AsynchronousValidator.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.utility.node;

import org.eclipse.persistence.tools.workbench.utility.SynchronizedBoolean;
import org.eclipse.persistence.tools.workbench.utility.string.StringTools;


/**
 * This implementation of the PluggableValidator.Delegate interface
 * simply sets a shared "validate" flag to true. This should trigger a
 * separate "validation" thread to begin validating the appropriate
 * branch of nodes.
 */
public class AsynchronousValidator
    implements PluggableValidator.Delegate
{
    private SynchronizedBoolean validateFlag;

    /**
     * Construct a validator delegate with the specified shared
     * "validate" flag. This flag should be shared with
     * another thread that will perform the actual validation.
     */
    public AsynchronousValidator(SynchronizedBoolean validateFlag) {
        super();
        this.validateFlag = validateFlag;
    }

    /**
     * Set the shared "validate" flag to true, triggering
     * an asynchronous validation of the appropriate
     * branch of nodes.
     * @see PluggableValidator.Delegate#validate()
     */
    public void validate() {
        this.validateFlag.setTrue();
    }

    /**
     * @see Object#toString()
     */
    public String toString() {
        return StringTools.buildToStringFor(this, this.validateFlag);
    }

}