatenated with the parent names separated with slashes ("/"), and in the Designer including the project name. The difference with this method and getReferencePropName() is that instances of FilePropCnr are omitted in the path in getReferencePropName(), but not in this method.

  Returns:

  A full property path string as "/path/propName" in the Server, "project:/path/propName" in the Designer.

• getFullPropNameDebug

  String getFullPropNameDebug()

  Gets the full name of this property, i.e. concatenated with the parent names separated with slashes ("/"), and in the Designer including the project name. The difference with this method and getReferencePropName() is that instances of FilePropCnr are omitted in the path in getReferencePropName(), but not in this method.

  This method is equal to the getFullPropName() method, without checks for root parent. This method is typically used for debugging and trace output.

  Returns:

  A full property path string as "/path/propName" in the Server, "project:/path/propName" in the Designer.

• getRelativePropName

  String getRelativePropName(IPropCnr container)

  Gets the relative name of this property to a container.

  When running with assertions, check is done that the container really contains this property. Without assertions, this results in a NullPointerException.

  Assertions exceptions are also thrown if the properties in the tree are disposed of.

  Parameters:

  container - The container to use as base name, null if root is required.

  Returns:

  The relative property name with a path to the container as "path/propName".

• isPropRoot

  boolean isPropRoot()

  Checks if this is a root property container. It is overridden by the root property.

  Returns:

  true for the root, false otherwise.

• isPropFolder

  boolean isPropFolder()

  Checks if this is a Folder property container. It is overridden by FolderPropCnr.

  Returns:

  true for FolderPropCnr, false otherwise.

• isPropFile

  boolean isPropFile()

  Checks if this is a File property container. It is overridden by FilePropCnr.

  Returns:

  true for FilePropCnr, false otherwise.

• getPropRootPropMgr

  PropMgr getPropRootPropMgr()

  Gets the Property Manager used for communication for the root container. If this is not the root container, the parent function is called upwards in tree.

  Returns:

  The Property Manager, or null when not attached to a root.

• isPropReferenceTreeValid

  boolean isPropReferenceTreeValid()

  Verifies if the tree is valid for reference creation. This method is typically overridden in a root property that has a Property Manager owner that in turn is checked for a particular configuration (e.g. Client-related references such as LabelForReference that does not create references when communicating).

  Returns:

  true if the root property manager is found, false otherwise.

• mapAliasToReference

  String mapAliasToReference(String aliasReference)

  Maps an alias reference name to a reference name.

  Alias reference names have the format "*alias:/path/propName".

  This method is overridden by the root container in a project.

  Parameters:

  aliasReference - The alias reference name.

  Returns:

  The default implementation is to return the same as the input aliasReference. If the aliasReference is not found, the same String as the input aliasReference is returned.

• mapReferenceToAlias

  String mapReferenceToAlias(String referenceName)

  Maps a reference name to an alias name.

  Alias names have the format "*alias:/path/propName".

  This method is overridden by the root container in a project.

  Parameters:

  referenceName - The reference name.

  Returns:

  The default implementation is to return the same as the input referenceName. If there is not alias for the project, the same String as the input referenceName is returned.

• mapReferenceToProjectRelative

  String mapReferenceToProjectRelative(String referenceName)

  Maps a reference name to project relative format, i.e. with a project name of "." instead of the project name (if it's the current project name).

  Parameters:

  referenceName - The reference name.

  Returns:

  A reference like ".:/path/propName" instead of "currentProject:/path/propName". If there is not alias for the project, the same String as the input referenceName is returned.

• getReferencePropName

  String getReferencePropName()

  Gets the reference property name, overridden when used in the Designer to skip the file storage property, and by the root property.

  Returns:

  A property reference string as "/path/propName" in the Server, "project:/path/propName" in the Designer.

• getPropFromReference

  GProp<?> getPropFromReference(String ref)

  Gets a property from a reference name. This can be called from any property in the property tree, and will direct the request to the root property.

