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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.result;
import java.util.Comparator;
/**
* Ensures that meta hits are sorted before normal hits. All meta hits are
* considered equal.
*
* @author Tony Vaagenes
*/
public class MetaHitsFirstComparator extends ChainableComparator {
public MetaHitsFirstComparator(Comparator<Hit> secondaryComparator) {
super(secondaryComparator);
}
@Override
public int compare(Hit left, Hit right) {
if (left.isMeta() && right.isMeta()) {
return 0;
} else if (left.isMeta()) {
return -1;
} else if (right.isMeta()) {
return 1;
} else {
return super.compare(left, right);
}
}
@Override
public String toString() {
return getSecondaryComparator().toString();
}
}
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