XMLOutputFactory (Java EE 5 SDK)

javax.xml.stream Class XMLOutputFactory

java.lang.Object
  javax.xml.stream.XMLOutputFactory

public abstract class XMLOutputFactory

extends Object

Defines an abstract implementation of a factory for getting XMLEventWriters and XMLStreamWriters. The following table defines the standard properties of this specification. Each property varies in the level of support required by each implementation. The level of support required is described in the 'Required' column.

The following paragraphs describe the namespace and prefix repair algorithm:

The property can be set with the following code line: setProperty("javax.xml.stream.isRepairingNamespaces",new Boolean(true|false));

This property specifies that the writer default namespace prefix declarations. The default value is false.

If a writer isRepairingNamespaces it will create a namespace declaration on the current StartElement for any attribute that does not currently have a namespace declaration in scope. If the StartElement has a uri but no prefix specified a prefix will be assigned, if the prefix has not been declared in a parent of the current StartElement it will be declared on the current StartElement. If the defaultNamespace is bound and in scope and the default namespace matches the URI of the attribute or StartElement QName no prefix will be assigned.

If an element or attribute name has a prefix, but is not bound to any namespace URI, then the prefix will be removed during serialization.

If element and/or attribute names in the same start or empty-element tag are bound to different namespace URIs and are using the same prefix then the element or the first occurring attribute retains the original prefix and the following attributes have their prefixes replaced with a new prefix that is bound to the namespace URIs of those attributes.

If an element or attribute name uses a prefix that is bound to a different URI than that inherited from the namespace context of the parent of that element and there is no namespace declaration in the context of the current element then such a namespace declaration is added.

If an element or attribute name is bound to a prefix and there is a namespace declaration that binds that prefix to a different URI then that namespace declaration is either removed if the correct mapping is inherited from the parent context of that element, or changed to the namespace URI of the element or attribute using that prefix.

版本:

1.0

作者:

Copyright (c) 2003 by BEA Systems. All Rights Reserved.

另请参见:

XMLInputFactory, XMLEventWriter, XMLStreamWriter

IS_REPAIRING_NAMESPACES

public static final String IS_REPAIRING_NAMESPACES

Property used to set prefix defaulting on the output side

另请参见:

常量字段

XMLOutputFactory

protected XMLOutputFactory()

newInstance

public static XMLOutputFactory newInstance()
                                    throws FactoryConfigurationError

Create a new instance of the factory.

抛出异常:

FactoryConfigurationError - if an instance of this factory cannot be loaded

newInstance

public static XMLInputFactory newInstance(String factoryId,
                                          ClassLoader classLoader)
                                   throws FactoryConfigurationError

Create a new instance of the factory

参数:

factoryId - Name of the factory to find, same as a property name

classLoader - classLoader to use

返回:

the factory implementation

抛出异常:

FactoryConfigurationError - if an instance of this factory cannot be loaded

createXMLStreamWriter

public abstract XMLStreamWriter createXMLStreamWriter(Writer stream)
                                               throws XMLStreamException

Create a new XMLStreamWriter that writes to a writer

参数:

stream - the writer to write to

抛出异常:

XMLStreamException

createXMLStreamWriter

public abstract XMLStreamWriter createXMLStreamWriter(OutputStream stream)
                                               throws XMLStreamException

Create a new XMLStreamWriter that writes to a stream

参数:

stream - the stream to write to

抛出异常:

XMLStreamException

createXMLStreamWriter

public abstract XMLStreamWriter createXMLStreamWriter(OutputStream stream,
                                                      String encoding)
                                               throws XMLStreamException

Create a new XMLStreamWriter that writes to a stream

参数:

stream - the stream to write to

encoding - the encoding to use

抛出异常:

XMLStreamException

createXMLStreamWriter

public abstract XMLStreamWriter createXMLStreamWriter(Result result)
                                               throws XMLStreamException

Create a new XMLStreamWriter that writes to a JAXP result. This method is optional.

参数:

result - the result to write to

抛出异常:

UnsupportedOperationException - if this method is not supported by this XMLOutputFactory

XMLStreamException

createXMLEventWriter

public abstract XMLEventWriter createXMLEventWriter(Result result)
                                             throws XMLStreamException

Create a new XMLEventWriter that writes to a JAXP result. This method is optional.

参数:

result - the result to write to

抛出异常:

UnsupportedOperationException - if this method is not supported by this XMLOutputFactory

XMLStreamException

createXMLEventWriter

public abstract XMLEventWriter createXMLEventWriter(OutputStream stream)
                                             throws XMLStreamException

Create a new XMLEventWriter that writes to a stream

参数:

stream - the stream to write to

抛出异常:

XMLStreamException

createXMLEventWriter

public abstract XMLEventWriter createXMLEventWriter(OutputStream stream,
                                                    String encoding)
                                             throws XMLStreamException

Create a new XMLEventWriter that writes to a stream

参数:

stream - the stream to write to

encoding - the encoding to use

抛出异常:

XMLStreamException

createXMLEventWriter

public abstract XMLEventWriter createXMLEventWriter(Writer stream)
                                             throws XMLStreamException

Create a new XMLEventWriter that writes to a writer

参数:

stream - the stream to write to

抛出异常:

XMLStreamException

setProperty

public abstract void setProperty(String name,
                                 Object value)
                          throws IllegalArgumentException

Allows the user to set specific features/properties on the underlying implementation.

参数:

name - The name of the property

value - The value of the property

抛出异常:

IllegalArgumentException - if the property is not supported

getProperty

public abstract Object getProperty(String name)
                            throws IllegalArgumentException

Get a feature/property on the underlying implementation

参数:

name - The name of the property

返回:

The value of the property

抛出异常:

IllegalArgumentException - if the property is not supported

isPropertySupported

public abstract boolean isPropertySupported(String name)

Query the set of properties that this factory supports.

参数:

name - The name of the property (may not be null)

返回:

true if the property is supported and false otherwise

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