  Parameters:

  ref - The reference string.

  Returns:

  The property with the reference in question, or null if not found.

• getPropFromPath

  GProp<?> getPropFromPath(String path)

  Finds a property in the tree of the requested name from a path specification, i.e. a string divided by "/" for child properties, e.g. "component/host/flag" would perhaps find the grand child "flag" property in the child "host" property located in the "component" property.

  The "part" as ".." specifies the parent property, if any, otherwise null is returned.

  The path may start with "project:/path" (for the Designer) or "/path", in which case the path is taken from the root.

  The path may be relative or absolute, with or without a project specification.

  Parameters:

  path - the path name of the property to locate in the tree.

  Returns:

  GProp the property or null for uninitialized container or the property with specified name is not found.

• isPropChildOf

  boolean isPropChildOf(IPropCnr parent)

  Checks if this property is child of a parent property. The parent tree is searched.

  Parameters:

  parent - The parent to check.

  Returns:

  true if this property has

• setParent

  void setParent(IPropCnr aParent)

  Sets the parent for this property. To remove the parent, set the parent to null.

  Parameters:

  aParent - The parent to set or null to clear the parent.

• getParent

  PropCnr getParent()

  Gets the parent of this property.

  Returns:

  PropCnr The parent or null for none.

• getParent

  <PROPCNR extends PropCnr> PROPCNR getParent(Class<PROPCNR> clazz)

  Gets the parent of this property with the requested type.

  Type Parameters:

  PROPCNR - The property container class requested.

  Parameters:

  clazz - The type.

  Returns:

  The parent of specified type, null for no parent or parent not of specified type.

• getRootParent

  PropCnr getRootParent()

  Gets the root container in the property tree.

  Returns:

  PropCnr The root parent or null for none.

• getAtomPath

  Atom[] getAtomPath(PropCnr stopAt)

  Gets the atom path of this property.

  Parameters:

  stopAt - Stop at this property container. If null the root is used.

  Returns:

  An array of Atom's.

• getPropPath

  PropCnr[] getPropPath(boolean includeThisPropCnr)

  Gets the parents to the root of this property.

  Parameters:

  includeThisPropCnr - If true and this property is an instance of PropCnr, it is added at the end of the array.

  Returns:

  The array of parents, first element being the root parent, last the direct parent.

• getPropPath

  PropCnr[] getPropPath(boolean includeThisPropCnr, IPropCnr stop)

  Gets the parents to the input property or the root of this property.

  Parameters:

  includeThisPropCnr - If true and this property is an instance of PropCnr, it is added at the end of the array.

  stop - The property container to stop at (it will be included as the first element in the array).

  Returns:

  The array of parents, first element being the input property or root parent, last the direct parent.

• getEnvironment

  EnvProps getEnvironment()

  Gets the environment properties.

  Returns:

  The EnvProps for the client/server environment or null if not found.

• getPropIndex

  int getPropIndex()

  Gets the index of this property in the parent container.

  Returns:

  int, the index of this property in the parent container, -1 if no parent or not found.

• moveProp

  boolean moveProp(PropCnr moveToContainer) throws PropException

  Moves this property container to another container, without changing the listeners. The event "PropMoveEvent" is fired. For a client connection, this results in two operations: one add and one remove event.

  This method is only intended for the designer, and the interface "com.iizigo.prop.IPropDesigner" must be implemented in both this container as well as the receiver.

  During the move, two "onPropParentChanged" calls are done to the property, first to set parent to null, then to the new parent.

  Note: This method is not thread-safe, but used in an "SWT-thread-safe'd" environment, in conjunction with Eclipse Data Structure Integrity within a project in a workspace, it is safe.

  Parameters:

  moveToContainer - The container to move this container to.

  Returns:

  true for success, false for failure (e.g. property not found in the parent). true is returned even if there is no change in the move operation.

  Throws:

  PropException - If the destination container cannot receive this container due to duplicate name or that it is read-only. It is also thrown if this container has no parent or the parent is read-only.

