AbstractUnmarshallerImpl (Java EE 5)

java.lang.Object
  javax.xml.bind.helpers.AbstractUnmarshallerImpl

部分默认 Unmarshaller 实现。

此类提供 javax.xml.bind.Unmarshaller 接口的部分默认实现。

JAXB 提供者必须实现 5 个方法：getUnmarshallerHandler、unmarshal(Node)、unmarshal(XMLReader,InputSource)、unmarshal(XMLStreamReader) 和 unmarshal(XMLEventReader)。

version	en $Revision: 1.14 $ $Date: 2006/03/08 17:01:00 $
since	JAXB1.0
See also	javax.xml.bind.Unmarshaller

英文文档：

Partial default Unmarshaller implementation.

This class provides a partial default implementation for the Unmarshallerinterface.

A JAXB Provider has to implement five methods (getUnmarshallerHandler, unmarshal(Node), unmarshal(XMLReader,InputSource), unmarshal(XMLStreamReader), and unmarshal(XMLEventReader).

Since:

JAXB1.0

Version:

$Revision: 1.14 $ $Date: 2006/03/08 17:01:00 $

Author:

• Kohsuke Kawaguchi, Sun Microsystems, Inc.

See Also:

Unmarshaller

---

Nested Class Summary

 

Nested classes/interfaces inherited from interface javax.xml.bind.Unmarshaller
Unmarshaller.Listener

 

Field Summary
protected  boolean	validating           whether or not the unmarshaller will validate

 

Constructor Summary
AbstractUnmarshallerImpl()

 

Method Summary
protected  UnmarshalException	createUnmarshalException(SAXException e)           Creates an UnmarshalException from a SAXException.
<A extends XmlAdapter> A

getAdapter(Class<A> type)
          Gets the adapter associated with the specified type.  AttachmentUnmarshaller getAttachmentUnmarshaller()
             ValidationEventHandler getEventHandler()
          Return the current event handler or the default event handler if one hasn't been set.  Unmarshaller.Listener getListener()
          Return Unmarshaller.Listener registered with this Unmarshaller.  Object getProperty(String name)
          Default implementation of the getProperty method always throws PropertyException since there are no required properties.  Schema getSchema()
          Get the JAXP 1.3 Schema object being used to perform unmarshal-time validation. protected  XMLReader getXMLReader()
          Obtains a configured XMLReader.  boolean isValidating()
          Indicates whether or not the Unmarshaller is configured to validate during unmarshal operations. setAdapter(Class<A> type, A adapter)
          Associates a configured instance of XmlAdapter with this unmarshaller.  void setAdapter(XmlAdapter adapter)
          Associates a configured instance of XmlAdapter with this unmarshaller.  void setAttachmentUnmarshaller(AttachmentUnmarshaller au)
          Associate a context that resolves cid's, content-id URIs, to binary data passed as attachments.  void setEventHandler(ValidationEventHandler handler)
          Allow an application to register a validation event handler.  void setListener(Unmarshaller.Listener listener)
           Register unmarshal event callback Unmarshaller.Listener with this Unmarshaller.  void setProperty(String name, Object value)
          Default implementation of the setProperty method always throws PropertyException since there are no required properties.  void setSchema(Schema schema)
          Specify the JAXP 1.3 Schema object that should be used to validate subsequent unmarshal operations against.  void setValidating(boolean validating)
          Specifies whether or not the Unmarshaller should validate during unmarshal operations.  Object unmarshal(File f)
          Unmarshal XML data from the specified file and return the resulting content tree.  Object unmarshal(InputSource source)
          Unmarshal XML data from the specified SAX InputSource and return the resulting content tree.  Object unmarshal(InputStream is)
          Unmarshal XML data from the specified InputStream and return the resulting content tree. unmarshal(Node node, Class<T> expectedType)
          Unmarshal XML data by JAXB mapped declaredType and return the resulting content tree.  Object unmarshal(Reader reader)
          Unmarshal XML data from the specified Reader and return the resulting content tree.  Object unmarshal(Source source)
          Unmarshal XML data from the specified XML Source and return the resulting content tree. unmarshal(Source source, Class<T> expectedType)
          Unmarshal XML data from the specified XML Source by declaredType and return the resulting content tree.  Object unmarshal(URL url)
          Unmarshal XML data from the specified URL and return the resulting content tree.  Object unmarshal(XMLEventReader reader)
          Unmarshal XML data from the specified pull parser and return the resulting content tree. unmarshal(XMLEventReader reader, Class<T> expectedType)
          Unmarshal root element to JAXB mapped declaredType and return the resulting content tree. protected abstract  Object unmarshal(XMLReader reader, InputSource source)
          Unmarshals an object by using the specified XMLReader and the InputSource.  Object unmarshal(XMLStreamReader reader)
          Unmarshal XML data from the specified pull parser and return the resulting content tree. unmarshal(XMLStreamReader reader, Class<T> expectedType)
          Unmarshal root element to JAXB mapped declaredType and return the resulting content tree.  

