-package org.apache.lucene.document;
-
-/**
- * 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.
- */
-
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-/**
- * A {@link FieldSelector} based on a Map of field names to {@link FieldSelectorResult}s
- *
- */
-public class MapFieldSelector implements FieldSelector {
-
- Map<String,FieldSelectorResult> fieldSelections;
-
- /** Create a a MapFieldSelector
- * @param fieldSelections maps from field names (String) to {@link FieldSelectorResult}s
- */
- public MapFieldSelector(Map<String,FieldSelectorResult> fieldSelections) {
- this.fieldSelections = fieldSelections;
- }
-
- /** Create a a MapFieldSelector
- * @param fields fields to LOAD. List of Strings. All other fields are NO_LOAD.
- */
- public MapFieldSelector(List<String> fields) {
- fieldSelections = new HashMap<String,FieldSelectorResult>(fields.size()*5/3);
- for (final String field : fields)
- fieldSelections.put(field, FieldSelectorResult.LOAD);
- }
-
- /** Create a a MapFieldSelector
- * @param fields fields to LOAD. All other fields are NO_LOAD.
- */
- public MapFieldSelector(String... fields) {
- this(Arrays.asList(fields));
- }
-
-
-
- /** Load field according to its associated value in fieldSelections
- * @param field a field name
- * @return the fieldSelections value that field maps to or NO_LOAD if none.
- */
- public FieldSelectorResult accept(String field) {
- FieldSelectorResult selection = fieldSelections.get(field);
- return selection!=null ? selection : FieldSelectorResult.NO_LOAD;
- }
-
-}