package net.sourceforge.phpdt.sql.view.query;

import java.util.LinkedList;

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

import net.sourceforge.phpdt.sql.view.bookmark.Root;

public class QueryContentProvider implements ITreeContentProvider {
	private LinkedList queryList = new LinkedList();
	public Object[] getChildren(Object parentElement) {
		if (parentElement.equals(Root.ROOT)) {
			return queryList.toArray();
		}
		return Root.EMPTY_ARRAY;
	}
	
	public void addQuery(String query) {
		queryList.add(new QueryNode(query));
	}
	public Object getParent(Object element) {
		return Root.ROOT;
	}

	public boolean hasChildren(Object element) {
		if (element.equals(Root.ROOT)) {
			if (queryList.size() > 0) {
				return true;
			}
		}
		return false;
	}

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

	public void dispose() {
	}

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

}