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

 

Methods inherited from interface javax.xml.bind.Unmarshaller
getUnmarshallerHandler, unmarshal

 

Field Detail

英文文档：

validating

protected boolean validating

whether or not the unmarshaller will validate

Constructor Detail

public AbstractUnmarshallerImpl()

英文文档：

AbstractUnmarshallerImpl

public AbstractUnmarshallerImpl()

Method Detail

protected org.xml.sax.XMLReader getXMLReader() throws JAXBException
获取配置好的 XMLReader。 此方法在客户端指定的 SAXSource 对象没有 XMLReader 时使用。 Unmarshaller 不可重入，因此我们只能使用一个 XMLReader 实例。

英文文档：

getXMLReader

protected XMLReader getXMLReader()
                          throws JAXBException

Obtains a configured XMLReader. This method is used when the client-specified SAXSource object doesn't have XMLReader. Unmarshaller is not re-entrant, so we will only use one instance of XMLReader.

Throws:

JAXBException

---

public Object unmarshal(javax.xml.transform.Source source) throws JAXBException

英文文档：

unmarshal

public Object unmarshal(Source source)
                 throws JAXBException

Description copied from interface: Unmarshaller

Unmarshal XML data from the specified XML Source and return the resulting content tree.

Implements Unmarshal Global Root Element.

SAX 2.0 Parser Pluggability

A client application can choose not to use the default parser mechanism supplied with their JAXB provider. Any SAX 2.0 compliant parser can be substituted for the JAXB provider's default mechanism. To do so, the client application must properly configure a SAXSource containing an XMLReader implemented by the SAX 2.0 parser provider. If the XMLReader has an org.xml.sax.ErrorHandler registered on it, it will be replaced by the JAXB Provider so that validation errors can be reported via the ValidationEventHandler mechanism of JAXB. If the SAXSource does not contain an XMLReader, then the JAXB provider's default parser mechanism will be used.

This parser replacement mechanism can also be used to replace the JAXB provider's unmarshal-time validation engine. The client application must properly configure their SAX 2.0 compliant parser to perform validation (as shown in the example above). Any SAXParserExceptions encountered by the parser during the unmarshal operation will be processed by the JAXB provider and converted into JAXB ValidationEvent objects which will be reported back to the client via the ValidationEventHandler registered with the Unmarshaller. Note: specifying a substitute validating SAX 2.0 parser for unmarshalling does not necessarily replace the validation engine used by the JAXB provider for performing on-demand validation.

The only way for a client application to specify an alternate parser mechanism to be used during unmarshal is via the unmarshal(SAXSource) API. All other forms of the unmarshal method (File, URL, Node, etc) will use the JAXB provider's default parser and validator mechanisms.

Specified by:

unmarshal in interface Unmarshaller

Parameters:

source - the XML Source to unmarshal XML data from (providers are only required to support SAXSource, DOMSource, and StreamSource)

Returns:

the newly created root object of the java content tree

Throws:

JAXBException - If any unexpected errors occur while unmarshalling

UnmarshalException - If the ValidationEventHandler returns false from its handleEvent method or the Unmarshaller is unable to perform the XML to Java binding. See Unmarshalling XML Data

See Also:

Unmarshaller.unmarshal(javax.xml.transform.Source, Class)

---

abstract protected Object unmarshal(org.xml.sax.XMLReader reader, org.xml.sax.InputSource source) throws JAXBException
使用指定的 XMLReader 和 InputSource 解组对象。 被调用者应调用 XMLReader 的 setErrorHandler 方法，这样错误才能传递给客户端指定的 ValidationEventHandler。

英文文档：

unmarshal

protected abstract Object unmarshal(XMLReader reader,
                                    InputSource source)
                             throws JAXBException

Unmarshals an object by using the specified XMLReader and the InputSource. The callee should call the setErrorHandler method of the XMLReader so that errors are passed to the client-specified ValidationEventHandler.