• moveProp

  boolean moveProp(PropCnr moveToContainer, Atom newName, Atom reference, boolean isAfter) throws PropException

  Moves this property container to another container, without changing the listeners. The event "PropMoveEvent" is fired. For a client connection, this results in two operations: one add and one remove event.

  This method is only intended for the designer, and the interface "com.iizigo.prop.IPropDesigner" must be implemented in both this container as well as the receiver.

  During the move, two "onPropParentChanged" calls are done to the property, first to set parent to null, then to the new parent.

  Note: This method is not thread-safe, but used in an "SWT-thread-safe'd" environment, in conjunction with Eclipse Data Structure Integrity within a project in a workspace, it is safe.

  Parameters:

  moveToContainer - The container to move this container to.

  newName - The new name of the property, null for same.

  reference - The reference atom where to place the moved property (before or after), null indicates added last.

  isAfter - Flag to move the property after reference (if non-null), otherwise it's before.

  Returns:

  true for success, false for failure (e.g. property not found in the parent). true is returned even if there is no change in the move operation.

  Throws:

  PropException - If the destination container cannot receive this container due to duplicate name or that it is read-only. It is also thrown if this container has no parent or the parent is read-only.

• moveProp

  boolean moveProp(PropCnr moveToContainer, Atom newName, int destinationIndex) throws PropException

  Moves this property container to another container, without changing the listeners. The event "PropMoveEvent" is fired. For a client connection, this results in two operations: one add and one remove event.

  This method is only intended for the designer, and the interface "com.iizigo.prop.IPropDesigner" must be implemented in both this container as well as the receiver.

  During the move, two "onPropParentChanged" calls are done to the property, first to set parent to null, then to the new parent.

  Note: This method is not thread-safe, but used in an "SWT-thread-safe'd" environment, in conjunction with Eclipse Data Structure Integrity within a project in a workspace, it is safe.

  Parameters:

  moveToContainer - The container to move this container to.

  newName - The new name of the property, null for same.

  destinationIndex - The reference atom where to place the moved property (before or after), null indicates added last.

  Returns:

  true for success, false for failure (e.g. property not found in the parent). true is returned even if there is no change in the move operation.

  Throws:

  PropException - If the destination container cannot receive this container due to duplicate name or that it is read-only. It is also thrown if this container has no parent or the parent is read-only.

• setChanged

  void setChanged()

  Forces setting of the change flag. If the flag was cleared prior to this call, the setChanged will propagate to the topmost parent (if any).

• hasChanged

  boolean hasChanged()

  Checks if the value has been changed since last time the other party was updated by a call to append or since last call to resetChanged.

  Returns:

  true if changed, false otherwise.

• setPropPrivate

  boolean setPropPrivate(boolean on)

  Sets the flag indicating property is private.

  Parameters:

  on - flag indicating if it's private or not.

  Returns:

  true for changed, false for no change.

• isPropPrivate

  boolean isPropPrivate()

  Checks if this property is private, i.e. is not sent to the remote party (server to client or vice versa).

  Returns:

  true if private, false otherwise.

• isPropCommunicating

  boolean isPropCommunicating()

  Checks if this property container is used with the communication framework.

  Returns:

  true if property is attached to a container that is communicating with a client, false otherwise.

• isPropVirtualized

  boolean isPropVirtualized()

  Checks if this property has been virtualized.

  Returns:

  true if the property is virtualized, false otherwise.

• setPropReadOnly

  boolean setPropReadOnly(boolean on)

  Sets the flag indicating property is read-only.

  Parameters:

  on - flag indicating if it's read-only or not.

  Returns:

  true for changed, false for no change.

• isPropReadOnly

  boolean isPropReadOnly()

  Checks if this property is read-only.

  Returns:

  true if read-only, false otherwise.

• setPropNullable

  boolean setPropNullable(boolean on)

  Sets the flag indicating property is nullable with setPropValue.

