Example usage for org.apache.hadoop.util.bloom Filter not

Introduction

In this page you can find the example usage for org.apache.hadoop.util.bloom Filter not.

Prototype

public abstract void not();

Source Link

Document

Performs a logical NOT on this filter.

Usage

From source file:brickhouse.udf.bloom.BloomNotUDF.java

License:Apache License

public String evaluate(String bloomStr) throws IOException {
    Filter bloom = BloomFactory.GetBloomFilter(bloomStr);

    /// Perform a logical not 
    bloom.not();

    return BloomFactory.WriteBloomToString(bloom);
}

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From source file:hivemall.sketch.bloom.BloomNotUDF.java

License:Apache License

@Nullable
public Text evaluate(@Nullable Text bloomStr) throws HiveException {
    if (bloomStr == null) {
        return null;
    }// ww  w  . j a  v  a  2  s  .c  om

    final Filter bloom;
    try {
        bloom = BloomFilterUtils.deserialize(bloomStr, new DynamicBloomFilter());
    } catch (IOException e) {
        throw new HiveException(e);
    }

    bloom.not();

    try {
        return BloomFilterUtils.serialize(bloom, new Text());
    } catch (IOException e) {
        throw new HiveException(e);
    }
}

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