Jaxb2Marshaller

java.lang.Object
- org.springframework.oxm.jaxb.Jaxb2Marshaller

All Implemented Interfaces:

Aware, BeanClassLoaderAware, InitializingBean, GenericMarshaller, GenericUnmarshaller, Marshaller, MimeMarshaller, MimeUnmarshaller, Unmarshaller
```
public class Jaxb2Marshaller
extends Object
implements MimeMarshaller, MimeUnmarshaller, GenericMarshaller, GenericUnmarshaller, BeanClassLoaderAware, InitializingBean
```
Implementation of the GenericMarshaller interface for JAXB 2.2.
The typical usage will be to set either the "contextPath" or the "classesToBeBound" property on this bean, possibly customize the marshaller and unmarshaller by setting properties, schemas, adapters, and listeners, and to refer to it.

Since:

3.0

Author:

Arjen Poutsma, Juergen Hoeller, Rossen Stoyanchev

See Also:

setContextPath(String), setClassesToBeBound(Class[]), setJaxbContextProperties(Map), setMarshallerProperties(Map), setUnmarshallerProperties(Map), setSchema(Resource), setSchemas(Resource[]), setMarshallerListener(javax.xml.bind.Marshaller.Listener), setUnmarshallerListener(javax.xml.bind.Unmarshaller.Listener), setAdapters(XmlAdapter[])

Field Summary

Fields
Modifier and Type Field and Description

protected Log logger
Logger available to subclasses.

Fields
Modifier and Type	Field and Description
`protected Log`	`logger` Logger available to subclasses.

Constructor Summary

Constructors
Constructor and Description

Jaxb2Marshaller()

