package org.simantics.interop.browsing;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

import org.simantics.browsing.ui.model.children.ChildRule;
import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.exception.DatabaseException;

public class InteropChildRule implements ChildRule{
	@Override
    public boolean isCompatible(Class<?> contentType) {
        return Resource.class.isAssignableFrom(contentType);
    }
	@Override
    public Collection<?> getChildren(ReadGraph graph, Object parent_)
            throws DatabaseException {
        Resource parent = (Resource)parent_;

		
		List<INode> nodes = new ArrayList<INode>();
		nodes.add(new ImportNode2(parent));
		return nodes;
		

    }
    @Override
    public Collection<?> getParents(ReadGraph graph, Object child)
            throws DatabaseException {
        return Collections.emptyList(); // It is not necessary to support this
    }

}