NAME

HBase::JSONRest::Scanner - Simple client for HBase stateless REST scanners

SYNOPSIS

A simple scanner:

    use HBase::JSONRest;

    my $hbase = HBase::JSONRest->new(host => 'my-rest-host');

    my $table       = 'name of table to scan';
    my $prefix      = 'key prefix to scan';
    my $batch_size  = 100; # rows per one batch

    my $scanner = HBase::JSONRest::Scanner->new({
        hbase   => $hbase,
        table   => $table,
        prefix  => $prefix,
        atatime => $batch_size,
    });

    my $rows;
    while ($rows = $scanner->get_next_batch()) {
        print STDERR "got "
            . @$rows . " rows in "
            . sprintf("%.3f", $scanner->{last_batch_time}) . " seconds\n\n";
        print STDERR "first key in batch ==> " . $rows->[0]->{row} . "\n";
        print STDERR "last key in batch  ==> " . $rows->[-1]->{row} . "\n";
    }

DESCRIPTION

Simple client for HBase stateless REST scanners.

METHODS

new

Constructor. Cretes an HBase stateless REST scanner object.

    my $scanner = HBase::JSONRest::Scanner->new({
        hbase   => $hbase,
        table   => $table,
        prefix  => $prefix,
        atatime => $batch_size,
    });

get_next_batch

Gets the next batch of records

    while ($rows = $scanner->get_next_batch()) {
        ...
    }