Package org.apache.tools.ant.taskdefs

Class Definer

java.lang.Object

org.apache.tools.ant.ProjectComponent

org.apache.tools.ant.Task

org.apache.tools.ant.taskdefs.AntlibDefinition

org.apache.tools.ant.taskdefs.DefBase

org.apache.tools.ant.taskdefs.Definer

All Implemented Interfaces:

Cloneable

Direct Known Subclasses:

Componentdef, Typedef

public abstract class Definer
extends DefBase

Base class for Taskdef and Typedef - handles all the attributes for Typedef. The uri and class handling is handled by DefBase

Since:

Ant 1.4

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Definer.Format	Enumerated type for format attribute
static class	Definer.OnError	Enumerated type for onError attribute

Field Summary

Fields inherited from class org.apache.tools.ant.Task

target, taskName, taskType, wrapper

Fields inherited from class org.apache.tools.ant.ProjectComponent

description, location, project

Constructor Summary

Constructors

Constructor	Description
Definer()

Method Summary

Modifier and Type	Method	Description
protected void	addDefinition(ClassLoader al, String name, String classname)	Add a definition using the attributes of Definer
void	execute()	Run the definition.
String	getClassname()	Returns the classname of the object we are defining.
File	getFile()
String	getName()
String	getResource()
protected void	loadProperties(ClassLoader al, URL url)	Load type definitions as properties from a URL.
static String	makeResourceFromURI(String uri)	This is where the logic to map from a URI to an antlib resource is kept.
void	setAdapter(String adapter)	Set the class name of the adapter class.
protected void	setAdapterClass(Class<?> adapterClass)	Set the adapter class.
void	setAdaptTo(String adaptTo)	Set the classname of the class that the definition must be compatible with, either directly or by use of the adapter class.
protected void	setAdaptToClass(Class<?> adaptToClass)	Set the class for adaptToClass, to be used by derived classes, used instead of the adaptTo attribute.
void	setAntlib(String antlib)	Antlib attribute, sets resource and uri.
void	setClassname(String classname)	The full class name of the object being defined.
void	setFile(File file)	Name of the property file to load ant name/classname pairs from.
void	setFormat(Definer.Format format)	Sets the format of the file or resource
void	setName(String name)	Name of the definition
void	setOnError(Definer.OnError onError)	What to do if there is an error in loading the class.
void	setResource(String res)	Name of the property resource to load ant name/classname pairs from.
protected void	setRestrict(boolean restrict)	The restrict attribute.

Methods inherited from class org.apache.tools.ant.taskdefs.DefBase

createClasspath, createLoader, getClasspath, getClasspathId, getLoaderId, hasCpDelegate, init, isReverseLoader, setClasspath, setClasspathRef, setLoaderRef, setReverseLoader

Methods inherited from class org.apache.tools.ant.taskdefs.AntlibDefinition

getAntlibClassLoader, getURI, setAntlibClassLoader, setURI

Methods inherited from class org.apache.tools.ant.Task

bindToOwner, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, getTaskType, getWrapper, handleErrorFlush, handleErrorOutput, handleFlush, handleInput, handleOutput, isInvalid, log, log, log, log, maybeConfigure, perform, reconfigure, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName, setTaskType

Methods inherited from class org.apache.tools.ant.ProjectComponent

clone, getDescription, getLocation, getProject, setDescription, setLocation, setProject

Methods inherited from class java.lang.Object

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

Constructor Details

Definer

public Definer()

Method Details

setRestrict

protected void setRestrict(boolean restrict)

The restrict attribute. If this is true, only use this definition in add(X).

Parameters:

restrict - the value to set.

setOnError

public void setOnError(Definer.OnError onError)

What to do if there is an error in loading the class.

• error - throw build exception
• report - output at warning level
• ignore - output at debug level

Parameters:

onError - an OnError value

setFormat

public void setFormat(Definer.Format format)

Sets the format of the file or resource

Parameters:

format - the enumerated value - xml or properties

getName

public String getName()

Returns:

the name for this definition

getFile

public File getFile()

Returns:

the file containing definitions

getResource

public String getResource()

Returns:

the resource containing definitions

execute

public void execute()
             throws BuildException

Run the definition.

Overrides:

execute in class Task

Throws:

BuildException - if an error occurs

makeResourceFromURI

public static String makeResourceFromURI(String uri)

This is where the logic to map from a URI to an antlib resource is kept.

Parameters:

uri - the xml namespace uri that to convert.

Returns:

the name of a resource. It may not exist

loadProperties

protected void loadProperties(ClassLoader al,
 URL url)

Load type definitions as properties from a URL.

Parameters:

al - the classloader to use

url - the url to get the definitions from

setFile

public void setFile(File file)

Name of the property file to load ant name/classname pairs from.

Parameters:

file - the file

setResource

public void setResource(String res)

Name of the property resource to load ant name/classname pairs from.

Parameters:

res - the resource to use

setAntlib

public void setAntlib(String antlib)

Antlib attribute, sets resource and uri. uri is set the antlib value and, resource is set to the antlib.xml resource in the classpath. For example antlib="antlib:org.acme.bland.cola" corresponds to uri="antlib:org.acme.bland.cola" resource="org/acme/bland/cola/antlib.xml". ASF Bugzilla Bug 31999

Parameters:

antlib - the value to set.

setName

public void setName(String name)

Name of the definition

Parameters:

name - the name of the definition

getClassname

public String getClassname()

Returns the classname of the object we are defining. May be null.

Returns:

the class name

setClassname

public void setClassname(String classname)

The full class name of the object being defined. Required, unless file or resource have been specified.

Parameters:

classname - the name of the class

setAdapter

public void setAdapter(String adapter)

Set the class name of the adapter class. An adapter class is used to proxy the definition class. It is used if the definition class is not assignable to the adaptto class, or if the adaptto class is not present.

Parameters:

adapter - the name of the adapter class

setAdapterClass

protected void setAdapterClass(Class<?> adapterClass)

Set the adapter class.

Parameters:

adapterClass - the class to use to adapt the definition class

setAdaptTo

public void setAdaptTo(String adaptTo)

Set the classname of the class that the definition must be compatible with, either directly or by use of the adapter class.

Parameters:

adaptTo - the name of the adaptto class

setAdaptToClass

protected void setAdaptToClass(Class<?> adaptToClass)

Set the class for adaptToClass, to be used by derived classes, used instead of the adaptTo attribute.

Parameters:

adaptToClass - the class for adaptor.

addDefinition

protected void addDefinition(ClassLoader al,
 String name,
 String classname)
                      throws BuildException

Add a definition using the attributes of Definer

Parameters:

al - the ClassLoader to use

name - the name of the definition

classname - the classname of the definition

Throws:

BuildException - if an error occurs