Package org.eclipse.jface.text.contentassist

Class ContextInformationValidator

java.lang.Object

org.eclipse.jface.text.contentassist.ContextInformationValidator

All Implemented Interfaces:

IContextInformationValidator

public final class ContextInformationValidator
extends Object
implements IContextInformationValidator

A default 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

Constructors

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

Method Summary

Modifier and Type	Method	Description
void	install(IContextInformation contextInformation, ITextViewer viewer, int offset)	Installs this validator for the given context information.
boolean	isContextInformationValid(int offset)	Returns whether the information this validator is installed on is still valid at the given document position.

Methods inherited from class java.lang.Object

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

Constructor Details

ContextInformationValidator

public ContextInformationValidator(IContentAssistProcessor processor)

Creates 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 Details

install

public void install(IContextInformation contextInformation,
 ITextViewer viewer,
 int offset)

Description copied from interface: IContextInformationValidator

Installs 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 text viewer on which the information is presented

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

isContextInformationValid

public boolean isContextInformationValid(int offset)

Description copied from interface: IContextInformationValidator

Returns whether the information this validator is installed on is still valid at the given document position.

Specified by:

isContextInformationValid in interface IContextInformationValidator

Parameters:

offset - the current offset within the document

Returns:

true if the information also valid at the given document position