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Help (NetBeans JavaHelp Integration API) - NetBeans API Javadoc 5.0.0

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org.netbeans.api.javahelp
Class Help

java.lang.Object
  org.netbeans.api.javahelp.Help

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public abstract class Help

extends Object

An implementation of the JavaHelp system. Get the concrete instance using lookup.

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Constructor Summary
protected	Help()           constructor for subclasses

 

Method Summary
abstract  void	addChangeListener(ChangeListener l)           Add a change listener for when help sets change.
abstract  Boolean	isValidID(String id, boolean force)           Test whether a given ID is valid in some known helpset.
abstract  void	removeChangeListener(ChangeListener l)           Remove a change listener.
void	showHelp(HelpCtx ctx)           Shows help.
abstract  void	showHelp(HelpCtx ctx, boolean showmaster)           Shows help.

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

Help

protected Help()

constructor for subclasses

Method Detail

isValidID

public abstract Boolean isValidID(String id,
                                  boolean force)

Test whether a given ID is valid in some known helpset. In lazy mode, should be a fast operation; if in doubt say you do not know.

Parameters:

id - the ID to check for validity

force - if false, do not do too much work (be lazy) and if necessary return null; if true, must return non-null (meaning the call may block loading helpsets)

Returns:

whether it is valid, if this is known; else may be null (only permitted when force is false)

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showHelp

public void showHelp(HelpCtx ctx)

Shows help.

Parameters:

ctx - help context

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showHelp

public abstract void showHelp(HelpCtx ctx,
                              boolean showmaster)

Shows help.

Parameters:

ctx - help context

showmaster - whether to force the master helpset to be shown (full navigators) even though the supplied ID only applies to one subhelpset

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addChangeListener

public abstract void addChangeListener(ChangeListener l)

Add a change listener for when help sets change.

Parameters:

l - the listener to add

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removeChangeListener

public abstract void removeChangeListener(ChangeListener l)

Remove a change listener.

Parameters:

l - the listener to remove

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