Throws:

JAXBException

---

final public Object unmarshal(org.xml.sax.InputSource source) throws JAXBException

英文文档：

unmarshal

public final Object unmarshal(InputSource source)
                       throws JAXBException

Description copied from interface: Unmarshaller

Unmarshal XML data from the specified SAX InputSource and return the resulting content tree.

Implements Unmarshal Global Root Element.

Specified by:

unmarshal in interface Unmarshaller

Parameters:

source - the input source to unmarshal XML data from

Returns:

the newly created root object of the java content tree

Throws:

JAXBException - If any unexpected errors occur while unmarshalling

UnmarshalException - If the ValidationEventHandler returns false from its handleEvent method or the Unmarshaller is unable to perform the XML to Java binding. See Unmarshalling XML Data

---

final public Object unmarshal(java.net.URL url) throws JAXBException

英文文档：

unmarshal

public final Object unmarshal(URL url)
                       throws JAXBException

Description copied from interface: Unmarshaller

Unmarshal XML data from the specified URL and return the resulting content tree.

Implements Unmarshal Global Root Element.

Specified by:

unmarshal in interface Unmarshaller

Parameters:

url - the url to unmarshal XML data from

Returns:

the newly created root object of the java content tree

Throws:

JAXBException - If any unexpected errors occur while unmarshalling

UnmarshalException - If the ValidationEventHandler returns false from its handleEvent method or the Unmarshaller is unable to perform the XML to Java binding. See Unmarshalling XML Data

---

final public Object unmarshal(java.io.File f) throws JAXBException

英文文档：

unmarshal

public final Object unmarshal(File f)
                       throws JAXBException

Description copied from interface: Unmarshaller

Unmarshal XML data from the specified file and return the resulting content tree.

Implements Unmarshal Global Root Element.

Specified by:

unmarshal in interface Unmarshaller

Parameters:

f - the file to unmarshal XML data from

Returns:

the newly created root object of the java content tree

Throws:

JAXBException - If any unexpected errors occur while unmarshalling

UnmarshalException - If the ValidationEventHandler returns false from its handleEvent method or the Unmarshaller is unable to perform the XML to Java binding. See Unmarshalling XML Data

---

final public Object unmarshal(java.io.InputStream is) throws JAXBException

英文文档：

unmarshal

public final Object unmarshal(InputStream is)
                       throws JAXBException

Description copied from interface: Unmarshaller

Unmarshal XML data from the specified InputStream and return the resulting content tree. Validation event location information may be incomplete when using this form of the unmarshal API.

Implements Unmarshal Global Root Element.

Specified by:

unmarshal in interface Unmarshaller

Parameters:

is - the InputStream to unmarshal XML data from

Returns:

the newly created root object of the java content tree

Throws:

JAXBException - If any unexpected errors occur while unmarshalling

UnmarshalException - If the ValidationEventHandler returns false from its handleEvent method or the Unmarshaller is unable to perform the XML to Java binding. See Unmarshalling XML Data

---

final public Object unmarshal(java.io.Reader reader) throws JAXBException

英文文档：

unmarshal

public final Object unmarshal(Reader reader)
                       throws JAXBException

Description copied from interface: Unmarshaller

Unmarshal XML data from the specified Reader and return the resulting content tree. Validation event location information may be incomplete when using this form of the unmarshal API, because a Reader does not provide the system ID.

Implements Unmarshal Global Root Element.

