NonDirectoryFileViewerFilter.java

/*
 * JBoss, Home of Professional Open Source.
 *
 * See the LEGAL.txt file distributed with this work for information regarding copyright ownership and licensing.
 *
 * See the AUTHORS.txt file distributed with this work for a full listing of individual contributors.
 */
package org.teiid.designer.ui.common.viewsupport;

import java.io.File;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;


/**
 * Filters out all {@link java.io.File}s that aren't directories.
 * @since 8.0
 */
public class NonDirectoryFileViewerFilter extends ViewerFilter {

    /** 
     * @see org.eclipse.jface.viewers.ViewerFilter#select(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
     * @since 4.2
     */
    @Override
    public boolean select(Viewer theViewer,
                          Object theParentElement,
                          Object theElement) {
        boolean result = true;
        
        if (theElement instanceof File) {
            result = ((File)theElement).isDirectory();
        }
        
        return result;
    }

}