Class DefaultJackson2JavaTypeMapper
java.lang.Object
org.springframework.kafka.support.mapping.AbstractJavaTypeMapper
org.springframework.kafka.support.mapping.DefaultJackson2JavaTypeMapper
- All Implemented Interfaces:
org.springframework.beans.factory.Aware,org.springframework.beans.factory.BeanClassLoaderAware,ClassMapper,Jackson2JavaTypeMapper
public class DefaultJackson2JavaTypeMapper
extends AbstractJavaTypeMapper
implements Jackson2JavaTypeMapper
Jackson 2 type mapper.
- Since:
- 2.1
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Nested Class Summary
Nested classes/interfaces inherited from interface org.springframework.kafka.support.mapping.Jackson2JavaTypeMapper
Jackson2JavaTypeMapper.TypePrecedence -
Field Summary
Fields inherited from class org.springframework.kafka.support.mapping.AbstractJavaTypeMapper
DEFAULT_CLASSID_FIELD_NAME, DEFAULT_CONTENT_CLASSID_FIELD_NAME, DEFAULT_KEY_CLASSID_FIELD_NAME, KEY_DEFAULT_CLASSID_FIELD_NAME, KEY_DEFAULT_CONTENT_CLASSID_FIELD_NAME, KEY_DEFAULT_KEY_CLASSID_FIELD_NAME -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoidaddTrustedPackages(String... packagesToTrust) Specify a set of packages to trust during deserialization.voidvoidfromJavaType(com.fasterxml.jackson.databind.JavaType javaType, org.apache.kafka.common.header.Headers headers) Return the precedence.voidremoveHeaders(org.apache.kafka.common.header.Headers headers) Remove the type information headers.voidsetTypePrecedence(Jackson2JavaTypeMapper.TypePrecedence typePrecedence) Set the precedence for evaluating type information in message properties.Class<?>toClass(org.apache.kafka.common.header.Headers headers) com.fasterxml.jackson.databind.JavaTypetoJavaType(org.apache.kafka.common.header.Headers headers) Methods inherited from class org.springframework.kafka.support.mapping.AbstractJavaTypeMapper
addHeader, getClassIdFieldName, getClassLoader, getContentClassIdFieldName, getIdClassMapping, getKeyClassIdFieldName, retrieveHeader, retrieveHeaderAsString, setBeanClassLoader, setClassIdFieldName, setContentClassIdFieldName, setIdClassMapping, setKeyClassIdFieldName, setUseForKey
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Constructor Details
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DefaultJackson2JavaTypeMapper
public DefaultJackson2JavaTypeMapper()
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Method Details
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getTypePrecedence
Return the precedence.- Specified by:
getTypePrecedencein interfaceJackson2JavaTypeMapper- Returns:
- the precedence.
- See Also:
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setTypePrecedence
Description copied from interface:Jackson2JavaTypeMapperSet the precedence for evaluating type information in message properties. When using@KafkaListenerat the method level, the framework attempts to determine the target type for payload conversion from the method signature. If so, this type is provided by theMessagingMessageListenerAdapter.By default, if the type is concrete (not abstract, not an interface), this will be used ahead of type information provided in the
__TypeId__and associated headers provided by the sender.If you wish to force the use of the
__TypeId__and associated headers (such as when the actual type is a subclass of the method argument type), set the precedence toJackson2JavaTypeMapper.TypePrecedence.TYPE_ID.- Specified by:
setTypePrecedencein interfaceJackson2JavaTypeMapper- Parameters:
typePrecedence- the precedence.
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addTrustedPackages
Specify a set of packages to trust during deserialization. The asterisk (*) means trust all.- Specified by:
addTrustedPackagesin interfaceJackson2JavaTypeMapper- Parameters:
packagesToTrust- the trusted Java packages for deserialization
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toJavaType
public com.fasterxml.jackson.databind.JavaType toJavaType(org.apache.kafka.common.header.Headers headers) - Specified by:
toJavaTypein interfaceJackson2JavaTypeMapper
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fromJavaType
public void fromJavaType(com.fasterxml.jackson.databind.JavaType javaType, org.apache.kafka.common.header.Headers headers) - Specified by:
fromJavaTypein interfaceJackson2JavaTypeMapper
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fromClass
- Specified by:
fromClassin interfaceClassMapper
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toClass
- Specified by:
toClassin interfaceClassMapper
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removeHeaders
public void removeHeaders(org.apache.kafka.common.header.Headers headers) Description copied from interface:Jackson2JavaTypeMapperRemove the type information headers.- Specified by:
removeHeadersin interfaceJackson2JavaTypeMapper- Parameters:
headers- the headers.
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