Specified by:

unmarshal in interface Unmarshaller

Parameters:

reader - the Reader to unmarshal XML data from

Returns:

the newly created root object of the java content tree

Throws:

JAXBException - If any unexpected errors occur while unmarshalling

UnmarshalException - If the ValidationEventHandler returns false from its handleEvent method or the Unmarshaller is unable to perform the XML to Java binding. See Unmarshalling XML Data

---

public boolean isValidating() throws JAXBException
指示 Unmarshaller 是否被配置为在执行解组操作期间进行验证。

注： 为了与 JAXP 保持一致，我将该方法命名为 isValidating()，而不是 getValidating()。

return	如果 Unmarshaller 被配置为在执行解组操作期间进行验证，则返回 true，否则返回 false
Throws	JAXBException: 如果检索验证标志时发生错误

英文文档：

isValidating

public boolean isValidating()
                     throws JAXBException

Indicates whether or not the Unmarshaller is configured to validate during unmarshal operations.

Note: I named this method isValidating() to stay in-line with JAXP, as opposed to naming it getValidating().

Specified by:

isValidating in interface Unmarshaller

Returns:

true if the Unmarshaller is configured to validate during unmarshal operations, false otherwise

Throws:

JAXBException - if an error occurs while retrieving the validating flag

---

public void setEventHandler(ValidationEventHandler handler) throws JAXBException
允许应用程序注册一个验证事件处理程序。

如果在调用任一 unmarshal 方法期间发生验证错误，则 JAXB 提供者将调用验证事件处理程序。如果在调用解组方法之前客户端应用程序没有注册验证事件处理程序，那么将忽略所有验证事件，并有可能导致不可预料的行为。

handler	验证事件处理程序
Throws	JAXBException: 如果在设置事件处理程序时发生错误

英文文档：

setEventHandler

public void setEventHandler(ValidationEventHandler handler)
                     throws JAXBException

Allow an application to register a validation event handler.

The validation event handler will be called by the JAXB Provider if any validation errors are encountered during calls to any of the unmarshal methods. If the client application does not register a validation event handler before invoking the unmarshal methods, then all validation events will be silently ignored and may result in unexpected behaviour.

Specified by:

setEventHandler in interface Unmarshaller

Parameters:

handler - the validation event handler

Throws:

JAXBException - if an error was encountered while setting the event handler

---

public void setValidating(boolean validating) throws JAXBException
指定 Unmarshaller 是否应该在执行解组操作期间进行验证。默认情况下，Unmarshaller 不进行验证。

此方法仅在调用某一解组方法之前或之后调用。

validating	如果 Unmarshaller 应该在执行解组操作期间进行验证，则该参数为 true，否则为 false
Throws	JAXBException: 如果在执行解组操作期间启用或禁用验证时发生错误

英文文档：

setValidating

public void setValidating(boolean validating)
                   throws JAXBException

Specifies whether or not the Unmarshaller should validate during unmarshal operations. By default, the Unmarshaller does not validate.

This method may only be invoked before or after calling one of the unmarshal methods.

Specified by:

setValidating in interface Unmarshaller

Parameters:

validating - true if the Unmarshaller should validate during unmarshal, false otherwise

Throws:

JAXBException - if an error occurred while enabling or disabling validation at unmarshal time

---

public ValidationEventHandler getEventHandler() throws JAXBException
当前的事件处理程序；如果没有设置，则返回默认事件处理程序。

return	当前 ValidationEventHandler，如果没有设置该处理程序，则返回默认的事件处理程序
Throws	JAXBException: 如果获取当前事件处理程序时发生错误

英文文档：

getEventHandler

public ValidationEventHandler getEventHandler()
                                       throws JAXBException

Return the current event handler or the default event handler if one hasn't been set.

Specified by:

getEventHandler in interface Unmarshaller

Returns:

the current ValidationEventHandler or the default event handler if it hasn't been set

Throws:

JAXBException - if an error was encountered while getting the current event handler

---

protected UnmarshalException createUnmarshalException(org.xml.sax.SAXException e)
从 SAXException 创建 UnmarshalException。 这是一个为派生类提供的实用方法。

当提供者实现的 ContentHandler 希望抛出 JAXBException 时，它需要通过 SAXException 包装该异常。如果 unmarshaller 实现盲目地使用 JAXBException 包装 SAXException ，则异常将是用另一个 JAXBException 包装的 SAXException 包装的 JAXBException。这样做很不明智。

此方法检查 SAXException 的嵌套异常并可减少过多的包装。

return

得到的 UnmarshalException

英文文档：

createUnmarshalException

protected UnmarshalException createUnmarshalException(SAXException e)

Creates an UnmarshalException from a SAXException. This is an utility method provided for the derived classes.

