| /******************************************************************************* |
| * Copyright (c) 2007 Oracle Corporation. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Oracle - initial API and implementation |
| * |
| ********************************************************************************/ |
| |
| package org.eclipse.jst.jsf.common.metadata.query; |
| |
| import org.eclipse.jst.jsf.common.metadata.Entity; |
| |
| /** |
| * Abstract class implementing {@link IEntityQueryVisitor} that concrete subclasses should provide implementations |
| * <p><b>Provisional API - subject to change</b></p> |
| */ |
| public abstract class AbstractEntityQueryVisitor extends AbstractEntityVisitor |
| implements IEntityQueryVisitor { |
| |
| private String _delimiter = "/"; //$NON-NLS-1$ |
| |
| /** |
| * @return EmptyResultSet. Subclasses should override. |
| */ |
| public IResultSet<Entity> findEntities(final Entity initialEntityContext, final String entityKey) { |
| return new EmptyResultSet(); |
| } |
| |
| /** |
| * @return String delimiting levels in the hierarchy. Defaults to "/" |
| */ |
| protected String getLevelDelimiter() { |
| return _delimiter; |
| } |
| |
| /** |
| * Sets the string used to delimit the levels in an entityKey |
| * @param delimiter |
| */ |
| protected void setLevelDelimiter(final String delimiter) { |
| _delimiter = delimiter; |
| } |
| } |