  Parameters:

  on - flag indicating if it's nullable or not.

  Returns:

  true for changed, false for no change.

• isPropNullable

  boolean isPropNullable()

  Checks if this property is nullable.

  Returns:

  true if property is nullable, false otherwise.

• getErrorsProp

  ErrorsProp getErrorsProp()

  Gets the error property from the parent. If not found, the property up to the root is searched and if found, that error property is returned. Several property containers, such as UIComp, override this method and creates the error property in its own container, and that error property is returned.

  Returns:

  The error property for this property or above in the property tree.

• addPropError

  boolean addPropError(IPropErrorItem item)

  Adds an error input to the property.

  Parameters:

  item - The error item.

  Returns:

  true for changed, false for no change.

• removePropError

  boolean removePropError(String id)

  Removes an error input from the property.

  Parameters:

  id - The error ID or null for "".

  Returns:

  true for changed, false for no change or error ID not found.

• getPropError

  PropError getPropError()

  Gets the property error instance.

  Returns:

  The error property instance null for no error.

• getPropError

  IPropErrorItem getPropError(String id)

  Gets the error input item with specified ID, for none specify empty string.

  Parameters:

  id - The ID for the error, can be empty string (null means default empty string).

  Returns:

  The error item for the ID, or null for not found.

• setPropError

  boolean setPropError(PropError error)

  Sets all or clears the errors for the property. If the error instance is non-null, a check if done if the error instance is empty, and if so, changed to null, causing it to have the same effect as to call setPropError(null).

  Parameters:

  error - The error property or null to clear the errors.

  Returns:

  true for changed, false for no change.

• hasPropError

  boolean hasPropError()

  Checks if this property has an error. If this property object has a registered errors, true is returned.

  Returns:

  true if an error is registered for the property.

• getPropErrorSeverity

  int getPropErrorSeverity()

  Gets the error severity of this property.

  Returns:

  -1 for none, otherwise IPropErrorItem.INFO=0, WARNING=1, ERROR=2.

• hasPropTreeError

  boolean hasPropTreeError(boolean excludeExtends)

  Checks if any property in the tree below this property has an error.

  Parameters:

  excludeExtends - Flag indicating the properties that originates from the Extends Framework should be excluded from the search.

  Returns:

  true if any error is present in any property or their values.

• getPropTreeErrorSeverity

  int getPropTreeErrorSeverity(boolean excludeExtends)

  Gets the error severity of this property or any property below.

  Parameters:

  excludeExtends - Flag indicating the properties that originates from the Extends Framework should be excluded from the search.

  Returns:

  -1 for none, otherwise IPropErrorItem.INFO=0, WARNING=1, ERROR=2.

• getErroredProps

  void getErroredProps(ArrayList<GProp<?>> list, boolean excludeExtends)

  Retrieves the properties containing errors.

  Parameters:

  list - The list that will be filled in with the errored properties.

  excludeExtends - Flag indicating the properties that originates from the Extends Framework should be excluded from the search.

• getErroredPropItems

  void getErroredPropItems(ArrayList<PropErrorItemOrigin> list, boolean excludeExtends)

  Retrieves the list of error items for this property and its children (if this property is a container).

  Parameters:

  list - The list that will be filled with error items.

  excludeExtends - Flag indicating the properties that originates from the Extends Framework should be excluded from the search.

• isPropCreateRequired

  boolean isPropCreateRequired()

  Checks if this property requires a "create transaction" when sent to the other party (server to client or vice versa).

  Returns:

  true if the property needs creation for transactions, false otherwise.

• setPrivateChangeEventProp

  boolean setPrivateChangeEventProp(boolean on)

  Sets the flag indicating this property uses a "private" change event, i.e. doesn't inform the parent when value changes.

  Parameters:

  on - flag indicates this is set (true) or cleared (false).

  Returns:

  true for changed, false for no change.

