org.apache.blur.lucene.search.AbstractWrapperQuery.java Source code

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Here is the source code for org.apache.blur.lucene.search.AbstractWrapperQuery.java

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package org.apache.blur.lucene.search;

/**
 * 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.io.IOException;
import java.util.Set;

import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.Weight;
import org.apache.lucene.search.similarities.Similarity;

public abstract class AbstractWrapperQuery extends Query {
    protected Query _query;
    protected boolean _rewritten;

    public AbstractWrapperQuery(Query query) {
        this(query, false);
    }

    public AbstractWrapperQuery(Query query, boolean rewritten) {
        this._query = query;
        this._rewritten = rewritten;
    }

    public Query getQuery() {
        return _query;
    }

    public boolean isRewritten() {
        return _rewritten;
    }

    public abstract Query clone();

    public abstract Weight createWeight(IndexSearcher searcher) throws IOException;

    public void extractTerms(Set<Term> terms) {
        _query.extractTerms(terms);
    }

    public float getBoost() {
        return _query.getBoost();
    }

    public Similarity getSimilarity(IndexSearcher searcher) {
        return searcher.getSimilarity();
    }

    public abstract Query rewrite(IndexReader reader) throws IOException;

    public void setBoost(float b) {
        _query.setBoost(b);
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = super.hashCode();
        result = prime * result + ((_query == null) ? 0 : _query.hashCode());
        result = prime * result + (_rewritten ? 1231 : 1237);
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (!super.equals(obj))
            return false;
        if (getClass() != obj.getClass())
            return false;
        AbstractWrapperQuery other = (AbstractWrapperQuery) obj;
        if (_query == null) {
            if (other._query != null)
                return false;
        } else if (!_query.equals(other._query))
            return false;
        if (_rewritten != other._rewritten)
            return false;
        return true;
    }

    public abstract String toString();

    public abstract String toString(String field);

}