com.ibm.lpex.alef.contentassist
Class ContextInformationValidator

java.lang.Object
  com.ibm.lpex.alef.contentassist.ContextInformationValidator

All Implemented Interfaces:

IContextInformationValidator

public final class ContextInformationValidator
extends Object
implements IContextInformationValidator

A default LPEX implementation of the IContextInfomationValidator interface. This implementation determines whether the information is valid by asking the content-assist processor for all context information objects for the current position. If the currently displayed information is in the result set, the context information is considered valid.

Constructor Summary

ContextInformationValidator(IContentAssistProcessor processor)
Create a new context information validator which is ready to be installed on a particular context information.

Method Summary

void	install(IContextInformation contextInformation, ITextViewer viewer, LpexDocumentLocation location) Install this validator for the given context information.
boolean	isContextInformationValid(LpexDocumentLocation location) Return whether the information that this validator is installed on, is still valid at the current document location.

Methods inherited from class java.lang.Object

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

Constructor Detail

ContextInformationValidator

public ContextInformationValidator(IContentAssistProcessor processor)

Create a new context information validator which is ready to be installed on a particular context information.

Parameters:

processor - the processor to be used for validation

Method Detail

install

public void install(IContextInformation contextInformation,
                    ITextViewer viewer,
                    LpexDocumentLocation location)

Install this validator for the given context information.

Specified by:

install in interface IContextInformationValidator

Parameters:

contextInformation - the context information which this validator should check

viewer - the LpexTextViewer on which the information is presented

location - the document location for which the information has been computed

See Also:

IContextInformationValidator.install(IContextInformation,ITextViewer,LpexDocumentLocation)

isContextInformationValid

public boolean isContextInformationValid(LpexDocumentLocation location)

Return whether the information that this validator is installed on, is still valid at the current document location.

Specified by:

isContextInformationValid in interface IContextInformationValidator

Parameters:

location - the current document location

Returns:

true if the information is also valid at the given document location

See Also:

IContextInformationValidator.isContextInformationValid(LpexDocumentLocation)