org.apache.flink.runtime.state

接口 ConfigurableStateBackend

所有已知实现类:

FsStateBackend, MemoryStateBackend

public interface ConfigurableStateBackend

An interface for state backends that pick up additional parameters from a configuration.

方法概要

限定符和类型	方法和说明
StateBackend	configure(org.apache.flink.configuration.Configuration config) Creates a variant of the state backend that applies additional configuration parameters.

方法详细资料

configure

StateBackend configure(org.apache.flink.configuration.Configuration config)
                throws org.apache.flink.configuration.IllegalConfigurationException

Creates a variant of the state backend that applies additional configuration parameters.

Settings that were directly done on the original state backend object in the application program typically have precedence over setting picked up from the configuration.

If no configuration is applied, or if the method directly applies configuration values to the (mutable) state backend object, this method may return the original state backend object. Otherwise it typically returns a modified copy.

参数:

config - The configuration to pick the values from.

返回:

A reconfigured state backend.

抛出:

org.apache.flink.configuration.IllegalConfigurationException - Thrown if the configuration contained invalid entries.