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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.predicate;
import com.yahoo.api.annotations.Beta;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
/**
* Configuration for a {@link PredicateIndexBuilder}/{@link PredicateIndex} instance.
*
* @author bjorncs
*/
@Beta
public class Config {
public final int arity;
public final long lowerBound;
public final long upperBound;
public final boolean useConjunctionAlgorithm;
private Config(int arity, long lowerBound, long upperBound, boolean useConjunctionAlgorithm) {
this.arity = arity;
this.lowerBound = lowerBound;
this.upperBound = upperBound;
this.useConjunctionAlgorithm = useConjunctionAlgorithm;
}
public void writeToOutputStream(DataOutputStream out) throws IOException {
out.writeInt(arity);
out.writeLong(lowerBound);
out.writeLong(upperBound);
out.writeBoolean(useConjunctionAlgorithm);
}
public static Config fromInputStream(DataInputStream in) throws IOException {
int arity = in.readInt();
long lowerBound = in.readLong();
long upperBound = in.readLong();
boolean useConjunctionAlgorithm = in.readBoolean();
return new Config(arity, lowerBound, upperBound, useConjunctionAlgorithm);
}
public static class Builder {
private int arity = 8;
private long lowerBound = Long.MIN_VALUE;
private long upperBound = Long.MAX_VALUE;
private boolean useConjunctionAlgorithm = false;
public Builder setArity(int arity) {
this.arity = arity;
return this;
}
public Builder setLowerBound(long lowerBound) {
this.lowerBound = lowerBound;
return this;
}
public Builder setUpperBound(long upperBound) {
this.upperBound = upperBound;
return this;
}
public Builder setUseConjunctionAlgorithm(boolean enabled) {
this.useConjunctionAlgorithm = enabled;
return this;
}
public Config build() {
return new Config(arity, lowerBound, upperBound, useConjunctionAlgorithm);
}
}
}
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