package org.simantics.interop.browsing;

import java.util.Collection;

import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.ISelection;
import org.simantics.browsing.ui.common.node.IDeletable;
import org.simantics.browsing.ui.content.Labeler.Modifier;
import org.simantics.db.ReadGraph;
import org.simantics.db.Session;
import org.simantics.db.WriteGraph;
import org.simantics.db.exception.DatabaseException;

public interface INode extends IAdaptable {
    String getLabel(ReadGraph graph) throws DatabaseException;
    int getCategory(ReadGraph graph) throws DatabaseException;
    Collection<?> getChildren(ReadGraph graph) throws DatabaseException;
    boolean hasChildren(ReadGraph graph) throws DatabaseException;
    ImageDescriptor getImage(ReadGraph graph) throws DatabaseException;
    void handleDrop(Session session, ISelection selection);
    Modifier getModifier(Session session, String columnId);

    /**
     * Delete node in the background system. The node is considered deletable
     * only if it implements {@link IDeletable}.
     */
    void handleDelete(WriteGraph graph) throws DatabaseException;
}