play.classloading.enhancers
Class Enhancer

java.lang.Object
  play.classloading.enhancers.Enhancer

Direct Known Subclasses:

ContinuationEnhancer, ControllersEnhancer, JPAEnhancer, LocalvariablesNamesEnhancer, MailerEnhancer, PropertiesEnhancer, SigEnhancer

public abstract class Enhancer
extends java.lang.Object

Enhancer support

classPool

protected javassist.ClassPool classPool

Enhancer

public Enhancer()

newClassPool

public static javassist.ClassPool newClassPool()

makeClass

public javassist.CtClass makeClass(ApplicationClasses.ApplicationClass applicationClass)
                            throws java.io.IOException

Construct a javassist CtClass from an application class.

Throws:

java.io.IOException

enhanceThisClass

public abstract void enhanceThisClass(ApplicationClasses.ApplicationClass applicationClass)
                               throws java.lang.Exception

The magic happen here...

Throws:

java.lang.Exception

hasAnnotation

protected boolean hasAnnotation(javassist.CtClass ctClass,
                                java.lang.String annotation)
                         throws java.lang.ClassNotFoundException

Test if a class has the provided annotation

Parameters:

ctClass - the javassist class representation

annotation - fully qualified name of the annotation class eg."javax.persistence.Entity"

Returns:

true if class has the annotation

Throws:

java.lang.ClassNotFoundException

hasAnnotation

protected boolean hasAnnotation(javassist.CtField ctField,
                                java.lang.String annotation)
                         throws java.lang.ClassNotFoundException

Test if a field has the provided annotation

Parameters:

ctField - the javassist field representation

annotation - fully qualified name of the annotation class eg."javax.persistence.Entity"

Returns:

true if field has the annotation

Throws:

java.lang.ClassNotFoundException

hasAnnotation

protected boolean hasAnnotation(javassist.CtMethod ctMethod,
                                java.lang.String annotation)
                         throws java.lang.ClassNotFoundException

Test if a method has the provided annotation

Parameters:

ctMethod - the javassist method representation

annotation - fully qualified name of the annotation class eg."javax.persistence.Entity"

Returns:

true if field has the annotation

Throws:

java.lang.ClassNotFoundException

createAnnotation

protected static void createAnnotation(javassist.bytecode.AnnotationsAttribute attribute,
                                       java.lang.Class<? extends java.lang.annotation.Annotation> annotationType,
                                       java.util.Map<java.lang.String,javassist.bytecode.annotation.MemberValue> members)

Create a new annotation to be dynamically inserted in the byte code.

createAnnotation

protected static void createAnnotation(javassist.bytecode.AnnotationsAttribute attribute,
                                       java.lang.Class<? extends java.lang.annotation.Annotation> annotationType)

Create a new annotation to be dynamically inserted in the byte code.

getAnnotations

protected static javassist.bytecode.AnnotationsAttribute getAnnotations(javassist.CtClass ctClass)

Retrieve all class annotations.

getAnnotations

protected static javassist.bytecode.AnnotationsAttribute getAnnotations(javassist.CtField ctField)

Retrieve all field annotations.

getAnnotations

protected static javassist.bytecode.AnnotationsAttribute getAnnotations(javassist.CtMethod ctMethod)

Retrieve all method annotations.