Package org.springframework.cloud.stream.binder.kafka.streams.function

Class KafkaStreamsBindableProxyFactory

java.lang.Object

org.springframework.cloud.stream.binding.AbstractBindableProxyFactory

org.springframework.cloud.stream.binder.kafka.streams.function.KafkaStreamsBindableProxyFactory

All Implemented Interfaces:

org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanFactoryAware, org.springframework.beans.factory.InitializingBean, org.springframework.cloud.stream.binding.Bindable

public class KafkaStreamsBindableProxyFactory
extends org.springframework.cloud.stream.binding.AbstractBindableProxyFactory
implements org.springframework.beans.factory.InitializingBean, org.springframework.beans.factory.BeanFactoryAware

Kafka Streams specific target bindings proxy factory. See AbstractBindableProxyFactory for more details.

Targets bound by this factory:

KStream KTable GlobalKTable

This class looks at the Function bean's return signature as ResolvableType and introspect the individual types, binding them on the way.

All types on the ResolvableType are bound except for KStream[] array types on the outbound, which will be deferred for binding at a later stage. The reason for doing that is because in this class, we don't have any way to know the actual size in the returned array. That has to wait until the function is invoked and we get a result.

Since:

3.0.0

Author:

Soby Chacko

Field Summary

Fields inherited from class org.springframework.cloud.stream.binding.AbstractBindableProxyFactory

bindingTargetFactories, inputHolders, outputHolders, type

Constructor Summary

Constructors

Constructor	Description
KafkaStreamsBindableProxyFactory(org.springframework.core.ResolvableType[] types, String functionName, Method method)

Method Summary

Modifier and Type	Method	Description
void	addOutputBinding(String output, Class<?> clazz)
void	afterPropertiesSet()
String	getFunctionName()
Set<String>	getInputs()
Map<String,org.springframework.cloud.stream.binding.BoundTargetHolder>	getOutputHolders()
Set<String>	getOutputs()
void	setBeanFactory(org.springframework.beans.factory.BeanFactory beanFactory)

Methods inherited from class org.springframework.cloud.stream.binding.AbstractBindableProxyFactory

createAndBindInputs, createAndBindOutputs, getBindingTargetFactory, populateBindingTargetFactories, unbindInputs, unbindOutputs

Methods inherited from class java.lang.Object

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

Constructor Details

KafkaStreamsBindableProxyFactory

public KafkaStreamsBindableProxyFactory(org.springframework.core.ResolvableType[] types,
 String functionName,
 Method method)

Method Details

afterPropertiesSet

public void afterPropertiesSet()

Specified by:

afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean

getInputs

public Set<String> getInputs()

Specified by:

getInputs in interface org.springframework.cloud.stream.binding.Bindable

Overrides:

getInputs in class org.springframework.cloud.stream.binding.AbstractBindableProxyFactory

getOutputs

public Set<String> getOutputs()

Specified by:

getOutputs in interface org.springframework.cloud.stream.binding.Bindable

Overrides:

getOutputs in class org.springframework.cloud.stream.binding.AbstractBindableProxyFactory

setBeanFactory

public void setBeanFactory(org.springframework.beans.factory.BeanFactory beanFactory)
                    throws org.springframework.beans.BeansException

Specified by:

setBeanFactory in interface org.springframework.beans.factory.BeanFactoryAware

Throws:

org.springframework.beans.BeansException

addOutputBinding

public void addOutputBinding(String output,
 Class<?> clazz)

getFunctionName

public String getFunctionName()

getOutputHolders

public Map<String,org.springframework.cloud.stream.binding.BoundTargetHolder> getOutputHolders()