org.jdom

Class ProcessingInstruction

public class ProcessingInstruction extends Content

An XML processing instruction. Methods allow the user to obtain the target of the PI as well as its data. The data can always be accessed as a String or, if the data appears akin to an attribute list, can be retrieved as name/value pairs.

Version: $Revision: 1.46 $, $Date: 2004/02/27 11:32:57 $

Author: Brett McLaughlin Jason Hunter Steven Gould

Field Summary
protected Map	mapData The data for the PI in name/value pairs
protected String	rawData The data for the PI as a String
protected String	target The target of the PI

Constructor Summary
protected	ProcessingInstruction() Default, no-args constructor for implementations to use if needed.
	ProcessingInstruction(String target, Map data) This will create a new `ProcessingInstruction` with the specified target and data.
	ProcessingInstruction(String target, String data) This will create a new `ProcessingInstruction` with the specified target and data.

Method Summary
Object	clone() This will return a clone of this `ProcessingInstruction`.
String	getData() This will return the raw data from all instructions.
List	getPseudoAttributeNames() This will return a `List` containing the names of the "attribute" style pieces of name/value pairs in this PI's data.
String	getPseudoAttributeValue(String name) This will return the value for a specific name/value pair on the PI.
String	getTarget() This will retrieve the target of the PI.
String	getValue() Returns the XPath 1.0 string value of this element, which is the data of this PI.
boolean	removePseudoAttribute(String name) This will remove the pseudo attribute with the specified name.
ProcessingInstruction	setData(String data) This will set the raw data for the PI.
ProcessingInstruction	setData(Map data) This will set the name/value pairs within the passed `Map` as the pairs for the data of this PI.
ProcessingInstruction	setPseudoAttribute(String name, String value) This will set a pseudo attribute with the given name and value.
ProcessingInstruction	setTarget(String newTarget) This will set the target for the PI.
String	toString() This returns a `String` representation of the `ProcessingInstruction`, suitable for debugging.

Field Detail

mapData

protected Map mapData

The data for the PI in name/value pairs

rawData

protected String rawData

The data for the PI as a String

target

protected String target

The target of the PI

Constructor Detail

ProcessingInstruction

protected ProcessingInstruction()

Default, no-args constructor for implementations to use if needed.

ProcessingInstruction

public ProcessingInstruction(String target, Map data)

This will create a new ProcessingInstruction with the specified target and data.

Parameters: target String target of PI. data Map data for PI, in name/value pairs

Throws: IllegalTargetException if the given target is illegal as a processing instruction name.

ProcessingInstruction

public ProcessingInstruction(String target, String data)

This will create a new ProcessingInstruction with the specified target and data.

Parameters: target String target of PI. data String data for PI.

Throws: IllegalTargetException if the given target is illegal as a processing instruction name.

Method Detail

clone

public Object clone()

This will return a clone of this ProcessingInstruction.

Returns: Object - clone of this ProcessingInstruction.

getData

public String getData()

This will return the raw data from all instructions.

Returns: String - data of PI.

getPseudoAttributeNames

public List getPseudoAttributeNames()

This will return a List containing the names of the "attribute" style pieces of name/value pairs in this PI's data.

Returns: List - the List containing the "attribute" names.

getPseudoAttributeValue

public String getPseudoAttributeValue(String name)

This will return the value for a specific name/value pair on the PI. If no such pair is found for this PI, null is returned.

Parameters: name String name of name/value pair to lookup value for.

Returns: String - value of name/value pair.

getTarget

public String getTarget()

This will retrieve the target of the PI.

Returns: String - target of PI.

getValue

public String getValue()

Returns the XPath 1.0 string value of this element, which is the data of this PI.

Returns: the data of this PI

removePseudoAttribute

public boolean removePseudoAttribute(String name)

This will remove the pseudo attribute with the specified name.

Parameters: name name of pseudo attribute to remove

Returns: boolean - whether the requested instruction was removed.

setData

public ProcessingInstruction setData(String data)

This will set the raw data for the PI.

Parameters: data String data of PI.

Returns: ProcessingInstruction - this PI modified.

setData

public ProcessingInstruction setData(Map data)

This will set the name/value pairs within the passed Map as the pairs for the data of this PI. The keys should be the pair name and the values should be the pair values.

Parameters: data new map data to use

Returns: ProcessingInstruction - modified PI.

setPseudoAttribute

public ProcessingInstruction setPseudoAttribute(String name, String value)

This will set a pseudo attribute with the given name and value. If the PI data is not already in a pseudo-attribute format, this will replace the existing data.

Parameters: name String name of pair. value String value for pair.

Returns: ProcessingInstruction this PI modified.

setTarget

public ProcessingInstruction setTarget(String newTarget)

This will set the target for the PI.

Parameters: newTarget String new target of PI.

Returns: ProcessingInstruction - this PI modified.

toString

public String toString()

This returns a String representation of the ProcessingInstruction, suitable for debugging. If the XML representation of the ProcessingInstruction is desired, outputString should be used.

Returns: String - information about the ProcessingInstruction