• hasPrivateChangeEventProp

  boolean hasPrivateChangeEventProp()

  Checks the flag indicating this property uses a "private" change event, i.e. doesn't inform the parent when value changes.

  Returns:

  true if the change event is "private", false otherwise.

• setConstraints

  Object setConstraints(String constraints, Element element) throws PropException

  Sets the constraints for the property.

  This method must be overridden by subclasses in order to load the constraints properly if the constraints-string is not sufficient, i.e. that additional settings must be loaded from the XML Element.

  Parameters:

  constraints - The constraints string from the properties definition.

  element - The Element that loads the property class from the properties definition. Note that Element may be null if the constructor isn't called from the PropertyFactory.

  Returns:

  The constraints object for reuse by the PropertyFactory with a subsequent setConstraints(Object) call instead of to this method. This method always returns null and must be overridden by subclasses.

  Throws:

  PropException - For errors in the constraints definitions.

• setConstraints

  void setConstraints(Object constraints, String prevConstraints, Element prevElement) throws PropException

  Sets the constraints for the property previously returned from the same constraints call to setConstraints(String,Element) with the same String and Element as this instance would require.

  This method must be overridden by subclasses in order to load the constraints properly if the constraints-string is not sufficient, i.e. that additional settings must be loaded from the XML Element.

  Parameters:

  constraints - The constraints Object from the properties definition.

  prevConstraints - The previous constraints string from the properties definition.

  prevElement - The previous Element that loads the property class from the properties definition.

  Throws:

  PropException - For errors in the constraints definitions.

• getConstraints

  String getConstraints()

  Gets the constraints string for this property.

  This method must be overridden by subclasses in order to return something of interest, because this method by default returns null.

  Returns:

  The constraints string used to in setConstraints to initiate the constraints for this property.

• setPropValue

  boolean setPropValue(Object newValue) throws PropException

  Sets a new value for this property. If any listener is present and the value has changed compare to the last value, the listener is informed.

  Parameters:

  newValue - the new value.

  Returns:

  boolean true for value has changed, false for same value as current value.

  Throws:

  PropException - When the new value doesn't validate correctly.

  PropTypeException - If the property is read-only.

• setPropValue

  boolean setPropValue(Object newValue, IGProp<?> trigger) throws PropException

  Sets a new value for this property. If any listener is present and the value has changed compare to the last value, the listener is informed.

  Parameters:

  newValue - The new value.

  trigger - The trigger property, or null for none.

  Returns:

  boolean true for value has changed, false for same value as current value.

  Throws:

  PropException - When the new value doesn't validate correctly.

  PropTypeException - If the property is read-only.

• validateProp

  void validateProp(Object newValue) throws PropException

  Validates the value to set by first calling validateType, then validateValue.

  Note: When this method is called, synchronization is done at the property itself, so no synchronization on the tree should be done. This method calls validatePropertyType and validatePropertyValue in the property-synchronized code, so these methods should not synchronize the tree either.

  Parameters:

  newValue - The new value to set.

  Throws:

  PropException - when the new value doesn't validate correctly.

• validatePropType

  void validatePropType(Object newValue) throws PropTypeException

  Validates the newValue against the property object type. Subclasses must override this method to perform optional value type validation.

  Note: When this method is called, synchronization is done at the property itself, so no synchronization on the tree should be done.

  Parameters:

  newValue - The new value to set.

  Throws:

  PropTypeException - when the new value isn't of the correct class.

• validatePropValue

  void validatePropValue(Object newValue) throws PropException

  Validates the value to set. Subclasses can override this method to perform optional value validation. No validation is performed in this method.

  Note: When this method is called, synchronization is done at the property itself, so no synchronization on the tree should be done.

  Parameters:

  newValue - The new value to set.

  Throws:

  PropException - when the new value doesn't validate correctly.

• getPropValue

  PROP_VALUE getPropValue()

  Gets the current value set, null for an uninitialized value.

  Returns:

  Object the value or null for uninitialized value.

