List of coprocessorExec() Examples

Examples of coprocessorExec()

org.apache.hadoop.hbase.client.HTable.coprocessorExec()
{@inheritDoc}
org.apache.hadoop.hbase.client.HTableInterface.coprocessorExec()
Invoke the passed {@link org.apache.hadoop.hbase.client.coprocessor.Batch.Call} againstthe {@link CoprocessorProtocol} instances running in the selected regions.All regions beginning with the region containing the startKey row, through to the region containing the endKey row (inclusive) will be used. If startKey or endKey is null, the first and last regions in the table, respectively, will be used in the range selection. @param protocol the CoprocessorProtocol implementation to call @param startKey start region selection with region containing this row @param endKey select regions up to and including the region containingthis row @param callable wraps the CoprocessorProtocol implementation method callsmade per-region @param < T> CoprocessorProtocol subclass for the remote invocation @param < R> Return type for the{@link org.apache.hadoop.hbase.client.coprocessor.Batch.Call#call(Object)}method @return a Map of region names to{@link org.apache.hadoop.hbase.client.coprocessor.Batch.Call#call(Object)} return values

Examples of org.apache.hadoop.hbase.client.HTable.coprocessorExec()

        rowCountVal += result.getSecond();
      }
    }
    StdCallback stdCallback = new StdCallback();
    HTable table = new HTable(conf, tableName);
    table.coprocessorExec(AggregateProtocol.class, scan.getStartRow(), scan
        .getStopRow(),
        new Batch.Call<AggregateProtocol, Pair<List<S>, Long>>() {
          @Override
          public Pair<List<S>, Long> call(AggregateProtocol instance)
              throws IOException {

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Examples of org.apache.hadoop.hbase.client.HTable.coprocessorExec()

        sumWeights = ci.add(sumWeights, result.get(1));
      }
    }
    StdCallback stdCallback = new StdCallback();
    HTable table = new HTable(conf, tableName);
    table.coprocessorExec(AggregateProtocol.class, scan.getStartRow(), scan
        .getStopRow(),
        new Batch.Call<AggregateProtocol, List<S>>() {
          @Override
          public List<S> call(AggregateProtocol instance)
              throws IOException {

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Examples of org.apache.hadoop.hbase.client.HTable.coprocessorExec()

    }
    MaxCallBack aMaxCallBack = new MaxCallBack();
    HTable table = null;
    try {
      table = new HTable(conf, tableName);
      table.coprocessorExec(AggregateProtocol.class, scan.getStartRow(),
          scan.getStopRow(), new Batch.Call<AggregateProtocol, R>() {
            @Override
            public R call(AggregateProtocol instance) throws IOException {
              return instance.getMax(ci, scan);
            }

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Examples of org.apache.hadoop.hbase.client.HTable.coprocessorExec()

    }
    MinCallBack minCallBack = new MinCallBack();
    HTable table = null;
    try {
      table = new HTable(conf, tableName);
      table.coprocessorExec(AggregateProtocol.class, scan.getStartRow(),
          scan.getStopRow(), new Batch.Call<AggregateProtocol, R>() {


            @Override
            public R call(AggregateProtocol instance) throws IOException {
              return instance.getMin(ci, scan);

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Examples of org.apache.hadoop.hbase.client.HTable.coprocessorExec()

    }
    RowNumCallback rowNum = new RowNumCallback();
    HTable table = null;
    try {
      table = new HTable(conf, tableName);
      table.coprocessorExec(AggregateProtocol.class, scan.getStartRow(),
          scan.getStopRow(), new Batch.Call<AggregateProtocol, Long>() {
            @Override
            public Long call(AggregateProtocol instance) throws IOException {
              return instance.getRowNum(ci, scan);
            }

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Examples of org.apache.hadoop.hbase.client.HTable.coprocessorExec()

    }
    SumCallBack sumCallBack = new SumCallBack();
    HTable table = null;
    try {
      table = new HTable(conf, tableName);
      table.coprocessorExec(AggregateProtocol.class, scan.getStartRow(),
          scan.getStopRow(), new Batch.Call<AggregateProtocol, S>() {
            @Override
            public S call(AggregateProtocol instance) throws IOException {
              return instance.getSum(ci, scan);
            }

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Examples of org.apache.hadoop.hbase.client.HTable.coprocessorExec()

    }
    AvgCallBack avgCallBack = new AvgCallBack();
    HTable table = null;
    try {
      table = new HTable(conf, tableName);
      table.coprocessorExec(AggregateProtocol.class, scan.getStartRow(),
          scan.getStopRow(),
          new Batch.Call<AggregateProtocol, Pair<S, Long>>() {
            @Override
            public Pair<S, Long> call(AggregateProtocol instance)
                throws IOException {

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Examples of org.apache.hadoop.hbase.client.HTable.coprocessorExec()

    }
    StdCallback stdCallback = new StdCallback();
    HTable table = null;
    try {
      table = new HTable(conf, tableName);
      table.coprocessorExec(AggregateProtocol.class, scan.getStartRow(),
          scan.getStopRow(),
          new Batch.Call<AggregateProtocol, Pair<List<S>, Long>>() {
            @Override
            public Pair<List<S>, Long> call(AggregateProtocol instance)
                throws IOException {

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Examples of org.apache.hadoop.hbase.client.HTable.coprocessorExec()

    }
    StdCallback stdCallback = new StdCallback();
    HTable table = null;
    try {
      table = new HTable(conf, tableName);
      table.coprocessorExec(AggregateProtocol.class, scan.getStartRow(),
          scan.getStopRow(), new Batch.Call<AggregateProtocol, List<S>>() {
            @Override
            public List<S> call(AggregateProtocol instance) throws IOException {
              return instance.getMedian(ci, scan);
            }

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Examples of org.apache.hadoop.hbase.client.HTable.coprocessorExec()

        new Get(ROW_A), new Get(ROW_B), new Get(ROW_C));


    Batch.Call<PingProtocol,String> call =  Batch.forMethod(PingProtocol.class,
        "ping");
    Map<byte[],String> results =
        table.coprocessorExec(PingProtocol.class, ROW_A, ROW_C, call);




    verifyRegionResults(table, results, ROW_A);
    verifyRegionResults(table, results, ROW_B);
    verifyRegionResults(table, results, ROW_C);

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