Java Code Examples for org.apache.flink.api.common.state.ReducingStateDescriptor#initializeSerializerUnlessSet()

The following examples show how to use org.apache.flink.api.common.state.ReducingStateDescriptor#initializeSerializerUnlessSet() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: KeyedStream.java    From Flink-CEPplus with Apache License 2.0 6 votes vote down vote up 
/**
 * Publishes the keyed stream as a queryable ReducingState instance.
 *
 * @param queryableStateName Name under which to the publish the queryable state instance
 * @param stateDescriptor State descriptor to create state instance from
 * @return Queryable state instance
 */
@PublicEvolving
public QueryableStateStream<KEY, T> asQueryableState(
		String queryableStateName,
		ReducingStateDescriptor<T> stateDescriptor) {

	transform("Queryable state: " + queryableStateName,
			getType(),
			new QueryableAppendingStateOperator<>(queryableStateName, stateDescriptor));

	stateDescriptor.initializeSerializerUnlessSet(getExecutionConfig());

	return new QueryableStateStream<>(
			queryableStateName,
			stateDescriptor,
			getKeyType().createSerializer(getExecutionConfig()));
}
Example 2
Source File: KeyedStream.java    From flink with Apache License 2.0 6 votes vote down vote up 
/**
 * Publishes the keyed stream as a queryable ReducingState instance.
 *
 * @param queryableStateName Name under which to the publish the queryable state instance
 * @param stateDescriptor State descriptor to create state instance from
 * @return Queryable state instance
 */
@PublicEvolving
public QueryableStateStream<KEY, T> asQueryableState(
		String queryableStateName,
		ReducingStateDescriptor<T> stateDescriptor) {

	transform("Queryable state: " + queryableStateName,
			getType(),
			new QueryableAppendingStateOperator<>(queryableStateName, stateDescriptor));

	stateDescriptor.initializeSerializerUnlessSet(getExecutionConfig());

	return new QueryableStateStream<>(
			queryableStateName,
			stateDescriptor,
			getKeyType().createSerializer(getExecutionConfig()));
}
Example 3
Source File: KeyedStream.java    From flink with Apache License 2.0 6 votes vote down vote up 
/**
 * Publishes the keyed stream as a queryable ReducingState instance.
 *
 * @param queryableStateName Name under which to the publish the queryable state instance
 * @param stateDescriptor State descriptor to create state instance from
 * @return Queryable state instance
 */
@PublicEvolving
public QueryableStateStream<KEY, T> asQueryableState(
		String queryableStateName,
		ReducingStateDescriptor<T> stateDescriptor) {

	transform("Queryable state: " + queryableStateName,
			getType(),
			new QueryableAppendingStateOperator<>(queryableStateName, stateDescriptor));

	stateDescriptor.initializeSerializerUnlessSet(getExecutionConfig());

	return new QueryableStateStream<>(
			queryableStateName,
			stateDescriptor,
			getKeyType().createSerializer(getExecutionConfig()));
}
Example 4
Source File: DefaultKeyedStateStore.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up 
@Override
public <T> ReducingState<T> getReducingState(ReducingStateDescriptor<T> stateProperties) {
	requireNonNull(stateProperties, "The state properties must not be null");
	try {
		stateProperties.initializeSerializerUnlessSet(executionConfig);
		return getPartitionedState(stateProperties);
	} catch (Exception e) {
		throw new RuntimeException("Error while getting state", e);
	}
}
Example 5
Source File: DefaultKeyedStateStore.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Override
public <T> ReducingState<T> getReducingState(ReducingStateDescriptor<T> stateProperties) {
	requireNonNull(stateProperties, "The state properties must not be null");
	try {
		stateProperties.initializeSerializerUnlessSet(executionConfig);
		return getPartitionedState(stateProperties);
	} catch (Exception e) {
		throw new RuntimeException("Error while getting state", e);
	}
}
Example 6
Source File: DefaultKeyedStateStore.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Override
public <T> ReducingState<T> getReducingState(ReducingStateDescriptor<T> stateProperties) {
	requireNonNull(stateProperties, "The state properties must not be null");
	try {
		stateProperties.initializeSerializerUnlessSet(executionConfig);
		return getPartitionedState(stateProperties);
	} catch (Exception e) {
		throw new RuntimeException("Error while getting state", e);
	}
}
Example 7
Source File: StreamingRuntimeContext.java    From Flink-CEPplus with Apache License 2.0 4 votes vote down vote up 
@Override
public <T> ReducingState<T> getReducingState(ReducingStateDescriptor<T> stateProperties) {
	KeyedStateStore keyedStateStore = checkPreconditionsAndGetKeyedStateStore(stateProperties);
	stateProperties.initializeSerializerUnlessSet(getExecutionConfig());
	return keyedStateStore.getReducingState(stateProperties);
}
Example 8
Source File: StreamingRuntimeContext.java    From flink with Apache License 2.0 4 votes vote down vote up 
@Override
public <T> ReducingState<T> getReducingState(ReducingStateDescriptor<T> stateProperties) {
	KeyedStateStore keyedStateStore = checkPreconditionsAndGetKeyedStateStore(stateProperties);
	stateProperties.initializeSerializerUnlessSet(getExecutionConfig());
	return keyedStateStore.getReducingState(stateProperties);
}
Example 9
Source File: StreamingRuntimeContext.java    From flink with Apache License 2.0 4 votes vote down vote up 
@Override
public <T> ReducingState<T> getReducingState(ReducingStateDescriptor<T> stateProperties) {
	KeyedStateStore keyedStateStore = checkPreconditionsAndGetKeyedStateStore(stateProperties);
	stateProperties.initializeSerializerUnlessSet(getExecutionConfig());
	return keyedStateStore.getReducingState(stateProperties);
}