Constructors
Constructor and Description
`Jaxb2Marshaller()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`afterPropertiesSet()` Invoked by the containing `BeanFactory` after it has set all bean properties and satisfied `BeanFactoryAware`, `ApplicationContextAware` etc.
`protected XmlMappingException`	`convertJaxbException(JAXBException ex)` Convert the given `JAXBException` to an appropriate exception from the `org.springframework.oxm` hierarchy.
`protected Marshaller`	`createMarshaller()` Return a newly created JAXB marshaller.
`protected Unmarshaller`	`createUnmarshaller()` Return a newly created JAXB unmarshaller.
`Class<?>[]`	`getClassesToBeBound()` Return the list of Java classes to be recognized by a newly created JAXBContext.
`String`	`getContextPath()` Return the JAXB context path.
`JAXBContext`	`getJaxbContext()` Return the JAXBContext used by this marshaller, lazily building it if necessary.
`String[]`	`getPackagesToScan()` Return the packages to search for JAXB2 annotations.
`protected void`	`initJaxbMarshaller(Marshaller marshaller)` Template method that can be overridden by concrete JAXB marshallers for custom initialization behavior.
`protected void`	`initJaxbUnmarshaller(Unmarshaller unmarshaller)` Template method that can be overridden by concrete JAXB marshallers for custom initialization behavior.
`boolean`	`isProcessExternalEntities()` Returns the configured value for whether XML external entities are allowed.
`boolean`	`isSupportDtd()` Whether DTD parsing is supported.
`void`	`marshal(Object graph, Result result)` Marshal the object graph with the given root into the provided `Result`.
`void`	`marshal(Object graph, Result result, MimeContainer mimeContainer)` Marshals the object graph with the given root into the provided `Result`, writing binary data to a `MimeContainer`.
`void`	`setAdapters(XmlAdapter<?,?>... adapters)` Specify the `XmlAdapter`s to be registered with the JAXB `Marshaller` and `Unmarshaller`.
`void`	`setBeanClassLoader(ClassLoader classLoader)` Callback that supplies the bean `class loader` to a bean instance.
`void`	`setCheckForXmlRootElement(boolean checkForXmlRootElement)` Specify whether the `supports(Class)` should check for `@XmlRootElement` annotations.
`void`	`setClassesToBeBound(Class<?>... classesToBeBound)` Set the list of Java classes to be recognized by a newly created JAXBContext.
`void`	`setContextPath(String contextPath)` Set a JAXB context path.
`void`	`setContextPaths(String... contextPaths)` Set multiple JAXB context paths.
`void`	`setJaxbContextProperties(Map<String,?> jaxbContextProperties)` Set the `JAXBContext` properties.
`void`	`setLazyInit(boolean lazyInit)` Set whether to lazily initialize the `JAXBContext` for this marshaller.
`void`	`setMappedClass(Class<?> mappedClass)` Specify a JAXB mapped class for partial unmarshalling.
`void`	`setMarshallerListener(Marshaller.Listener marshallerListener)` Specify the `Marshaller.Listener` to be registered with the JAXB `Marshaller`.
`void`	`setMarshallerProperties(Map<String,?> properties)` Set the JAXB `Marshaller` properties.
`void`	`setMtomEnabled(boolean mtomEnabled)` Specify whether MTOM support should be enabled or not.
`void`	`setPackagesToScan(String... packagesToScan)` Set the packages to search for classes with JAXB2 annotations in the classpath.
`void`	`setProcessExternalEntities(boolean processExternalEntities)` Indicates whether external XML entities are processed when unmarshalling.
`void`	`setSchema(Resource schemaResource)` Set the schema resource to use for validation.
`void`	`setSchemaLanguage(String schemaLanguage)` Set the schema language.
`void`	`setSchemaResourceResolver(LSResourceResolver schemaResourceResolver)` Set the resource resolver, as used to load the schema resources.
`void`	`setSchemas(Resource... schemaResources)` Set the schema resources to use for validation.
`void`	`setSupportDtd(boolean supportDtd)` Indicates whether DTD parsing should be supported.
`void`	`setSupportJaxbElementClass(boolean supportJaxbElementClass)` Specify whether the `supports(Class)` returns `true` for the `JAXBElement` class.
`void`	`setUnmarshallerListener(Unmarshaller.Listener unmarshallerListener)` Set the `Unmarshaller.Listener` to be registered with the JAXB `Unmarshaller`.
`void`	`setUnmarshallerProperties(Map<String,?> properties)` Set the JAXB `Unmarshaller` properties.
`void`	`setValidationEventHandler(ValidationEventHandler validationEventHandler)` Set the JAXB validation event handler.
`boolean`	`supports(Class<?> clazz)` Indicate whether this marshaller can marshal instances of the supplied type.
`boolean`	`supports(Type genericType)` Indicates whether this marshaller can marshal instances of the supplied generic type.
`Object`	`unmarshal(Source source)` Unmarshal the given `Source` into an object graph.
`Object`	`unmarshal(Source source, MimeContainer mimeContainer)` Unmarshals the given provided `Source` into an object graph, reading binary attachments from a `MimeContainer`.
`protected Object`	`unmarshalStaxSource(Unmarshaller jaxbUnmarshaller, Source staxSource)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - logger
```
protected final Log logger
```
    Logger available to subclasses.
- Constructor Detail
  - Jaxb2Marshaller
```
public Jaxb2Marshaller()
```
- Method Detail
  - setContextPaths
```
public void setContextPaths(String... contextPaths)
```
    Set multiple JAXB context paths. The given array of context paths gets converted to a colon-delimited string, as supported by JAXB.
  - setContextPath
```
public void setContextPath(@Nullable
                           String contextPath)
```
    Set a JAXB context path.
    Setting either this property, "classesToBeBound" or "packagesToScan" is required.
  - getContextPath
```
@Nullable
public String getContextPath()
```
    Return the JAXB context path.
  - setClassesToBeBound
```
public void setClassesToBeBound(@Nullable
                                Class<?>... classesToBeBound)
```
    Set the list of Java classes to be recognized by a newly created JAXBContext.
    Setting either this property, "contextPath" or "packagesToScan" is required.
  - getClassesToBeBound
```
@Nullable
public Class<?>[] getClassesToBeBound()
```
    Return the list of Java classes to be recognized by a newly created JAXBContext.
  - setPackagesToScan
```
public void setPackagesToScan(@Nullable
                              String... packagesToScan)
```
    Set the packages to search for classes with JAXB2 annotations in the classpath. This is using a Spring-bases search and therefore analogous to Spring's component-scan feature (ClassPathBeanDefinitionScanner).
    Setting either this property, "contextPath" or "classesToBeBound" is required.
  - getPackagesToScan
```
@Nullable
public String[] getPackagesToScan()
```
    Return the packages to search for JAXB2 annotations.
  - setJaxbContextProperties
```
public void setJaxbContextProperties(Map<String,?> jaxbContextProperties)
```
    Set the JAXBContext properties. These implementation-specific properties will be set on the underlying JAXBContext.
  - setMarshallerProperties
```
public void setMarshallerProperties(Map<String,?> properties)
```
    Set the JAXB Marshaller properties. These properties will be set on the underlying JAXB Marshaller, and allow for features such as indentation.
    