• getPropValue

  Object getPropValue(Class<?> requestedType) throws IllegalArgumentException, Exception

  Gets the property value in another class form than the "native" one. This method tries conversion of a "native" property value into another class type. This method is used when filling in a POJO variable (Plain Old Java Object Field) from a "native" property value.

  Subclasses overrides the method getPropertyValue0 in order to provide the appropriate conversion.

  Parameters:

  requestedType - The requested class type of the property value, using appropriate conversion.

  Returns:

  The property value in the requested class, after conversion.

  Throws:

  IllegalArgumentException - If the class is not supported by the property for conversion.

  Exception - Other exceptions that could occur.

• addPropListener

  void addPropListener(EventListener l)

  Adds a listener for the property.

  Parameters:

  l - The listener to add.

• removePropListener

  void removePropListener(EventListener l)

  Removes a listener for the property.

  Parameters:

  l - The listener to remove.

• onEvent

  void onEvent(GEvent event)

  Called when a property event is send to this property.

  If this property is disposed, no processing will take place.

  This method checks the event's Operations to perform and handles it accordingly.

  If, at any time, the event is canceled, the processing is stopped.

  Parameters:

  event - The property event.

• onEventSelf

  void onEventSelf(GEvent event)

  Called when a property event is send to this property.

  A subclass can override this method to perform appropriate processing and is not required to call super.onEventSelf(e).

  Parameters:

  event - The property event.

• onRemoteEvent

  void onRemoteEvent(RemoteEvent event)

  Called when a remote property event should be processed by this property.

  A subclass can override this method to perform appropriate processing and is not required to call super.onRemoteEvent(e).

  The onRemoteEvent is NOT called when in a proxied property container, but rather the normal onEventSelf method.

  Parameters:

  event - The property event.

• triggerRemoteEvent

  void triggerRemoteEvent(int localID)

  Triggers a remote event for execution at the remote party onRemoteEvent() method of this remote property instance.

  Parameters:

  localID - The property-local event ID.

• triggerRemoteEvent

  void triggerRemoteEvent(int localID, PropCnr params)

  Triggers a remote event for execution at the remote party onRemoteEvent() method of this remote property instance.

  Parameters:

  localID - The local event ID received on the other end.

  params - A new (unnamed) property container, or null for none.

• initializeGProp

  void initializeGProp(Element element) throws PropException

  Called to initialize the generic property from an Element.

  This method initializes the generic property and then calls the initializeProperty(AtomManager atomManager,Element element).

  The attributes "readOnly", "private" and "informParent" are read from the Element.

  Parameters:

  element - The Element.

  Throws:

  PropException - when the initialization fails.

• fromElementString

  Object fromElementString(String string) throws PropException

  Called from the initializeProperty(Element element) method once the element String is retrieved from the "value" attribute of the element. Override this method to provide the appropriate String to Object conversion.

  The default implementation returns the String passed as the parameter.

  Parameters:

  string - the String value of the object from the String value attribute.

  Returns:

  the Object in "native" property value form of the string value.

  Throws:

  PropException - when the conversion fails.

• onPropTreeInitialized

  void onPropTreeInitialized() throws IOException, PropException

  Called when the property has initialized from the Element when streamed from an XML file, has had all (if any) children elements and nodes added as properties and that the property has been added into it's parent.

  This method does nothing and may be overridden by any subclasses to perform custom processing. The PropertyContainer calls all its children with this method in order to inform the tree.

  The ExtendablePropertyContainer overrides this method to load all extended containers.

  Throws:

  IOException - For file errors.

  PropException - When there is an initialization problem.

• initializeGElement

  void initializeGElement(Element element)

  Called when the XML file for the property tree is serialized from properties. The property should fill attributes and nodes with appropriate information.

  This method initializes the generic property and then calls the initializeElement(Element element).

  The attributes "readOnly", "private" and "informParent" are set for the Element.

  Parameters:

  element - The element.

