org.apache.lucene.facet.sortedset.SortedSetDocValuesFacetField.java Source code

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Here is the source code for org.apache.lucene.facet.sortedset.SortedSetDocValuesFacetField.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.lucene.facet.sortedset;

import org.apache.lucene.document.Field;
import org.apache.lucene.document.FieldType;
import org.apache.lucene.facet.FacetField;
import org.apache.lucene.index.IndexOptions;

/** Add an instance of this to your Document for every facet
 *  label to be indexed via SortedSetDocValues. */
public class SortedSetDocValuesFacetField extends Field {

    /** Indexed {@link FieldType}. */
    public static final FieldType TYPE = new FieldType();
    static {
        // NOTE: we don't actually use these index options, because this field is "processed" by FacetsConfig.build()
        TYPE.setIndexOptions(IndexOptions.DOCS_AND_FREQS_AND_POSITIONS);
        TYPE.freeze();
    }

    /** Dimension. */
    public final String dim;

    /** Label. */
    public final String label;

    /** Sole constructor. */
    public SortedSetDocValuesFacetField(String dim, String label) {
        super("dummy", TYPE);
        FacetField.verifyLabel(label);
        FacetField.verifyLabel(dim);
        this.dim = dim;
        this.label = label;
    }

    @Override
    public String toString() {
        return "SortedSetDocValuesFacetField(dim=" + dim + " label=" + label + ")";
    }
}