| /* |
| * Copyright 2000-2014 Vaadin Ltd. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| * |
| * Contributor: |
| * Florian Pirchner - Copied filter and fixed them for osbp usecase. |
| */ |
| package org.eclipse.osbp.jpa.services.filters; |
| |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Collections; |
| |
| import org.eclipse.osbp.runtime.common.filter.ILFilter; |
| |
| |
| public class LAbstractJunctionFilter implements ILFilter { |
| |
| protected final Collection<ILFilter> filters; |
| |
| public LAbstractJunctionFilter(ILFilter... filters) { |
| this.filters = Collections.unmodifiableCollection(Arrays |
| .asList(filters)); |
| } |
| |
| /** |
| * Returns an unmodifiable collection of the sub-filters of this composite |
| * filter. |
| * |
| * @return |
| */ |
| public Collection<ILFilter> getFilters() { |
| return filters; |
| } |
| |
| /** |
| * Returns true if a change in the named property may affect the filtering |
| * result. If some of the sub-filters are not in-memory filters, true is |
| * returned. |
| * |
| * By default, all sub-filters are iterated to check if any of them applies. |
| * If there are no sub-filters, false is returned - override in subclasses |
| * to change this behavior. |
| */ |
| @Override |
| public boolean appliesToProperty(Object propertyId) { |
| for (ILFilter filter : getFilters()) { |
| if (filter.appliesToProperty(propertyId)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj == null || !getClass().equals(obj.getClass())) { |
| return false; |
| } |
| LAbstractJunctionFilter other = (LAbstractJunctionFilter) obj; |
| // contents comparison with equals() |
| return Arrays.equals(filters.toArray(), other.filters.toArray()); |
| } |
| |
| @Override |
| public int hashCode() { |
| int hash = getFilters().size(); |
| for (ILFilter filter : filters) { |
| hash = (hash << 1) ^ filter.hashCode(); |
| } |
| return hash; |
| } |
| } |