    Parameters:
    
    properties - the properties
    
    See Also:
    
    Marshaller.setProperty(String, Object), Marshaller.JAXB_ENCODING, Marshaller.JAXB_FORMATTED_OUTPUT, Marshaller.JAXB_NO_NAMESPACE_SCHEMA_LOCATION, Marshaller.JAXB_SCHEMA_LOCATION
  - setUnmarshallerProperties
```
public void setUnmarshallerProperties(Map<String,?> properties)
```
    Set the JAXB Unmarshaller properties. These properties will be set on the underlying JAXB Unmarshaller.
    
    Parameters:
    
    properties - the properties
    
    See Also:
    
    Unmarshaller.setProperty(String, Object)
  - setMarshallerListener
```
public void setMarshallerListener(Marshaller.Listener marshallerListener)
```
    Specify the Marshaller.Listener to be registered with the JAXB Marshaller.
  - setUnmarshallerListener
```
public void setUnmarshallerListener(Unmarshaller.Listener unmarshallerListener)
```
    Set the Unmarshaller.Listener to be registered with the JAXB Unmarshaller.
  - setValidationEventHandler
```
public void setValidationEventHandler(ValidationEventHandler validationEventHandler)
```
    Set the JAXB validation event handler. This event handler will be called by JAXB if any validation errors are encountered during calls to any of the marshal APIs.
  - setAdapters
```
public void setAdapters(XmlAdapter<?,?>... adapters)
```
    Specify the XmlAdapters to be registered with the JAXB Marshaller and Unmarshaller.
  - setSchema
```
public void setSchema(Resource schemaResource)
```
    Set the schema resource to use for validation.
  - setSchemas
```
public void setSchemas(Resource... schemaResources)
```
    Set the schema resources to use for validation.
  - setSchemaLanguage
```
public void setSchemaLanguage(String schemaLanguage)
```
    Set the schema language. Default is the W3C XML Schema: http://www.w3.org/2001/XMLSchema".
    
    See Also:
    
    XMLConstants.W3C_XML_SCHEMA_NS_URI, XMLConstants.RELAXNG_NS_URI
  - setSchemaResourceResolver
```
public void setSchemaResourceResolver(LSResourceResolver schemaResourceResolver)
```
    Set the resource resolver, as used to load the schema resources.
    
    See Also:
    
    SchemaFactory.setResourceResolver(org.w3c.dom.ls.LSResourceResolver), setSchema(Resource), setSchemas(Resource[])
  - setLazyInit
```
public void setLazyInit(boolean lazyInit)
```
    Set whether to lazily initialize the JAXBContext for this marshaller. Default is false to initialize on startup; can be switched to true.
    Early initialization just applies if afterPropertiesSet() is called.
  - setMtomEnabled
```
public void setMtomEnabled(boolean mtomEnabled)
```
    Specify whether MTOM support should be enabled or not. Default is false: marshalling using XOP/MTOM not being enabled.
  - setSupportJaxbElementClass
```
public void setSupportJaxbElementClass(boolean supportJaxbElementClass)
```
    Specify whether the supports(Class) returns true for the JAXBElement class.
    Default is false, meaning that supports(Class) always returns false for JAXBElement classes (though supports(Type) can return true, since it can obtain the type parameters of JAXBElement).
    This property is typically enabled in combination with usage of classes like MarshallingView, since the ModelAndView does not offer type parameter information at runtime.
    
    See Also:
    
    supports(Class), supports(Type)
  - setCheckForXmlRootElement
```
public void setCheckForXmlRootElement(boolean checkForXmlRootElement)
```
    Specify whether the supports(Class) should check for @XmlRootElement annotations.
    Default is true, meaning that supports(Class) will check for this annotation. However, some JAXB implementations (i.e. EclipseLink MOXy) allow for defining the bindings in an external definition file, thus keeping the classes annotations free. Setting this property to false supports these JAXB implementations.
    
