org.apache.beam.sdk.io.gcp.bigquery

Class TableSchemaCache

java.lang.Object

org.apache.beam.sdk.io.gcp.bigquery.TableSchemaCache

public class TableSchemaCache
extends java.lang.Object

An updatable cache for table schemas.

Method Summary

Modifier and Type	Method and Description
com.google.api.services.bigquery.model.TableSchema	getSchema(com.google.api.services.bigquery.model.TableReference tableReference, BigQueryServices.DatasetService datasetService)
com.google.api.services.bigquery.model.TableSchema	putSchemaIfAbsent(com.google.api.services.bigquery.model.TableReference tableReference, com.google.api.services.bigquery.model.TableSchema tableSchema) Registers schema for a table if one is not already present.
void	refreshSchema(com.google.api.services.bigquery.model.TableReference tableReference, BigQueryServices.DatasetService datasetService)
void	refreshThread()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getSchema

@Nullable
public com.google.api.services.bigquery.model.TableSchema getSchema(com.google.api.services.bigquery.model.TableReference tableReference,
                                                                              BigQueryServices.DatasetService datasetService)

putSchemaIfAbsent

@Nullable
public com.google.api.services.bigquery.model.TableSchema putSchemaIfAbsent(com.google.api.services.bigquery.model.TableReference tableReference,
                                                                                      com.google.api.services.bigquery.model.TableSchema tableSchema)

Registers schema for a table if one is not already present. If a schema is already in the cache, returns the existing schema, otherwise returns null.

refreshSchema

public void refreshSchema(com.google.api.services.bigquery.model.TableReference tableReference,
                          BigQueryServices.DatasetService datasetService)

refreshThread

public void refreshThread()