When a provider-implemented ContentHandler wants to throw a JAXBException, it needs to wrap the exception by a SAXException. If the unmarshaller implementation blindly wrap SAXException by JAXBException, such an exception will be a JAXBException wrapped by a SAXException wrapped by another JAXBException. This is silly.

This method checks the nested exception of SAXException and reduce those excessive wrapping.

Returns:

the resulting UnmarshalException

---

public void setProperty(String name, Object value) throws PropertyException
由于没有必需的属性，setProperty 方法的默认实现总是抛出 PropertyException。如果提供商需要处理其他属性，则应该在派生类中重写此方法。

英文文档：

setProperty

public void setProperty(String name,
                        Object value)
                 throws PropertyException

Default implementation of the setProperty method always throws PropertyException since there are no required properties. If a provider needs to handle additional properties, it should override this method in a derived class.

Specified by:

setProperty in interface Unmarshaller

Parameters:

name - the name of the property to be set. This value can either be specified using one of the constant fields or a user supplied string.

value - the value of the property to be set

Throws:

PropertyException - when there is an error processing the given property or value

---

public Object getProperty(String name) throws PropertyException
由于没有必需的属性，getProperty 方法的默认实现总是抛出 PropertyException。如果提供者需要处理其他属性，则应该在派生类中重写此方法。

英文文档：

getProperty

public Object getProperty(String name)
                   throws PropertyException

Default implementation of the getProperty method always throws PropertyException since there are no required properties. If a provider needs to handle additional properties, it should override this method in a derived class.

Specified by:

getProperty in interface Unmarshaller

Parameters:

name - the name of the property to retrieve

Returns:

the value of the requested property

Throws:

PropertyException - when there is an error retrieving the given property or value property name

---

public Object unmarshal(XMLEventReader reader) throws JAXBException

英文文档：

unmarshal

public Object unmarshal(XMLEventReader reader)
                 throws JAXBException

Description copied from interface: Unmarshaller

Unmarshal XML data from the specified pull parser and return the resulting content tree.

This method is an Unmarshal Global Root method.

This method assumes that the parser is on a START_DOCUMENT or START_ELEMENT event. Unmarshalling will be done from this start event to the corresponding end event. If this method returns successfully, the reader will be pointing at the token right after the end event.

Specified by:

unmarshal in interface Unmarshaller

Parameters:

reader - The parser to be read.

Returns:

the newly created root object of the java content tree.

Throws:

JAXBException - If any unexpected errors occur while unmarshalling

UnmarshalException - If the ValidationEventHandler returns false from its handleEvent method or the Unmarshaller is unable to perform the XML to Java binding. See Unmarshalling XML Data

See Also:

Unmarshaller.unmarshal(javax.xml.stream.XMLEventReader, Class)

---

public Object unmarshal(XMLStreamReader reader) throws JAXBException

英文文档：

unmarshal

public Object unmarshal(XMLStreamReader reader)
                 throws JAXBException

Description copied from interface: Unmarshaller

Unmarshal XML data from the specified pull parser and return the resulting content tree.

Implements Unmarshal Global Root Element.

This method assumes that the parser is on a START_DOCUMENT or START_ELEMENT event. Unmarshalling will be done from this start event to the corresponding end event. If this method returns successfully, the reader will be pointing at the token right after the end event.

Specified by:

unmarshal in interface Unmarshaller

Parameters:

reader - The parser to be read.

Returns:

the newly created root object of the java content tree.

Throws:

JAXBException - If any unexpected errors occur while unmarshalling

UnmarshalException - If the ValidationEventHandler returns false from its handleEvent method or the Unmarshaller is unable to perform the XML to Java binding. See Unmarshalling XML Data

See Also:

Unmarshaller.unmarshal(javax.xml.stream.XMLStreamReader, Class)

---

英文文档：

unmarshal

public <T> JAXBElement<T> unmarshal(Node node,
                                    Class<T> expectedType)
                         throws JAXBException

Description copied from interface: Unmarshaller

Unmarshal XML data by JAXB mapped declaredType and return the resulting content tree.