    See Also:
    
    supports(Class), supports(Type)
  - setMappedClass
```
public void setMappedClass(Class<?> mappedClass)
```
    Specify a JAXB mapped class for partial unmarshalling.
    
    See Also:
    
    Unmarshaller.unmarshal(javax.xml.transform.Source, Class)
  - setSupportDtd
```
public void setSupportDtd(boolean supportDtd)
```
    Indicates whether DTD parsing should be supported.
    Default is false meaning that DTD is disabled.
  - isSupportDtd
```
public boolean isSupportDtd()
```
    Whether DTD parsing is supported.
  - setProcessExternalEntities
```
public void setProcessExternalEntities(boolean processExternalEntities)
```
    Indicates whether external XML entities are processed when unmarshalling.
    Default is false, meaning that external entities are not resolved. Note that processing of external entities will only be enabled/disabled when the Source passed to unmarshal(Source) is a SAXSource or StreamSource. It has no effect for DOMSource or StAXSource instances.
    Note: setting this option to true also automatically sets setSupportDtd(boolean) to true.
  - isProcessExternalEntities
```
public boolean isProcessExternalEntities()
```
    Returns the configured value for whether XML external entities are allowed.
  - setBeanClassLoader
```
public void setBeanClassLoader(ClassLoader classLoader)
```
    Description copied from interface: BeanClassLoaderAware
    
    Callback that supplies the bean class loader to a bean instance.
    Invoked after the population of normal bean properties but before an initialization callback such as InitializingBean's InitializingBean.afterPropertiesSet() method or a custom init-method.
    
    Specified by:
    
    setBeanClassLoader in interface BeanClassLoaderAware
    
    Parameters:
    
    classLoader - the owning class loader
  - afterPropertiesSet
```
public void afterPropertiesSet()
                        throws Exception
```
    Description copied from interface: InitializingBean
    
    Invoked by the containing BeanFactory after it has set all bean properties and satisfied BeanFactoryAware, ApplicationContextAware etc.
    This method allows the bean instance to perform validation of its overall configuration and final initialization when all bean properties have been set.
    
    Specified by:
    
    afterPropertiesSet in interface InitializingBean
    
    Throws:
    
    Exception - in the event of misconfiguration (such as failure to set an essential property) or if initialization fails for any other reason
  - getJaxbContext
```
public JAXBContext getJaxbContext()
```
    Return the JAXBContext used by this marshaller, lazily building it if necessary.
  - supports
```
public boolean supports(Class<?> clazz)
```
    Description copied from interface: Marshaller
    
    Indicate whether this marshaller can marshal instances of the supplied type.
    
    Specified by:
    
    supports in interface Marshaller
    
    Specified by:
    
    supports in interface Unmarshaller
    
    Parameters:
    
    clazz - the class that this marshaller is being asked if it can marshal
    
    Returns:
    
    true if this marshaller can indeed marshal instances of the supplied class; false otherwise
  - supports
```
public boolean supports(Type genericType)
```
    Description copied from interface: GenericMarshaller
    
    Indicates whether this marshaller can marshal instances of the supplied generic type.
    
    Specified by:
    
    supports in interface GenericMarshaller
    
    Specified by:
    
    supports in interface GenericUnmarshaller
    
    Parameters:
    
    genericType - the type that this marshaller is being asked if it can marshal
    
    Returns:
    
    true if this marshaller can indeed marshal instances of the supplied type; false otherwise
  - marshal
```
public void marshal(Object graph,
                    Result result)
             throws XmlMappingException
```
    Description copied from interface: Marshaller
    
    Marshal the object graph with the given root into the provided Result.
    
    Specified by:
    
    marshal in interface Marshaller
    
    Parameters:
    
    graph - the root of the object graph to marshal
    
    result - the result to marshal to
    
    Throws:
    
    XmlMappingException - if the given object cannot be marshalled to the result
  - marshal
```
public void marshal(Object graph,
                    Result result,
                    @Nullable
                    MimeContainer mimeContainer)
             throws XmlMappingException
```
    Description copied from interface: MimeMarshaller
    
    Marshals the object graph with the given root into the provided Result, writing binary data to a MimeContainer.
    
