| package org.eclipse.jface.text.contentassist; | |
| /* | |
| * (c) Copyright IBM Corp. 2000, 2001. | |
| * All Rights Reserved. | |
| */ | |
| import org.eclipse.jface.text.ITextViewer; | |
| /** | |
| * A context information validator is used to determine if | |
| * a displayed context information is still valid or should | |
| * be dismissed. The interface can be implemented by clients. | |
| * Clients may use <code>ContextInformationValidator</code> | |
| * as their implementer of this interface. | |
| */ | |
| public interface IContextInformationValidator { | |
| /** | |
| * Installs this validator for the given context information. | |
| * | |
| * @param info the context information which this validator should check | |
| * @param viewer the text viewer on which the information is presented | |
| * @param documentPosition the document position for which the information has been computed | |
| */ | |
| void install(IContextInformation info, ITextViewer viewer, int documentPosition); | |
| /** | |
| * Returns whether the information this validator is installed on is still valid | |
| * at the given document position. | |
| * | |
| * @param documentPosition the current position within the document | |
| * @return <code>true</code> if the information also valid at the given document position | |
| */ | |
| boolean isContextInformationValid(int documentPosition); | |
| } |