Coverage report

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org.apache.commons.jelly.expression.ConstantExpression

55%

100%

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     /*

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      * Copyright 2002,2004 The Apache Software Foundation.

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      *

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      * Licensed under the Apache License, Version 2.0 (the "License");

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      * you may not use this file except in compliance with the License.

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      * You may obtain a copy of the License at

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      *

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      *      http://www.apache.org/licenses/LICENSE-2.0

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      *

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      * Unless required by applicable law or agreed to in writing, software

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      * distributed under the License is distributed on an "AS IS" BASIS,

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      * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

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      * See the License for the specific language governing permissions and

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      * limitations under the License.

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      */

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     package org.apache.commons.jelly.expression;

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     import org.apache.commons.jelly.JellyContext;

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     /** <p><code>ConstantExpression</code> represents a constant expression.</p>

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       *

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       * <p> In other words, {@link #evaluate} returns a value independent of the context. </p>

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       *

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       * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>

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       * @version $Revision: 155420 $

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       */

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     public class ConstantExpression extends ExpressionSupport {

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         /** The value of this expression */

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         private Object value;

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         /** Base constructor

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          */

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0

         public ConstantExpression() {

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         }

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         /** Convenience constructor sets <code>value</code> property.

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          */

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         public ConstantExpression(Object value) {

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             this.value = value;

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         }

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         public String toString() {

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             return super.toString() + "[value=" + value +"]";

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         }

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         public String getExpressionText() {

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             return value == null ? "null" : value.toString();

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         }

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         /**

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           * Evaluate expression against given context.

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           *

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           * @param context evaluate expression against this context

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           * @return current value of <code>value</code> property

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           */

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         public Object evaluate(JellyContext context) {

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             return value;

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         }

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         /** Gets the constant value of this expression */

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         public Object getValue() {

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             return value;

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         }

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         /** Sets the constant value of this expression */

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         public void setValue(Object value) {

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             this.value = value;

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         }

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     }

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