TreeContentProvider.java

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// Copyright (C) 2006-2016 Talend Inc. - www.talend.com
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// %InstallDIR%\features\org.talend.rcp.branding.%PRODUCTNAME%\%PRODUCTNAME%license.txt
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package org.talend.mdm.workbench.serverexplorer.ui.providers;

import java.util.Collection;

import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;

/**
 * DOC hbhong class global comment. Detailled comment
 */
public class TreeContentProvider implements ITreeContentProvider {

    public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
    }

    public void dispose() {
    }

    public Object[] getElements(Object inputElement) {
        return getChildren(inputElement);
    }

    public Object[] getChildren(Object parentElement) {
        if (parentElement instanceof Collection) {
            return ((Collection<?>) parentElement).toArray();
        }
        return new Object[0];
    }

    public Object getParent(Object element) {
        return null;
    }

    public boolean hasChildren(Object element) {
        return getChildren(element).length > 0;
    }
}