| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| package org.apache.myfaces.tobago.el; |
| |
| import javax.el.ELContext; |
| import javax.el.ELException; |
| import javax.el.MethodExpression; |
| import javax.el.MethodInfo; |
| import javax.faces.component.StateHolder; |
| import javax.faces.context.FacesContext; |
| |
| public class ConstantMethodExpression extends MethodExpression implements StateHolder { |
| |
| private String outcome; |
| |
| private boolean transientFlag; |
| |
| public ConstantMethodExpression() { |
| } |
| |
| public ConstantMethodExpression(final String outcome) { |
| this.outcome = outcome; |
| } |
| |
| @Override |
| public MethodInfo getMethodInfo(final ELContext context) |
| throws NullPointerException, ELException { |
| return null; |
| } |
| |
| @Override |
| public Object invoke(final ELContext context, final Object[] params) |
| throws NullPointerException, ELException { |
| return outcome; |
| } |
| |
| @Override |
| public boolean equals(final Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| |
| final ConstantMethodExpression that = (ConstantMethodExpression) o; |
| |
| return !(outcome != null ? !outcome.equals(that.outcome) : that.outcome != null); |
| |
| } |
| |
| @Override |
| public int hashCode() { |
| return outcome.hashCode(); |
| } |
| |
| @Override |
| public String getExpressionString() { |
| return outcome; |
| } |
| |
| @Override |
| public boolean isLiteralText() { |
| return true; |
| } |
| |
| @Override |
| public Object saveState(final FacesContext context) { |
| return outcome; |
| } |
| |
| @Override |
| public void restoreState(final FacesContext context, final Object state) { |
| this.outcome = (String) state; |
| } |
| |
| @Override |
| public void setTransient(final boolean transientFlagParameter) { |
| this.transientFlag = transientFlag; |
| } |
| |
| @Override |
| public boolean isTransient() { |
| return transientFlag; |
| } |
| } |