SimpleFacetQuery.java

/*
 * Copyright 2012 the original author or authors.
 *
 * 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.
 */
package org.springframework.data.solr.core.query;

import org.springframework.data.domain.Pageable;
import org.springframework.util.Assert;

/**
 * Trivial implementation of {@link FacetQuery}
 * 
 * @author Christoph Strobl
 */
public class SimpleFacetQuery extends SimpleQuery implements FacetQuery {

	private FacetOptions facetOptions;

	public SimpleFacetQuery() {
		super();
	}

	public SimpleFacetQuery(Criteria criteria) {
		this(criteria, null);
	}

	public SimpleFacetQuery(Criteria criteria, Pageable pageable) {
		super(criteria, pageable);
	}

	@SuppressWarnings("unchecked")
	@Override
	public final <T extends SolrDataQuery> T setFacetOptions(FacetOptions facetOptions) {
		if (facetOptions != null) {
			Assert.isTrue(facetOptions.hasFacets(), "Cannot set facet options having neither fields nor queries.");
		}
		this.facetOptions = facetOptions;
		return (T) this;
	}

	@Override
	public FacetOptions getFacetOptions() {
		return this.facetOptions;
	}

	@Override
	public boolean hasFacetOptions() {
		return this.getFacetOptions() != null;
	}

}