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	/*
	* Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	/*
	* This source code is provided to illustrate the usage of a given feature
	* or technique and has been deliberately simplified. Additional steps
	* required for a production-quality application, such as security checks,
	* input validation and proper error handling, might not be present in
	* this sample code.
	*/


	package com.sun.tools.example.debug.bdi;

	import com.sun.jdi.*;

	class SourceNameReferenceTypeSpec implements ReferenceTypeSpec {
	final String sourceName;
	final int linenumber;

	SourceNameReferenceTypeSpec(String sourceName, int linenumber) {
	this.sourceName = sourceName;
	this.linenumber = linenumber;
	}

	/**
	* Does the specified ReferenceType match this spec.
	*/
	@Override
	public boolean matches(ReferenceType refType) {
	try {
	if (refType.sourceName().equals(sourceName)) {
	try {
	refType.locationsOfLine(linenumber);
	// if we don't throw an exception then it was found
	return true;
	} catch(AbsentInformationException exc) {
	} catch(ObjectCollectedException exc) {
	}
	}
	} catch(AbsentInformationException exc) {
	// for sourceName(), fall through
	}
	return false;
	}

	@Override
	public int hashCode() {
	return sourceName.hashCode() + linenumber;
	}

	@Override
	public boolean equals(Object obj) {
	if (obj instanceof SourceNameReferenceTypeSpec) {
	SourceNameReferenceTypeSpec spec = (SourceNameReferenceTypeSpec)obj;

	return sourceName.equals(spec.sourceName) &&
	(linenumber == spec.linenumber);
	} else {
	return false;
	}
	}

	@Override
	public String toString() {
	return sourceName + "@" + linenumber;
	}
	}

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