• toElementString

  String toElementString(Object value)

  Called from the initializeElement(Element element) method. Override this method to provide the appropriate Object to String conversion.

  The default implementation returns the Object value.toString() return code. If the value is null, null is returned.

  Parameters:

  value - the value in the object to convert to a string.

  Returns:

  the string corresponding to the object value, or null for a null value.

• toNativeValue

  Object toNativeValue(Object value) throws NullPointerException, Exception

  Tries conversion of possibly accepted properties values using the setPropertyValue method into the most preferred property value type. If the input value already is of the preferred type, the same object is returned.

  Subclasses overrides the method toNativeValue0 in order to provide the appropriate conversion.

  Parameters:

  value - the input value to convert to native value.

  Returns:

  The converted input value in the preferred property value object type.

  Throws:

  NullPointerException - If the input Object value is null.

  Exception - Other exceptions.

• hasCircularReferencesError

  boolean hasCircularReferencesError()

  Checks if there is any presence of a circular reference error registered for the property made by e.g. the verify(PropVerification) method.

  Returns:

  true if there is at least one circular reference error, or a crossover to a circular reference, false otherwise.

• verify

  boolean verify(PropVerification verification)

  Verifies this property. The check performed is the extension of classes and that no circular reference is present.

  Parameters:

  verification - The property verification class.

  Returns:

  true if verification should proceed, false if disposed of and verification should not take place.

• equals

  boolean equals(Object o, int how)

  Checks for equality.

  Parameters:

  o - The other property to compare with.

  how - Flags EQC_* values for equal checking.

  Returns:

  Both atom and value are equal.

• list

  void list()

  Prints a listing of this property to the standard system output stream System.out.

• list

  void list(PrintStream out)

  Prints a listing of this property to the specified output stream.

  Parameters:

  out - a print stream.

• list

  void list(PrintStream out, int indent)

  Prints out a list, starting at the specified indentation, to the specified print stream.

  Parameters:

  out - a print stream.

  indent - number of spaces to indent.

• list

  void list(PrintWriter out)

  Prints a listing to the specified print writer.

  Parameters:

  out - The print writer to print to.

• list

  void list(PrintWriter out, int indent)

  Prints out a list, starting at the specified indentation, to the specified print writer.

  Parameters:

  out - The print writer to print to.

  indent - The number of spaces to indent.

• finest

  void finest(String msg)

  Logs a finest event.

  Parameters:

  msg - The message.

• finest

  void finest(String msg, Object... params)

  Logs a finest event.

  Parameters:

  msg - The message.

  params - Parameters.

• finer

  void finer(String msg)

  Logs a finer event.

  Parameters:

  msg - The message.

• finer

  void finer(String msg, Object... params)

  Logs a finer event.

  Parameters:

  msg - The message.

  params - Parameters.

• fine

  void fine(String msg)

  Logs a fine event.

  Parameters:

  msg - The message.

• fine

  void fine(String msg, Object... params)

  Logs a fine event.

  Parameters:

  msg - The message.

  params - Parameters.

• info

  void info(String msg)

  Logs an informational event.

  Parameters:

  msg - The message.

• info

  void info(String msg, Object... params)

  Logs an informational event.

  Parameters:

  msg - The message.

  params - Parameters.

• warning

  void warning(String msg)

  Logs a warning event.

  Parameters:

  msg - The message.

• warning

  void warning(String msg, Object... params)

  Logs a warning event.

  Parameters:

  msg - The message.

  params - Parameters.

• warning

  void warning(String msg, Throwable exception)

  Logs a warning event.

  Parameters:

  msg - The message.

  exception - The exception.

• severe

  void severe(String msg)

  Logs a severe event.

  Parameters:

  msg - The message.

• severe

  void severe(String msg, Throwable exception)

  Logs a severe event.

  Parameters:

  msg - The message.

  exception - The exception.

• severe

  void severe(String msg, Object... params)

  Logs a severe event.

  Parameters:

  msg - The message.

  params - Parameters.