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/*******************************************************************************
* 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}.
* <p>
* As {@link org.eclipse.jface.text.Position},<code>TypedPosition</code> can
* not be used as key in hash tables as it overrides <code>equals</code> and
* <code>hashCode</code> 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(); //$NON-NLS-1$
}
}
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