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Jelly is a Java and XML based scripting engine. Jelly combines the best ideas from JSTL, Velocity, DVSL, Ant and Cocoon all together in a simple yet powerful scripting engine.

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/*
 * Copyright 2002,2004 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.
 */
package org.apache.commons.jelly.impl;

import org.apache.commons.jelly.expression.Expression;

/**
 * Represents the attribute definition used by dynamic tags, such as whether the attribute is required
 * or any default values etc.
 *
 * @author James Strachan
 * @version $Revision: 155420 $
 */
public class Attribute {

    /** the name of the attribute */
    private String name;

    /** the default value expression */
    private Expression defaultValue;

    /** whether this attribute is required */
    private boolean required;

    public Attribute() {
    }

    // Properties
    //-------------------------------------------------------------------------

    /**
     * Returns whether this attribute is required.
     * @return boolean
     */
    public boolean isRequired() {
        return required;
    }

    /**
     * Sets whether this attribute is required.
     * @param required is true if this attribute is a mandatory attribute
     */
    public void setRequired(boolean required) {
        this.required = required;
    }

    /**
     * Returns the name.
     * @return String
     */
    public String getName() {
        return name;
    }

    /**
     * Sets the name.
     * @param name The name to set
     */
    public void setName(String name) {
        this.name = name;
    }

    /**
     * Returns the defaultValue.
     * @return Expression
     */
    public Expression getDefaultValue() {
        return defaultValue;
    }

    /**
     * Sets the defaultValue.
     * @param defaultValue The defaultValue to set
     */
    public void setDefaultValue(Expression defaultValue) {
        this.defaultValue = defaultValue;
    }

}