Example usage for org.apache.hadoop.mapreduce.lib.db DBConfiguration OUTPUT_FIELD_NAMES_PROPERTY

Introduction

In this page you can find the example usage for org.apache.hadoop.mapreduce.lib.db DBConfiguration OUTPUT_FIELD_NAMES_PROPERTY.

Prototype

String OUTPUT_FIELD_NAMES_PROPERTY

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Document

Field names in the Output table

Usage

From source file:org.apache.beam.sdk.io.hadoop.format.HadoopFormatIOIT.java

License:Apache License

private static void setupHadoopConfiguration(PostgresIOTestPipelineOptions options) {
    Configuration conf = new Configuration();
    DBConfiguration.configureDB(conf, "org.postgresql.Driver", DatabaseTestHelper.getPostgresDBUrl(options),
            options.getPostgresUsername(), options.getPostgresPassword());

    conf.set(DBConfiguration.INPUT_TABLE_NAME_PROPERTY, tableName);
    conf.setStrings(DBConfiguration.INPUT_FIELD_NAMES_PROPERTY, "id", "name");
    conf.set(DBConfiguration.INPUT_ORDER_BY_PROPERTY, "id ASC");
    conf.setClass(DBConfiguration.INPUT_CLASS_PROPERTY, TestRowDBWritable.class, DBWritable.class);

    conf.setClass("key.class", LongWritable.class, Object.class);
    conf.setClass("value.class", TestRowDBWritable.class, Object.class);
    conf.setClass("mapreduce.job.inputformat.class", DBInputFormat.class, InputFormat.class);

    conf.set(DBConfiguration.OUTPUT_TABLE_NAME_PROPERTY, tableName);
    conf.set(DBConfiguration.OUTPUT_FIELD_COUNT_PROPERTY, "2");
    conf.setStrings(DBConfiguration.OUTPUT_FIELD_NAMES_PROPERTY, "id", "name");

    conf.setClass(HadoopFormatIO.OUTPUT_KEY_CLASS, TestRowDBWritable.class, Object.class);
    conf.setClass(HadoopFormatIO.OUTPUT_VALUE_CLASS, NullWritable.class, Object.class);
    conf.setClass(HadoopFormatIO.OUTPUT_FORMAT_CLASS_ATTR, DBOutputFormat.class, OutputFormat.class);
    conf.set(HadoopFormatIO.JOB_ID, String.valueOf(1));

    hadoopConfiguration = new SerializableConfiguration(conf);
}

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