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com.newstep.solid.util

Class XMLBeanDecoder

public class XMLBeanDecoder

Utility to parse an xml based bean stream.
It uses the JavaBean getter/setter reflection
strategy to populate an object as long as the appropriate
methods have been defined, and the xml document has
the appropriate meta-information about populating said
JavaBean.

The bean class must conform to the JavaBean specification
specfically methods that "getField" is associated with the
the field "field". Similarly for set. The modifier MUST be
public. The bean must have a default (no-parameter) constructor.
See XMLBeanEncoder for a description
of the document schema that is acceptable.

This implementation uses DOM but may move to SAX. However, greatest
performance hit is reflecting the data into the bean.

This Decoder is not thread safe.

Author:

msimonsen

Links:

Kernel Association Association Link

to Interface XMLBeanExceptionHandler

Associates type:

association

Client cardinality:

Client navigability:

NOT NAVIGABLE

Client visibility:

private

Supplier cardinality:

Supplier navigability:

NAVIGABLE

Supplier visibility:

private

Nested Class Summary
class	XMLBeanDecoder.LoggerExHandler

Field Summary
private XMLBeanExceptionHandler	exHandler
Logger	logger
private InputStream	stream

Constructor Summary
public void	XMLBeanDecoder(InputStream stream, XMLBeanExceptionHandler handler)
public void	XMLBeanDecoder(InputStream stream)

Method Summary
private Object	castToPrimitive(String type, String value)
public Object	decode()
private String	getPrimitiveValue(Element ele)
public ActionOnException	handle(Exception e)
private void	setAttribute(Object obj, String name, String type, Object value)
private void	setPrimitive(Element ele, Object parentObj)
private Object	unmarshal(Element node)
private void	unmarshal(Element node, Object parentObj)
private Object	unmarshalArray(Element ele)
private Collection	unmarshalCollection(Element node, Object parentObj, Collection col)

Field Detail

exHandler

private XMLBeanExceptionHandler exHandler

Multiplicity:

stream

private InputStream stream

Multiplicity:

Constructor Detail

XMLBeanDecoder

public void XMLBeanDecoder (InputStream stream, XMLBeanExceptionHandler handler)

Stereotype:

create

XMLBeanDecoder

public void XMLBeanDecoder (InputStream stream)

Stereotype:

create

Method Detail

castToPrimitive

private Object castToPrimitive (String type, String value)

decode

public Object decode ()

getPrimitiveValue

private String getPrimitiveValue (Element ele)

setAttribute

private void setAttribute (Object obj, String name, String type, Object value)

Throws:

IllegalAccessException

setPrimitive

private void setPrimitive (Element ele, Object parentObj)

Throws:

IllegalAccessException

unmarshal

private void unmarshal (Element node, Object parentObj)

Throws:

InstantiationException,IllegalAccessException

unmarshal

private Object unmarshal (Element node)

Throws:

InstantiationException,IllegalAccessException

unmarshalArray

private Object unmarshalArray (Element ele)

Throws:

InstantiationException,IllegalAccessException

unmarshalCollection

private Collection unmarshalCollection (Element node, Object parentObj, Collection col)

Throws:

InstantiationException,IllegalAccessException

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