public abstract static class JdbcIO.Write<T> extends PTransform<PCollection<T>,PDone>
PTransform
to write to a JDBC datasource.name
Constructor and Description |
---|
Write() |
Modifier and Type | Method and Description |
---|---|
PDone |
expand(PCollection<T> input)
Override this method to specify how this
PTransform should be expanded on the given
InputT . |
JdbcIO.Write<T> |
withBatchSize(long batchSize)
Provide a maximum size in number of SQL statenebt for the batch.
|
JdbcIO.Write<T> |
withDataSourceConfiguration(JdbcIO.DataSourceConfiguration config) |
JdbcIO.Write<T> |
withPreparedStatementSetter(JdbcIO.PreparedStatementSetter<T> setter) |
JdbcIO.Write<T> |
withRetryStrategy(JdbcIO.RetryStrategy retryStrategy)
When a SQL exception occurs,
JdbcIO.Write uses this JdbcIO.RetryStrategy to determine if it
will retry the statements. |
JdbcIO.Write<T> |
withStatement(java.lang.String statement) |
compose, getAdditionalInputs, getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, populateDisplayData, toString, validate
public JdbcIO.Write<T> withDataSourceConfiguration(JdbcIO.DataSourceConfiguration config)
public JdbcIO.Write<T> withStatement(java.lang.String statement)
public JdbcIO.Write<T> withPreparedStatementSetter(JdbcIO.PreparedStatementSetter<T> setter)
public JdbcIO.Write<T> withBatchSize(long batchSize)
batchSize
- maximum batch size in number of statementspublic JdbcIO.Write<T> withRetryStrategy(JdbcIO.RetryStrategy retryStrategy)
JdbcIO.Write
uses this JdbcIO.RetryStrategy
to determine if it
will retry the statements. If JdbcIO.RetryStrategy.apply(SQLException)
returns true
,
then JdbcIO.Write
retries the statements.public PDone expand(PCollection<T> input)
PTransform
PTransform
should be expanded on the given
InputT
.
NOTE: This method should not be called directly. Instead apply the PTransform
should
be applied to the InputT
using the apply
method.
Composite transforms, which are defined in terms of other transforms, should return the output of one of the composed transforms. Non-composite transforms, which do not apply any transforms internally, should return a new unbound output and register evaluators (via backend-specific registration methods).
expand
in class PTransform<PCollection<T>,PDone>