com.eyeq.pivot4j.ui.property.SimpleProperty.java Source code

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Here is the source code for com.eyeq.pivot4j.ui.property.SimpleProperty.java

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/*
 * ====================================================================
 * This software is subject to the terms of the Common Public License
 * Agreement, available at the following URL:
 *   http://www.opensource.org/licenses/cpl.html .
 * You must accept the terms of that agreement to use this software.
 * ====================================================================
 */
package com.eyeq.pivot4j.ui.property;

import java.io.Serializable;

import org.apache.commons.configuration.HierarchicalConfiguration;
import org.apache.commons.lang.NullArgumentException;
import org.apache.commons.lang.ObjectUtils;

import com.eyeq.pivot4j.el.ExpressionEvaluator;
import com.eyeq.pivot4j.ui.RenderContext;

public class SimpleProperty extends AbstractProperty {

    private String value;

    SimpleProperty() {
    }

    /**
     * @param name
     */
    public SimpleProperty(String name) {
        super(name);
    }

    /**
     * @param name
     * @param value
     */
    public SimpleProperty(String name, String value) {
        super(name);

        this.value = value;
    }

    /**
     * @return value
     */
    public String getValue() {
        return value;
    }

    /**
     * @param value
     *            the value to set
     */
    public void setValue(String value) {
        this.value = value;
    }

    /**
     * @see com.eyeq.pivot4j.ui.property.Property#getValue(com.eyeq.pivot4j.ui.RenderContext)
     */
    @Override
    public String getValue(RenderContext context) {
        if (context == null) {
            throw new NullArgumentException("context");
        }

        if (value == null) {
            return null;
        }

        ExpressionEvaluator evaluator = context.getExpressionEvaluator();

        return ObjectUtils.toString(evaluator.evaluate(value, context.getExpressionContext()));
    }

    /**
     * @see com.eyeq.pivot4j.ui.property.AbstractProperty#saveState()
     */
    @Override
    public Serializable saveState() {
        return new Serializable[] { super.saveState(), value };
    }

    /**
     * @see com.eyeq.pivot4j.ui.property.AbstractProperty#restoreState(java.io.Serializable)
     */
    @Override
    public void restoreState(Serializable state) {
        Serializable[] states = (Serializable[]) state;

        super.restoreState(states[0]);

        this.value = (String) states[1];
    }

    /**
     * @see com.eyeq.pivot4j.ui.property.AbstractProperty#saveSettings(org.apache.commons.configuration.HierarchicalConfiguration)
     */
    @Override
    public void saveSettings(HierarchicalConfiguration configuration) {
        super.saveSettings(configuration);

        if (value != null) {
            configuration.setProperty("value", value);
        }
    }

    /**
     * @see com.eyeq.pivot4j.ui.property.AbstractProperty#restoreSettings(org.apache
     *      .commons.configuration.HierarchicalConfiguration)
     */
    @Override
    public void restoreSettings(HierarchicalConfiguration configuration) {
        super.restoreSettings(configuration);

        this.value = configuration.getString("value");
    }
}