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AndFilter.java
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51 lines (46 loc) · 1.73 KB
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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.orc.impl.filter;
import org.apache.orc.OrcFilterContext;
/**
* @since 1.7.0
*/
public class AndFilter implements VectorFilter {
public final VectorFilter[] filters;
private final Selected andBound = new Selected();
private final Selected andOut = new Selected();
public AndFilter(VectorFilter[] filters) {
this.filters = filters;
}
@Override
public void filter(OrcFilterContext fc,
Selected bound,
Selected selOut) {
// Each filter restricts the current selection. Make a copy of the current selection that will
// be used for the next filter and finally output to selOut
andBound.set(bound);
andOut.ensureSize(bound.selSize);
for (VectorFilter f : filters) {
andOut.clear();
f.filter(fc, andBound, andOut);
// Make the current selection the bound for the next filter in AND
andBound.set(andOut);
}
selOut.set(andOut);
}
}