SchemaComponentDetail.java

/*******************************************************************************
 * Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
 * which accompanies this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.tools.workbench.mappingsplugin.ui.schema;

import org.eclipse.persistence.tools.workbench.mappingsmodel.schema.MWSchemaComponent;
import org.eclipse.persistence.tools.workbench.utility.AbstractModel;
import org.eclipse.persistence.tools.workbench.utility.events.StateChangeEvent;
import org.eclipse.persistence.tools.workbench.utility.events.StateChangeListener;


abstract class SchemaComponentDetail
    extends AbstractModel
{
    protected MWSchemaComponent component;

    private String value;
        public final static String VALUE_PROPERTY = "value";


    SchemaComponentDetail(MWSchemaComponent component) {
        super();
        this.initialize(component);
        this.postInitialize();
    }

    protected void initialize(MWSchemaComponent component) {
        this.component = component;
        component.addStateChangeListener(this.buildStateChangeListener());
    }

    private void postInitialize() {
        this.value = this.getValueFromComponent();
    }

    private StateChangeListener buildStateChangeListener() {
        return new StateChangeListener() {
            public void stateChanged(StateChangeEvent e) {
                SchemaComponentDetail.this.valueChanged();
            }
        };
    }

    protected void valueChanged() {
        String oldValue = this.value;
        String newValue = this.getValueFromComponent();
        this.value = newValue;
        this.firePropertyChanged(VALUE_PROPERTY, oldValue, newValue);
    }

    protected abstract String getName();

    protected String getValue() {
        return this.value;
    }

    protected abstract String getValueFromComponent();
}