Class SimpleToAvroTransformer
java.lang.Object
org.springframework.integration.context.IntegrationObjectSupport
org.springframework.integration.transformer.AbstractTransformer
org.springframework.integration.transformer.SimpleToAvroTransformer
- All Implemented Interfaces:
org.springframework.beans.factory.Aware,org.springframework.beans.factory.BeanFactoryAware,org.springframework.beans.factory.BeanNameAware,org.springframework.beans.factory.InitializingBean,org.springframework.context.ApplicationContextAware,ExpressionCapable,NamedComponent,GenericTransformer<org.springframework.messaging.Message<?>,org.springframework.messaging.Message<?>>,Transformer
public class SimpleToAvroTransformer extends AbstractTransformer
An Apache Avro transformer for generated
SpecificRecord objects.- Since:
- 5.2
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Field Summary
Fields inherited from class org.springframework.integration.context.IntegrationObjectSupport
EXPRESSION_PARSER, logger -
Constructor Summary
Constructors Constructor Description SimpleToAvroTransformer() -
Method Summary
Modifier and Type Method Description protected java.lang.ObjectdoTransform(org.springframework.messaging.Message<?> message)Subclasses must implement this method to provide the transformation logic.protected voidonInit()Subclasses may implement this for initialization logic.voidsetTypeExpression(org.springframework.expression.Expression expression)Set the expression to evaluate against the message to determine the value for theAvroHeaders.TYPEheader.voidsetTypeExpressionString(java.lang.String expression)Set the expression to evaluate against the message to determine the value for theAvroHeaders.TYPEheader.SimpleToAvroTransformertypeExpression(java.lang.String expression)Set the expression to evaluate against the message to determine the value for theAvroHeaders.TYPEheader.SimpleToAvroTransformertypeExpression(org.springframework.expression.Expression expression)Set the expression to evaluate against the message to determine the value for theAvroHeaders.TYPEheader.Methods inherited from class org.springframework.integration.transformer.AbstractTransformer
transformMethods inherited from class org.springframework.integration.context.IntegrationObjectSupport
afterPropertiesSet, extractTypeIfPossible, generateId, getApplicationContext, getApplicationContextId, getBeanDescription, getBeanFactory, getBeanName, getChannelResolver, getComponentName, getComponentType, getConversionService, getExpression, getIntegrationProperties, getIntegrationProperty, getMessageBuilderFactory, getTaskScheduler, isInitialized, setApplicationContext, setBeanFactory, setBeanName, setChannelResolver, setComponentName, setConversionService, setMessageBuilderFactory, setPrimaryExpression, setTaskScheduler, toString
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Constructor Details
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SimpleToAvroTransformer
public SimpleToAvroTransformer()
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Method Details
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typeExpression
public SimpleToAvroTransformer typeExpression(org.springframework.expression.Expression expression)Set the expression to evaluate against the message to determine the value for theAvroHeaders.TYPEheader.- Parameters:
expression- the expression.- Returns:
- the transformer
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typeExpression
Set the expression to evaluate against the message to determine the value for theAvroHeaders.TYPEheader.- Parameters:
expression- the expression.- Returns:
- the transformer
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setTypeExpression
public void setTypeExpression(org.springframework.expression.Expression expression)Set the expression to evaluate against the message to determine the value for theAvroHeaders.TYPEheader.- Parameters:
expression- the expression.
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setTypeExpressionString
public void setTypeExpressionString(java.lang.String expression)Set the expression to evaluate against the message to determine the value for theAvroHeaders.TYPEheader.- Parameters:
expression- the expression.
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onInit
protected void onInit()Description copied from class:IntegrationObjectSupportSubclasses may implement this for initialization logic.- Overrides:
onInitin classIntegrationObjectSupport
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doTransform
protected java.lang.Object doTransform(org.springframework.messaging.Message<?> message)Description copied from class:AbstractTransformerSubclasses must implement this method to provide the transformation logic. If the return value is itself a Message, it will be used as the result. Otherwise, any non-null return value will be used as the payload of the result Message.- Specified by:
doTransformin classAbstractTransformer- Parameters:
message- The message.- Returns:
- The result of the transformation.
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