com.google.appengine.tools.mapreduce

Annotation Type BigQueryDataField

@Retention(value=RUNTIME)
@Target(value=FIELD)
public @interface BigQueryDataField

Annotation to provide additional information related to BigQuery data fields. @see TableFieldSchema.

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
String	description Description of the BigQuery field
BigQueryFieldMode	mode Mode of a bigquery table column determines whether it is repeated, required or nullable.
String	name The name of the bigquery column.

Element Detail

description

public abstract String description

Description of the BigQuery field

Default:

""

name

public abstract String name

The name of the bigquery column. By default it is same as the name of the field in the class. Use this annotation to provide a different name.

Default:

""

mode

public abstract BigQueryFieldMode mode

Mode of a bigquery table column determines whether it is repeated, required or nullable. A required column must not be left null or empty which loading data. By default it is nullable.

Default:

com.google.appengine.tools.mapreduce.BigQueryFieldMode.NULLABLE