Implements Unmarshal by Declared Type

Specified by:

unmarshal in interface Unmarshaller

Parameters:

node - the document/element to unmarshal XML data from. The caller must support at least Document and Element.

expectedType - appropriate JAXB mapped class to hold node's XML data.

Returns:

JAXB Element representation of node

Throws:

JAXBException - If any unexpected errors occur while unmarshalling

UnmarshalException - If the ValidationEventHandler returns false from its handleEvent method or the Unmarshaller is unable to perform the XML to Java binding. See Unmarshalling XML Data

---

英文文档：

unmarshal

public <T> JAXBElement<T> unmarshal(Source source,
                                    Class<T> expectedType)
                         throws JAXBException

Description copied from interface: Unmarshaller

Unmarshal XML data from the specified XML Source by declaredType and return the resulting content tree.

Implements Unmarshal by Declared Type

See SAX 2.0 Parser Pluggability

Specified by:

unmarshal in interface Unmarshaller

Parameters:

source - the XML Source to unmarshal XML data from (providers are only required to support SAXSource, DOMSource, and StreamSource)

expectedType - appropriate JAXB mapped class to hold source's xml root element

Returns:

Java content rooted by JAXB Element

Throws:

JAXBException - If any unexpected errors occur while unmarshalling

UnmarshalException - If the ValidationEventHandler returns false from its handleEvent method or the Unmarshaller is unable to perform the XML to Java binding. See Unmarshalling XML Data

---

英文文档：

unmarshal

public <T> JAXBElement<T> unmarshal(XMLStreamReader reader,
                                    Class<T> expectedType)
                         throws JAXBException

Description copied from interface: Unmarshaller

Unmarshal root element to JAXB mapped declaredType and return the resulting content tree.

This method implements unmarshal by declaredType.

This method assumes that the parser is on a START_DOCUMENT or START_ELEMENT event. Unmarshalling will be done from this start event to the corresponding end event. If this method returns successfully, the reader will be pointing at the token right after the end event.

Specified by:

unmarshal in interface Unmarshaller

Parameters:

reader - The parser to be read.

expectedType - appropriate JAXB mapped class to hold reader's START_ELEMENT XML data.

Returns:

content tree rooted by JAXB Element representation

Throws:

JAXBException - If any unexpected errors occur while unmarshalling

UnmarshalException - If the ValidationEventHandler returns false from its handleEvent method or the Unmarshaller is unable to perform the XML to Java binding. See Unmarshalling XML Data

---

英文文档：

unmarshal

public <T> JAXBElement<T> unmarshal(XMLEventReader reader,
                                    Class<T> expectedType)
                         throws JAXBException

Description copied from interface: Unmarshaller

Unmarshal root element to JAXB mapped declaredType and return the resulting content tree.

This method implements unmarshal by declaredType.

This method assumes that the parser is on a START_DOCUMENT or START_ELEMENT event. Unmarshalling will be done from this start event to the corresponding end event. If this method returns successfully, the reader will be pointing at the token right after the end event.

Specified by:

unmarshal in interface Unmarshaller

Parameters:

reader - The parser to be read.

expectedType - appropriate JAXB mapped class to hold reader's START_ELEMENT XML data.

Returns:

content tree rooted by JAXB Element representation

Throws:

JAXBException - If any unexpected errors occur while unmarshalling

UnmarshalException - If the ValidationEventHandler returns false from its handleEvent method or the Unmarshaller is unable to perform the XML to Java binding. See Unmarshalling XML Data

---

public void setSchema(javax.xml.validation.Schema schema)

英文文档：

setSchema

public void setSchema(Schema schema)

Description copied from interface: Unmarshaller

Specify the JAXP 1.3 Schema object that should be used to validate subsequent unmarshal operations against. Passing null into this method will disable validation.

This method replaces the deprecated setValidating(boolean) API.

Initially this property is set to null.

