com.thoughtworks.xstream.io

Interface HierarchicalStreamWriter

All Known Subinterfaces:

DocumentWriter, ExtendedHierarchicalStreamWriter

All Known Implementing Classes:

AbstractDocumentWriter, AbstractJsonWriter, AbstractWriter, AbstractXmlWriter, BinaryStreamWriter, CompactWriter, Dom4JWriter, Dom4JXmlWriter, DomWriter, JDom2Writer, JDomWriter, JettisonStaxWriter, JsonHierarchicalStreamWriter, JsonWriter, PathTrackingWriter, PrettyPrintWriter, SaxWriter, StatefulWriter, StaxWriter, WriterWrapper, XomWriter, XppDomWriter

public interface HierarchicalStreamWriter

Author:

Joe Walnes

Method Summary

Modifier and Type	Method and Description
void	addAttribute(String name, String value)
void	close() Close the writer, if necessary.
void	endNode()
void	flush() Flush the writer, if necessary.
void	setValue(String text) Write the value (text content) of the current node.
void	startNode(String name)
HierarchicalStreamWriter	underlyingWriter() Return the underlying HierarchicalStreamWriter implementation.

Method Detail

startNode

void startNode(String name)

addAttribute

void addAttribute(String name,
                  String value)

setValue

void setValue(String text)

Write the value (text content) of the current node.

endNode

void endNode()

flush

void flush()

Flush the writer, if necessary.

close

void close()

Close the writer, if necessary.

underlyingWriter

HierarchicalStreamWriter underlyingWriter()

Return the underlying HierarchicalStreamWriter implementation.

If a Converter needs to access methods of a specific HierarchicalStreamWriter implementation that are not defined in the HierarchicalStreamWriter interface, it should call this method before casting. This is because the writer passed to the Converter is often wrapped/decorated by another implementation to provide additional functionality (such as XPath tracking).

For example:

MySpecificWriter mySpecificWriter = (MySpecificWriter)writer; // INCORRECT!
 mySpecificWriter.doSomethingSpecific();

MySpecificWriter mySpecificWriter = (MySpecificWriter)writer.underlyingWriter();  // CORRECT!
 mySpecificWriter.doSomethingSpecific();

Implementations of HierarchicalStreamWriter should return 'this', unless they are a decorator, in which case they should delegate to whatever they are wrapping.