+++ /dev/null
-package org.apache.lucene.queryParser.spans;
-
-/**
- * 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 org.apache.lucene.queryParser.core.nodes.FieldableNode;
-import org.apache.lucene.util.AttributeImpl;
-
-/**
- * This attribute is used by the {@link UniqueFieldQueryNodeProcessor}
- * processor. It holds a value that defines which is the unique field name that
- * should be set in every {@link FieldableNode}.<br/>
- * <br/>
- *
- * @see UniqueFieldQueryNodeProcessor
- */
-public class UniqueFieldAttributeImpl extends AttributeImpl implements
- UniqueFieldAttribute {
-
- private static final long serialVersionUID = 8553318595851064232L;
-
- { enableBackwards = false; }
-
- private CharSequence uniqueField;
-
- public UniqueFieldAttributeImpl() {
- clear();
- }
-
- @Override
- public void clear() {
- this.uniqueField = "";
- }
-
- public void setUniqueField(CharSequence uniqueField) {
- this.uniqueField = uniqueField;
- }
-
- public CharSequence getUniqueField() {
- return this.uniqueField;
- }
-
- @Override
- public void copyTo(AttributeImpl target) {
-
- if (!(target instanceof UniqueFieldAttributeImpl)) {
- throw new IllegalArgumentException(
- "cannot copy the values from attribute UniqueFieldAttribute to an instance of "
- + target.getClass().getName());
- }
-
- UniqueFieldAttributeImpl uniqueFieldAttr = (UniqueFieldAttributeImpl) target;
- uniqueFieldAttr.uniqueField = uniqueField.toString();
-
- }
-
- @Override
- public boolean equals(Object other) {
-
- if (other instanceof UniqueFieldAttributeImpl) {
-
- return ((UniqueFieldAttributeImpl) other).uniqueField
- .equals(this.uniqueField);
-
- }
-
- return false;
-
- }
-
- @Override
- public int hashCode() {
- return this.uniqueField.hashCode();
- }
-
- @Override
- public String toString() {
- return "<uniqueField uniqueField='" + this.uniqueField + "'/>";
- }
-
-}