    Specified by:
    
    marshal in interface MimeMarshaller
    
    Parameters:
    
    graph - the root of the object graph to marshal
    
    result - the result to marshal to
    
    mimeContainer - the MIME container to write extracted binary content to
    
    Throws:
    
    XmlMappingException - if the given object cannot be marshalled to the result
  - createMarshaller
```
protected Marshaller createMarshaller()
```
    Return a newly created JAXB marshaller. JAXB marshallers are not necessarily thread safe.
  - initJaxbMarshaller
```
protected void initJaxbMarshaller(Marshaller marshaller)
                           throws JAXBException
```
    Template method that can be overridden by concrete JAXB marshallers for custom initialization behavior. Gets called after creation of JAXB Marshaller, and after the respective properties have been set.
    The default implementation sets the defined properties, the validation event handler, the schemas, listener, and adapters.
    
    Throws:
    
    JAXBException
  - unmarshal
```
public Object unmarshal(Source source)
                 throws XmlMappingException
```
    Description copied from interface: Unmarshaller
    
    Unmarshal the given Source into an object graph.
    
    Specified by:
    
    unmarshal in interface Unmarshaller
    
    Parameters:
    
    source - the source to marshal from
    
    Returns:
    
    the object graph
    
    Throws:
    
    XmlMappingException - if the given source cannot be mapped to an object
  - unmarshal
```
public Object unmarshal(Source source,
                        @Nullable
                        MimeContainer mimeContainer)
                 throws XmlMappingException
```
    Description copied from interface: MimeUnmarshaller
    
    Unmarshals the given provided Source into an object graph, reading binary attachments from a MimeContainer.
    
    Specified by:
    
    unmarshal in interface MimeUnmarshaller
    
    Parameters:
    
    source - the source to marshal from
    
    mimeContainer - the MIME container to read extracted binary content from
    
    Returns:
    
    the object graph
    
    Throws:
    
    XmlMappingException - if the given source cannot be mapped to an object
  - unmarshalStaxSource
```
protected Object unmarshalStaxSource(Unmarshaller jaxbUnmarshaller,
                                     Source staxSource)
                              throws JAXBException
```
    Throws:
    
    JAXBException
  - createUnmarshaller
```
protected Unmarshaller createUnmarshaller()
```
    Return a newly created JAXB unmarshaller. Note: JAXB unmarshallers are not necessarily thread-safe.
  - initJaxbUnmarshaller
```
protected void initJaxbUnmarshaller(Unmarshaller unmarshaller)
                             throws JAXBException
```
    Template method that can be overridden by concrete JAXB marshallers for custom initialization behavior. Gets called after creation of JAXB Marshaller, and after the respective properties have been set.
    The default implementation sets the defined properties, the validation event handler, the schemas, listener, and adapters.
    
    Throws:
    
    JAXBException
  - convertJaxbException
```
protected XmlMappingException convertJaxbException(JAXBException ex)
```
    Convert the given JAXBException to an appropriate exception from the org.springframework.oxm hierarchy.
    
    Parameters:
    
    ex - JAXBException that occurred
    
    Returns:
    
    the corresponding XmlMappingException

Class Jaxb2Marshaller

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

logger

Constructor Detail

Jaxb2Marshaller

Method Detail

setContextPaths

setContextPath

getContextPath

setClassesToBeBound

getClassesToBeBound

setPackagesToScan

getPackagesToScan

setJaxbContextProperties

setMarshallerProperties

setUnmarshallerProperties

setMarshallerListener

setUnmarshallerListener

setValidationEventHandler

setAdapters

setSchema

setSchemas

setSchemaLanguage

setSchemaResourceResolver

setLazyInit

setMtomEnabled

setSupportJaxbElementClass

setCheckForXmlRootElement

setMappedClass

setSupportDtd

isSupportDtd

setProcessExternalEntities

isProcessExternalEntities

setBeanClassLoader

afterPropertiesSet

getJaxbContext

supports

supports

marshal

marshal

createMarshaller

initJaxbMarshaller

unmarshal

unmarshal

unmarshalStaxSource

createUnmarshaller

initJaxbUnmarshaller

convertJaxbException