- /*
- * Copyright 1999-2004 The Apache Software Foundation.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- /*
- * $Id: Equals.java,v 1.9 2004/02/17 04:35:12 minchau Exp $
- */
- package com.sun.org.apache.xpath.internal.operations;
-
- import com.sun.org.apache.xpath.internal.XPathContext;
- import com.sun.org.apache.xpath.internal.objects.XBoolean;
- import com.sun.org.apache.xpath.internal.objects.XObject;
-
- /**
- * The '=' operation expression executer.
- */
- public class Equals extends Operation
- {
-
- /**
- * Apply the operation to two operands, and return the result.
- *
- *
- * @param left non-null reference to the evaluated left operand.
- * @param right non-null reference to the evaluated right operand.
- *
- * @return non-null reference to the XObject that represents the result of the operation.
- *
- * @throws javax.xml.transform.TransformerException
- */
- public XObject operate(XObject left, XObject right)
- throws javax.xml.transform.TransformerException
- {
- return left.equals(right) ? XBoolean.S_TRUE : XBoolean.S_FALSE;
- }
-
- /**
- * Execute a binary operation by calling execute on each of the operands,
- * and then calling the operate method on the derived class.
- *
- *
- * @param xctxt The runtime execution context.
- *
- * @return The XObject result of the operation.
- *
- * @throws javax.xml.transform.TransformerException
- */
- public boolean bool(XPathContext xctxt)
- throws javax.xml.transform.TransformerException
- {
- XObject left = m_left.execute(xctxt, true);
- XObject right = m_right.execute(xctxt, true);
-
- boolean result = left.equals(right) ? true : false;
- left.detach();
- right.detach();
- return result;
- }
-
- }