Specified by:

setSchema in interface Unmarshaller

Parameters:

schema - Schema object to validate unmarshal operations against or null to disable validation

---

public javax.xml.validation.Schema getSchema()

英文文档：

getSchema

public Schema getSchema()

Description copied from interface: Unmarshaller

Get the JAXP 1.3 Schema object being used to perform unmarshal-time validation. If there is no Schema set on the unmarshaller, then this method will return null indicating that unmarshal-time validation will not be performed.

This method provides replacement functionality for the deprecated Unmarshaller.isValidating() API as well as access to the Schema object. To determine if the Unmarshaller has validation enabled, simply test the return type for null:

boolean isValidating = u.getSchema()!=null;

Specified by:

getSchema in interface Unmarshaller

Returns:

the Schema object being used to perform unmarshal-time validation or null if not present

---

public void setAdapter(">XmlAdapter adapter)

英文文档：

setAdapter

public void setAdapter(XmlAdapter adapter)

Description copied from interface: Unmarshaller

Associates a configured instance of XmlAdapter with this unmarshaller.

This is a convenience method that invokes setAdapter(adapter.getClass(),adapter);.

Specified by:

setAdapter in interface Unmarshaller

See Also:

Unmarshaller.setAdapter(Class,XmlAdapter)

---

英文文档：

setAdapter

public <A extends XmlAdapter> void setAdapter(Class<A> type,
                                              A adapter)

Description copied from interface: Unmarshaller

Associates a configured instance of XmlAdapter with this unmarshaller.

Every unmarshaller internally maintains a Map<Class,XmlAdapter>, which it uses for unmarshalling classes whose fields/methods are annotated with XmlJavaTypeAdapter.

This method allows applications to use a configured instance of XmlAdapter. When an instance of an adapter is not given, an unmarshaller will create one by invoking its default constructor.

Specified by:

setAdapter in interface Unmarshaller

Parameters:

type - The type of the adapter. The specified instance will be used when XmlJavaTypeAdapter.value() refers to this type.

adapter - The instance of the adapter to be used. If null, it will un-register the current adapter set for this type.

---

英文文档：

getAdapter

public <A extends XmlAdapter> A getAdapter(Class<A> type)

Description copied from interface: Unmarshaller

Gets the adapter associated with the specified type. This is the reverse operation of the Unmarshaller.setAdapter(javax.xml.bind.annotation.adapters.XmlAdapter) method.

Specified by:

getAdapter in interface Unmarshaller

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public void setAttachmentUnmarshaller(AttachmentUnmarshaller au)

英文文档：

setAttachmentUnmarshaller

public void setAttachmentUnmarshaller(AttachmentUnmarshaller au)

Description copied from interface: Unmarshaller

Associate a context that resolves cid's, content-id URIs, to binary data passed as attachments.

Unmarshal time validation, enabled via Unmarshaller.setSchema(Schema), must be supported even when unmarshaller is performing XOP processing.

Specified by:

setAttachmentUnmarshaller in interface Unmarshaller

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public AttachmentUnmarshaller getAttachmentUnmarshaller()

英文文档：

getAttachmentUnmarshaller

public AttachmentUnmarshaller getAttachmentUnmarshaller()

Specified by:

getAttachmentUnmarshaller in interface Unmarshaller

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public void setListener(Unmarshaller.Listener listener)

英文文档：

setListener

public void setListener(Unmarshaller.Listener listener)

Description copied from interface: Unmarshaller

Register unmarshal event callback Unmarshaller.Listener with this Unmarshaller.

There is only one Listener per Unmarshaller. Setting a Listener replaces the previous set Listener. One can unregister current Listener by setting listener to null.

Specified by:

setListener in interface Unmarshaller

Parameters:

listener - provides unmarshal event callbacks for this Unmarshaller

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public Unmarshaller.Listener getListener()

英文文档：

getListener

public Unmarshaller.Listener getListener()

Description copied from interface: Unmarshaller

Return Unmarshaller.Listener registered with this Unmarshaller.

Specified by:

getListener in interface Unmarshaller

Returns:

registered Unmarshaller.Listener or null if no Listener is registered with this Unmarshaller.

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