Example usage for org.apache.cassandra.db ReadCommand clusteringIndexFilter

Introduction

In this page you can find the example usage for org.apache.cassandra.db ReadCommand clusteringIndexFilter.

Prototype

public abstract ClusteringIndexFilter clusteringIndexFilter(DecoratedKey key);

Source Link

Document

The clustering index filter this command to use for the provided key.

Usage

From source file:com.stratio.cassandra.lucene.IndexService.java

License:Apache License

/**
 * Returns the key range query represented by the specified {@link ReadCommand}.
 *
 * @param command the read command//from   ww w  . jav  a2 s .  co m
 * @return the key range query
 */
private Optional<Query> query(ReadCommand command) {
    if (command instanceof SinglePartitionReadCommand) {
        DecoratedKey key = ((SinglePartitionReadCommand) command).partitionKey();
        ClusteringIndexFilter clusteringFilter = command.clusteringIndexFilter(key);
        return Optional.of(query(key, clusteringFilter));
    } else if (command instanceof PartitionRangeReadCommand) {
        DataRange dataRange = ((PartitionRangeReadCommand) command).dataRange();
        return query(dataRange);
    } else {
        throw new IndexException("Unsupported read command %s", command.getClass());
    }
}

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