com.izforge.izpack.util.file.types.selectors

Class ExtendSelector

java.lang.Object

com.izforge.izpack.util.file.types.DataType

com.izforge.izpack.util.file.types.selectors.BaseSelector

com.izforge.izpack.util.file.types.selectors.ExtendSelector

All Implemented Interfaces:

FileSelector

public class ExtendSelector
extends BaseSelector

Selector that selects files by forwarding the request on to other classes.

Constructor Summary

Constructors

Constructor and Description
ExtendSelector() Default constructor.

Method Summary

Modifier and Type	Method and Description
void	addParam(Parameter p) Create new parameters to pass to custom selector.
Path	createClasspath() Specify the classpath to use to load the Selector (nested element).
Path	getClasspath() Get the classpath
boolean	isSelected(InstallData idata, File basedir, String filename, File file) Allows the custom selector to choose whether to select a file.
void	selectorCreate() Instantiates the identified custom selector class.
void	setClassname(String classname) Sets the classname of the custom selector.
void	setClasspath(Path classpath) Set the classpath to load the classname specified using an attribute.
void	verifySettings() These are errors specific to ExtendSelector only.

Methods inherited from class com.izforge.izpack.util.file.types.selectors.BaseSelector

getError, setError, validate

Methods inherited from class com.izforge.izpack.util.file.types.DataType

getDescription, isChecked, noChildrenAllowed, setChecked, setDescription, tooManyAttributes

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtendSelector

public ExtendSelector()

Default constructor.

Method Detail

setClassname

public void setClassname(String classname)

Sets the classname of the custom selector.

Parameters:

classname - is the class which implements this selector

selectorCreate

public void selectorCreate()

Instantiates the identified custom selector class.

addParam

public void addParam(Parameter p)

Create new parameters to pass to custom selector.

Parameters:

p - The new Parameter object

setClasspath

public final void setClasspath(Path classpath)
                        throws Exception

Set the classpath to load the classname specified using an attribute.

Parameters:

classpath - the classpath to use

Throws:

Exception

createClasspath

public final Path createClasspath()
                           throws Exception

Specify the classpath to use to load the Selector (nested element).

Returns:

a classpath to be configured

Throws:

Exception

getClasspath

public final Path getClasspath()

Get the classpath

Returns:

the classpath

verifySettings

public void verifySettings()

These are errors specific to ExtendSelector only. If there are errors in the custom selector, it should throw a BuildException when isSelected() is called.

Overrides:

verifySettings in class BaseSelector

isSelected

public boolean isSelected(InstallData idata,
                          File basedir,
                          String filename,
                          File file)
                   throws Exception

Allows the custom selector to choose whether to select a file. This is also where the Parameters are passed to the custom selector, since we know we must have them all by now. And since we must know both classpath and classname, creating the class is deferred to here as well.

Specified by:

isSelected in interface FileSelector

Specified by:

isSelected in class BaseSelector

basedir - A java.io.File object for the base directory

filename - The name of the file to check

file - A File object for this filename

Returns:

whether the file should be selected or not

Throws:

Exception - if an error occurs