Copyright (c) 2000, 2008 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2000, 2008 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jface.text;


Convenience class for positions that have a type, similar to ITypedRegion. 
 As Position,TypedPosition can
not be used as key in hash tables as it overrides equals and
hashCode as it would be a value object.
/**
 * 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 /** The type of the region described by this position */
	private String fType;

	
Creates a position along the given specification.
Params:
offset – the offset of this position
length – the length of this position
type – the content type of this position/**
	 * 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.
Params:
region – the typed region/**
	 * 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.
Returns:
the content type of the region/**
	 * 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(); //$NON-NLS-1$
	}
}