org.apache.tapestry5.ioc.internal.services
Class ClassFabImpl

java.lang.Object
  org.apache.tapestry5.ioc.internal.services.AbstractFab
      org.apache.tapestry5.ioc.internal.services.ClassFabImpl

All Implemented Interfaces:

ClassFab

public class ClassFabImpl
extends AbstractFab
implements ClassFab

Implementation of ClassFab. Hides, as much as possible, the underlying library (Javassist).

Field Summary

Fields inherited from class org.apache.tapestry5.ioc.internal.services.AbstractFab

lock

Constructor Summary

ClassFabImpl(CtClassSource source, javassist.CtClass ctClass, org.slf4j.Logger logger)

Method Summary

void	addConstructor(Class[] parameterTypes, Class[] exceptions, String body) Adds a constructor to the class.
void	addField(String name, Class type) Adds a new field with the given name and type.
void	addField(String name, int modifiers, Class type) Adds a new field with the provided modifiers.
void	addMethod(int modifiers, MethodSignature ms, String body) Adds a method.
void	addNoOpMethod(MethodSignature signature) Adds a public no-op method.
void	addToString(String toString) Adds an implementation of toString, as a method that returns a fixed string.
void	copyClassAnnotationsFromDelegate(Class delegateClass) Copies annotations from delegate class to the fabricated class.
void	copyMethodAnnotationsFromDelegate(Class serviceInterface, Class delegateClass) Copies method annotations from delegate class to the methods of the fabricated class.
void	proxyMethodsToDelegate(Class serviceInterface, String delegateExpression, String toString) Makes the fabricated class implement the provided service interface.
String	toString() Returns a representation of the fabricated class, including inheritance, fields, constructors, methods and method bodies.

Methods inherited from class org.apache.tapestry5.ioc.internal.services.AbstractFab

addInterface, createClass, getCtClass, getLogger, getSource, toCtClass, toCtClasses

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.tapestry5.ioc.services.ClassFab

addInterface, createClass

Constructor Detail

ClassFabImpl

public ClassFabImpl(CtClassSource source,
                    javassist.CtClass ctClass,
                    org.slf4j.Logger logger)

Method Detail

toString

public String toString()

Returns a representation of the fabricated class, including inheritance, fields, constructors, methods and method bodies.

Overrides:

toString in class Object

addField

public void addField(String name,
                     Class type)

Description copied from interface: ClassFab

Adds a new field with the given name and type. The field is added as a private field.

Specified by:

addField in interface ClassFab

addField

public void addField(String name,
                     int modifiers,
                     Class type)

Description copied from interface: ClassFab

Adds a new field with the provided modifiers.

Specified by:

addField in interface ClassFab

proxyMethodsToDelegate

public void proxyMethodsToDelegate(Class serviceInterface,
                                   String delegateExpression,
                                   String toString)

Description copied from interface: ClassFab

Makes the fabricated class implement the provided service interface. The interface will be added, and all methods in the interface will be delegate wrappers. If toString() is not part of the delegate interface, then an implementation will be supplied that returns the provided string. This method is used when creating objects that proxy their behavior to some other object.

Specified by:

proxyMethodsToDelegate in interface ClassFab

Parameters:

serviceInterface - the interface to implement

delegateExpression - the expression used to find the delegate on which methods should be invoked. Typically a field name, such as "_delegate", or a method to invoke, such as "_service()".

toString - fixed value to be returned as the description of the resultant object

addToString

public void addToString(String toString)

Description copied from interface: ClassFab

Adds an implementation of toString, as a method that returns a fixed string.

Specified by:

addToString in interface ClassFab

addMethod

public void addMethod(int modifiers,
                      MethodSignature ms,
                      String body)

Description copied from interface: ClassFab

Adds a method. The method is a public instance method.

Specified by:

addMethod in interface ClassFab

Parameters:

modifiers - Modifiers for the method (see Modifier).

ms - defines the name, return type, parameters and exceptions thrown

body - The body of the method.

addNoOpMethod

public void addNoOpMethod(MethodSignature signature)

Description copied from interface: ClassFab

Adds a public no-op method. The method will return null, false, or zero as per the return type (if not void).

Specified by:

addNoOpMethod in interface ClassFab

addConstructor

public void addConstructor(Class[] parameterTypes,
                           Class[] exceptions,
                           String body)

Description copied from interface: ClassFab

Adds a constructor to the class. The constructor will be public.

Specified by:

addConstructor in interface ClassFab

Parameters:

parameterTypes - the type of each parameter, or null if the constructor takes no parameters.

exceptions - the type of each exception, or null if the constructor throws no exceptions.

body - The body of the constructor.

copyClassAnnotationsFromDelegate

public void copyClassAnnotationsFromDelegate(Class delegateClass)

Description copied from interface: ClassFab

Copies annotations from delegate class to the fabricated class.

Specified by:

copyClassAnnotationsFromDelegate in interface ClassFab

Parameters:

delegateClass - class of the delegate

copyMethodAnnotationsFromDelegate

public void copyMethodAnnotationsFromDelegate(Class serviceInterface,
                                              Class delegateClass)

Description copied from interface: ClassFab

Copies method annotations from delegate class to the methods of the fabricated class.

Specified by:

copyMethodAnnotationsFromDelegate in interface ClassFab

Parameters:

serviceInterface - service interface

delegateClass - class of the delegate