Example usage for org.apache.cassandra.db.filter ClusteringIndexNamesFilter ClusteringIndexNamesFilter

Introduction

In this page you can find the example usage for org.apache.cassandra.db.filter ClusteringIndexNamesFilter ClusteringIndexNamesFilter.

Prototype

public ClusteringIndexNamesFilter(NavigableSet<Clustering> clusterings, boolean reversed) 

Source Link

Usage

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

License:Apache License

@Override
protected boolean prepareNext() {

    if (next != null) {
        return true;
    }/*  ww  w  .  jav  a  2 s .  c om*/

    if (nextDoc == null) {
        if (!documents.hasNext()) {
            return false;
        }
        nextDoc = documents.next();
    }

    DecoratedKey key = service.decoratedKey(nextDoc.left);
    NavigableSet<Clustering> clusterings = clusterings(key);

    if (clusterings.isEmpty()) {
        return prepareNext();
    }

    ClusteringIndexFilter filter = new ClusteringIndexNamesFilter(clusterings, false);
    UnfilteredRowIterator data = read(key, filter);

    if (data.isEmpty()) {
        data.close();
        return prepareNext();
    }

    next = data;
    return true;
}

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

License:Apache License

/**
 * Retrieves from the local storage the {@link Row}s in the specified partition slice.
 *
 * @param key the partition key/*from   w w  w.j  ava 2 s  .com*/
 * @param clusterings the clustering keys
 * @param nowInSec max allowed time in seconds
 * @param opGroup operation group spanning the calling operation
 * @return a {@link Row} iterator
 */
public UnfilteredRowIterator read(DecoratedKey key, NavigableSet<Clustering> clusterings, int nowInSec,
        OpOrder.Group opGroup) {
    ClusteringIndexNamesFilter filter = new ClusteringIndexNamesFilter(clusterings, false);
    ColumnFilter columnFilter = ColumnFilter.all(metadata);
    return SinglePartitionReadCommand.create(metadata, nowInSec, key, columnFilter, filter)
            .queryMemtableAndDisk(table, opGroup);
}

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From source file:io.puntanegra.fhir.index.FhirIndexSearcher.java

License:Apache License

@Override
public boolean hasNext() {
    if (next != null) {
        return true;
    }//  www.  j a  v  a 2s  . c o m

    if (nextDoc == null) {
        if (!documents.hasNext()) {
            return false;
        }
        nextDoc = documents.next();
    }

    DecoratedKey key = service.decoratedKey(nextDoc.left);
    NavigableSet<Clustering> clusterings = clusterings(key);

    if (clusterings.isEmpty()) {
        return hasNext();
    }

    ClusteringIndexFilter filter = new ClusteringIndexNamesFilter(clusterings, false);
    UnfilteredRowIterator data = read(key, filter);

    if (data.isEmpty()) {
        data.close();
        return hasNext();
    }

    next = data;
    return true;
}

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From source file:io.puntanegra.fhir.index.FhirIndexService.java

License:Apache License

/**
 * Retrieves from the local storage the {@link Row}s in the specified
 * partition slice./*from w w  w . java 2 s .c  o  m*/
 *
 * @param key
 *            the partition key
 * @param clusterings
 *            the clustering keys
 * @param nowInSec
 *            max allowed time in seconds
 * @param opGroup
 *            operation group spanning the calling operation
 * @return a {@link Row} iterator
 */
private UnfilteredRowIterator read(DecoratedKey key, NavigableSet<Clustering> clusterings, int nowInSec,
        OpOrder.Group opGroup) {
    ClusteringIndexNamesFilter filter = new ClusteringIndexNamesFilter(clusterings, false);
    ColumnFilter columnFilter = ColumnFilter.all(metadata);
    return SinglePartitionReadCommand.create(metadata, nowInSec, key, columnFilter, filter)
            .queryMemtableAndDisk(table, opGroup);
}

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