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javax.ide.command
Class Controller  

java.lang.Object
  javax.ide.command.Controller

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public final class Controller

extends java.lang.Object

Controllers encapulate extension defined UpdateHandlers and Controller.NullInvokeHandlers. Generally, javax.ide.view.Views use controllers to check whether a context sensitive command can be executed given the current context, and to do the actual execution of that command.

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Nested Class Summary
private static class	Controller.NullInvokeHandler
private static class	Controller.NullUpdateHandler

 

Field Summary
private  javax.ide.util.MetaClass	_invokeClass
private  InvokeHandler	_invokeHandler
private  boolean	_isContextSensitive
private static InvokeHandler	_nullInvokeHandler
private static UpdateHandler	_nullUpdateHandler
private  javax.ide.util.MetaClass	_updateClass
private  UpdateHandler	_updateHandler

 

Constructor Summary

Controller(InvokeHandler invokeHandler, UpdateHandler updateHandler)           Constructs a controller object.

Controller(javax.ide.util.MetaClass invokeHandlerClass, javax.ide.util.MetaClass updateHandlerClass)           Constructs a controller object, deferring class loading and instantiation of its invoke and update handler objects until needed.

 

Method Summary
InvokeHandler	getInvokeHandler()           Get the invoke handler for this controller.
UpdateHandler	getUpdateHandler()           Get the update handler for this controller.
boolean	isContextSensitive()           Get whether this controller is context sensitive.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

_updateClass

private javax.ide.util.MetaClass _updateClass

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_invokeClass

private javax.ide.util.MetaClass _invokeClass

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_isContextSensitive

private final boolean _isContextSensitive

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_updateHandler

private UpdateHandler _updateHandler

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_invokeHandler

private InvokeHandler _invokeHandler

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_nullUpdateHandler

private static UpdateHandler _nullUpdateHandler

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_nullInvokeHandler

private static InvokeHandler _nullInvokeHandler

Constructor Detail

Controller

public Controller(javax.ide.util.MetaClass invokeHandlerClass,
                  javax.ide.util.MetaClass updateHandlerClass)

Constructs a controller object, deferring class loading and instantiation of its invoke and update handler objects until needed. Generally, this is only used by IDE implementations when loading controllers from the manifest file.

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Controller

public Controller(InvokeHandler invokeHandler,
                  UpdateHandler updateHandler)

Constructs a controller object.

Method Detail

getInvokeHandler

public InvokeHandler getInvokeHandler()

Get the invoke handler for this controller.

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getUpdateHandler

public UpdateHandler getUpdateHandler()

Get the update handler for this controller.

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isContextSensitive

public boolean isContextSensitive()

Get whether this controller is context sensitive. A context sensitive controller has an associated UpdateHandler that adjusts the action based on the context.

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