/******************************************************************************* * Copyright (c) 2000, 2008 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.jface.text; /** * Convenience class for positions that have a type, similar to * {@link org.eclipse.jface.text.ITypedRegion}. *
* As {@link org.eclipse.jface.text.Position},TypedPosition
can
* not be used as key in hash tables as it overrides equals
and
* hashCode
as it would be a value object.
*/
public class TypedPosition extends Position {
/** The type of the region described by this position */
private String fType;
/**
* Creates a position along the given specification.
*
* @param offset the offset of this position
* @param length the length of this position
* @param type the content type of this position
*/
public TypedPosition(int offset, int length, String type) {
super(offset, length);
fType= type;
}
/**
* Creates a position based on the typed region.
*
* @param region the typed region
*/
public TypedPosition(ITypedRegion region) {
super(region.getOffset(), region.getLength());
fType= region.getType();
}
/**
* Returns the content type of the region.
*
* @return the content type of the region
*/
public String getType() {
return fType;
}
@Override
public boolean equals(Object o) {
if (o instanceof TypedPosition) {
if (super.equals(o)) {
TypedPosition p= (TypedPosition) o;
return (fType == null && p.getType() == null) || fType.equals(p.getType());
}
}
return false;
}
@Override
public int hashCode() {
int type= fType == null ? 0 : fType.hashCode();
return super.hashCode() | type;
}
@Override
public String toString() {
return fType + " - " + super.toString(); //$NON-NLS-1$
}
}