io.ebean.enhance.common

Class DetectEnhancement

java.lang.Object

io.ebean.enhance.asm.ClassVisitor

io.ebean.enhance.common.DetectEnhancement

public class DetectEnhancement
extends ClassVisitor

ClassAdapter used to detect if this class needs enhancement for entity or transactional support.

Constructor Summary

Constructors

Constructor and Description
DetectEnhancement(ClassLoader classLoader, EnhanceContext context)

Method Summary

Modifier and Type	Method and Description
boolean	isEnhancedEntity()
boolean	isEnhancedTransactional()
boolean	isEntity() Return true if this is an entity bean or embeddable bean.
boolean	isTransactional() Return true if ANY method has the transactional annotation.
void	log(int level, String msg)
void	visit(int version, int access, String name, String signature, String superName, String[] interfaces) Visit the class with interfaces.
AnnotationVisitor	visitAnnotation(String desc, boolean visible) Visit class level annotations.
MethodVisitor	visitMethod(int access, String name, String desc, String signature, String[] exceptions) Visit the methods specifically looking for method level transactional annotations.

Methods inherited from class io.ebean.enhance.asm.ClassVisitor

visitAttribute, visitEnd, visitField, visitInnerClass, visitModule, visitNestHost, visitNestMember, visitOuterClass, visitSource, visitTypeAnnotation

Methods inherited from class java.lang.Object

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

Constructor Detail

DetectEnhancement

public DetectEnhancement(ClassLoader classLoader,
                         EnhanceContext context)

Method Detail

log

public void log(int level,
                String msg)

isEnhancedEntity

public boolean isEnhancedEntity()

isEnhancedTransactional

public boolean isEnhancedTransactional()

isEntity

public boolean isEntity()

Return true if this is an entity bean or embeddable bean.

isTransactional

public boolean isTransactional()

Return true if ANY method has the transactional annotation.

visit

public void visit(int version,
                  int access,
                  String name,
                  String signature,
                  String superName,
                  String[] interfaces)

Visit the class with interfaces.

Overrides:

visit in class ClassVisitor

Parameters:

version - the class version. The minor version is stored in the 16 most significant bits, and the major version in the 16 least significant bits.

access - the class's access flags (see Opcodes). This parameter also indicates if the class is deprecated.

name - the internal name of the class (see Type.getInternalName()).

signature - the signature of this class. May be null if the class is not a generic one, and does not extend or implement generic classes or interfaces.

superName - the internal of name of the super class (see Type.getInternalName()). For interfaces, the super class is Object. May be null, but only for the Object class.

interfaces - the internal names of the class's interfaces (see Type.getInternalName()). May be null.

visitAnnotation

public AnnotationVisitor visitAnnotation(String desc,
                                         boolean visible)

Visit class level annotations.

Overrides:

visitAnnotation in class ClassVisitor

Parameters:

desc - the class descriptor of the annotation class.

visible - true if the annotation is visible at runtime.

Returns:

a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.

visitMethod

public MethodVisitor visitMethod(int access,
                                 String name,
                                 String desc,
                                 String signature,
                                 String[] exceptions)

Visit the methods specifically looking for method level transactional annotations.

Overrides:

visitMethod in class ClassVisitor

Parameters:

access - the method's access flags (see Opcodes). This parameter also indicates if the method is synthetic and/or deprecated.

name - the method's name.

desc - the method's descriptor (see Type).

signature - the method's signature. May be null if the method parameters, return type and exceptions do not use generic types.

exceptions - the internal names of the method's exception classes (see Type.getInternalName()). May be null.

Returns:

an object to visit the byte code of the method, or null if this class visitor is not interested in visiting the code of this method.