org.eclipse.jpt.jpa.eclipselink.ui.internal.details.EclipseLinkConversionValueStateObject.java Source code

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Here is the source code for org.eclipse.jpt.jpa.eclipselink.ui.internal.details.EclipseLinkConversionValueStateObject.java

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/*******************************************************************************
 * Copyright (c) 2008, 2013 Oracle. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0, which accompanies this distribution
 * and is available at http://www.eclipse.org/legal/epl-v10.html.
 *
 * Contributors:
 *     Oracle - initial API and implementation
 ******************************************************************************/
package org.eclipse.jpt.jpa.eclipselink.ui.internal.details;

import java.util.Collection;
import java.util.List;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jpt.common.ui.internal.widgets.NewNameDialog;
import org.eclipse.jpt.common.utility.internal.StringTools;
import org.eclipse.jpt.common.utility.internal.node.AbstractNode;
import org.eclipse.jpt.common.utility.node.Node;
import org.eclipse.jpt.jpa.eclipselink.ui.details.JptJpaEclipseLinkUiDetailsMessages;

/**
 * This is the state object used by the <code>NewNameDialog</code>, which stores
 * the current name and validates it when it is modified.
 */
@SuppressWarnings("nls")
final class EclipseLinkConversionValueStateObject extends AbstractNode {
    /**
     * The initial dataValue or <code>null</code>
     */
    private String dataValue;

    /**
     * The collection of data values that can't be used or an empty collection
     */
    private Collection<String> dataValues;

    /**
     * The initial objectValue or <code>null</code>
     */
    private String objectValue;

    /**
     * The <code>Validator</code> used to validate this state object.
     */
    private Validator validator;

    /**
     * Notifies a change in the data value property.
     */
    static final String DATA_VALUE_PROPERTY = "dataValue";

    /**
     * Notifies a change in the object value property.
     */
    static final String OBJECT_VALUE_PROPERTY = "objectValue";

    /**
     * Creates a new <code>NewNameStateObject</code>.
     *
     * @param name The initial input or <code>null</code> if no initial value can
     * be specified
     * @param names The collection of names that can't be used or an empty
     * collection if none are available
     */
    EclipseLinkConversionValueStateObject(String dataValue, String objectValue, Collection<String> dataValues) {
        super(null);

        this.dataValue = dataValue;
        this.objectValue = objectValue;
        this.dataValues = dataValues;
    }

    private void addDataValueProblemsTo(List<Problem> currentProblems) {
        if (StringTools.isBlank(this.dataValue)) {
            currentProblems.add(buildProblem(
                    JptJpaEclipseLinkUiDetailsMessages.ECLIPSELINK_CONVERSION_VALUE_STATE_OBJECT_DATA_VALUE_MUST_BE_SPECIFIED,
                    IMessageProvider.ERROR));
        } else if (this.dataValues.contains(this.dataValue)) {
            currentProblems.add(buildProblem(
                    JptJpaEclipseLinkUiDetailsMessages.ECLIPSELINK_CONVERSION_VALUE_STATE_OBJECT_DATA_VALUE_ALREADY_EXISTS,
                    IMessageProvider.ERROR));
        }
    }

    private void addObjectValueProblemsTo(List<Problem> currentProblems) {
        if (StringTools.isBlank(this.objectValue)) {
            currentProblems.add(buildProblem(
                    JptJpaEclipseLinkUiDetailsMessages.ECLIPSELINK_CONVERSION_VALUE_STATE_OBJECT_OBJECT_VALUE_MUST_BE_SPECIFIED,
                    IMessageProvider.ERROR));
        }
    }

    @Override
    protected void addProblemsTo(List<Problem> currentProblems) {
        super.addProblemsTo(currentProblems);
        addDataValueProblemsTo(currentProblems);
        addObjectValueProblemsTo(currentProblems);
    }

    @Override
    protected void checkParent(Node parentNode) {
        //not parent
    }

    public String displayString() {
        return null;
    }

    String getDataValue() {
        return this.dataValue;
    }

    String getObjectValue() {
        return this.objectValue;
    }

    public void setDataValue(String dataValue) {
        String oldDataValue = this.dataValue;
        this.dataValue = dataValue;
        firePropertyChanged(DATA_VALUE_PROPERTY, oldDataValue, dataValue);
    }

    public void setObjectValue(String objectValue) {
        String oldObjectValue = this.objectValue;
        this.objectValue = objectValue;
        firePropertyChanged(OBJECT_VALUE_PROPERTY, oldObjectValue, objectValue);
    }

    @Override
    public void setValidator(Validator validator) {
        this.validator = validator;
    }

    @Override
    public Validator getValidator() {
        return this.validator;
    }
}