net.dpml.lang
Class Resource

java.lang.Object
  net.dpml.lang.Part
      net.dpml.lang.Resource

public class Resource
extends Part

Resource part strategy implementation datatype.

Version:

1.1.0

Author:

Digital Product Meta Library

Field Summary

Fields inherited from class net.dpml.lang.Part

PART_FOOTER, PART_HEADER, PART_SCHEMA_URN, VALUE_ENCODER, XML_HEADER

Constructor Summary

Resource(Logger logger, Info info, Classpath classpath, String urn, String path)
Creation of resource datatype.

Method Summary

protected void	encodeStrategy(Writer writer, String pad) Encode the resource strategy to XML.
boolean	equals(Object other) Test if this instance is equal to the supplied instance.
protected Object	getContent(Class c) Return the part content or null if the result type is unresolvable relative to the supplied classes argument.
String	getPath() Get the resource path.
String	getURN() Get the resource urn.
int	hashCode() Get the hashcode for this instance.
Object	instantiate(Object[] args) Instantiate a value.

Methods inherited from class net.dpml.lang.Part

encode, getClassLoader, getClasspath, getContent, getContent, getInfo, getLogger, load, load

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Resource

public Resource(Logger logger,
                Info info,
                Classpath classpath,
                String urn,
                String path)
         throws IOException

Creation of resource datatype.

Parameters:

logger - the assigned logging channel

info - the part info descriptor

classpath - the part classpath descriptor

urn - the resource urn

path - the resource path

Throws:

IOException - if an I/O error occurs

Method Detail

getContent

protected Object getContent(Class c)
                     throws IOException

Return the part content or null if the result type is unresolvable relative to the supplied classes argument. Class arguments recognized over an above plugin include the URL and String classes. If the URL class is supplied a URL referencing the resource identified by path is returned. If a String is requested the urn value is returned.

Overrides:

getContent in class Part

Parameters:

c - the content class

Returns:

the content

Throws:

IOException - if an IO error occurs

getURN

public String getURN()

Get the resource urn.

Returns:

the urn

getPath

public String getPath()

Get the resource path.

Returns:

the path

instantiate

public Object instantiate(Object[] args)
                   throws Exception

Instantiate a value.

Specified by:

instantiate in class Part

Parameters:

args - supplimentary arguments

Returns:

the resolved instance

Throws:

Exception - if a deployment error occurs

encodeStrategy

protected void encodeStrategy(Writer writer,
                              String pad)
                       throws IOException

Encode the resource strategy to XML.

Specified by:

encodeStrategy in class Part

Parameters:

writer - the output stream writer

pad - the character offset

Throws:

IOException - if an I/O error occurs

equals

public boolean equals(Object other)

Test if this instance is equal to the supplied instance.

Overrides:

equals in class Part

Parameters:

other - the supplied instance

Returns:

the equality status

hashCode

public int hashCode()

Get the hashcode for this instance.

Overrides:

hashCode in class Part

Returns:

the hash value