org.eclipse.xtext.ui.editor.contentassist
Class ProposalConflictHelper

java.lang.Object
  org.eclipse.xtext.ui.editor.contentassist.ProposalConflictHelper

All Implemented Interfaces:

IProposalConflictHelper

Direct Known Subclasses:

AntlrProposalConflictHelper

public abstract class ProposalConflictHelper
extends java.lang.Object
implements IProposalConflictHelper

Abstract base implementation of the IProposalConflictHelper that deals with the node model to extract the previous sibling of the input source.

Implementors have to provide the semantics of existsConflict(String, String, ContentAssistContext). They should consider to extend the AntlrProposalConflictHelper.

Author:

Sebastian Zarnekow - Initial contribution and API

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.xtext.ui.editor.contentassist.IProposalConflictHelper

IProposalConflictHelper.NullHelper

Constructor Summary

ProposalConflictHelper()

Method Summary

boolean	existsConflict(INode lastCompleteNode, int offset, java.lang.String proposal, ContentAssistContext context)
boolean	existsConflict(java.lang.String proposal, ContentAssistContext context) Returns false if the proposal would corrupt the previous input.
abstract boolean	existsConflict(java.lang.String lastCompleteText, java.lang.String proposal, ContentAssistContext context) Returns false if the proposal would corrupt the previous input.

Methods inherited from class java.lang.Object

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

Constructor Detail

ProposalConflictHelper

public ProposalConflictHelper()

Method Detail

existsConflict

public boolean existsConflict(java.lang.String proposal,
                              ContentAssistContext context)

Description copied from interface: IProposalConflictHelper

Returns false if the proposal would corrupt the previous input.

Specified by:

existsConflict in interface IProposalConflictHelper

Parameters:

proposal - a possible proposal string. Is never null.

context - the current content assist context. Is never null.

Returns:

false if the proposal would corrupt the current input.

existsConflict

public abstract boolean existsConflict(java.lang.String lastCompleteText,
                                       java.lang.String proposal,
                                       ContentAssistContext context)

Returns false if the proposal would corrupt the previous input.

Parameters:

lastCompleteText - the previous sibling in the input source. Is never null but may be empty. However, the implementation of existsConflict(INode, int, String, ContentAssistContext) will not pass empty strings by default but return false instead.

proposal - a possible proposal string. Is never null.

context - the current content assist context. Is never null.

Returns:

false if the proposal would corrupt the current input.

existsConflict

public boolean existsConflict(INode lastCompleteNode,
                              int offset,
                              java.lang.String proposal,
                              ContentAssistContext context)