play.utils

Class Java

java.lang.Object

play.utils.Java

public class Java
extends Object

Java utils

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Java.FieldWrapper Field accessor set and get value for a property, using the getter/setter when it exists or direct access otherwise.

Field Summary

Fields

Modifier and Type	Field and Description
protected static play.utils.JavaWithCaching	_javaWithCaching
protected static ApplicationClassloaderState	_lastKnownApplicationClassloaderState

Constructor Summary

Constructors

Constructor and Description
Java()

Method Summary

Modifier and Type	Method and Description
static Object	deserialize(byte[] b)
static String[]	extractInfosFromByteCode(byte[] code)
static Object	extractUnderlyingCallable(FutureTask<?> futureTask) Try to discover what is hidden under a FutureTask (hack)
static List<Method>	findAllAnnotatedMethods(Class<?> clazz, Class<? extends Annotation> annotationType) Find all annotated method from a class
static List<Method>	findAllAnnotatedMethods(List<Class> classes, Class<? extends Annotation> annotationType) Find all annotated method from a class
static void	findAllFields(Class clazz, Set<Field> found)
static Java.FieldWrapper	getFieldWrapper(Field field)
protected static play.utils.JavaWithCaching	getJavaWithCaching()
static Object	invokeChildOrStatic(Class<?> clazz, String method, Object... args)
static Object	invokeStatic(Class<?> clazz, String method) Invoke a static method
static Object	invokeStatic(Class<?> clazz, String method, Object... args) Invoke a static method with args
static Object	invokeStatic(Method method, Map<String,String[]> args)
static Object	invokeStatic(Method method, Object[] args)
static Object	invokeStatic(String clazz, String method)
static Object	invokeStaticOrParent(Class<?> clazz, String method, Object... args)
static String[]	parameterNames(Method method) Retrieve parameter names of a method
static String	rawJavaType(Class clazz)
static String	rawMethodSignature(Method method)
static byte[]	serialize(Object o)

Methods inherited from class java.lang.Object

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

Field Detail

_javaWithCaching

protected static play.utils.JavaWithCaching _javaWithCaching

_lastKnownApplicationClassloaderState

protected static ApplicationClassloaderState _lastKnownApplicationClassloaderState

Constructor Detail

Java

public Java()

Method Detail

getJavaWithCaching

protected static play.utils.JavaWithCaching getJavaWithCaching()

extractInfosFromByteCode

public static String[] extractInfosFromByteCode(byte[] code)

extractUnderlyingCallable

public static Object extractUnderlyingCallable(FutureTask<?> futureTask)

Try to discover what is hidden under a FutureTask (hack)

invokeStatic

public static Object invokeStatic(Class<?> clazz,
                                  String method)
                           throws Exception

Invoke a static method

Parameters:

clazz - The class

method - The method name

Returns:

The result

Throws:

Exception

invokeStatic

public static Object invokeStatic(String clazz,
                                  String method)
                           throws Exception

Throws:

Exception

invokeStatic

public static Object invokeStatic(Class<?> clazz,
                                  String method,
                                  Object... args)
                           throws Exception

Invoke a static method with args

Parameters:

clazz - The class

method - The method name

args - Arguments

Returns:

The result

Throws:

Exception

invokeStaticOrParent

public static Object invokeStaticOrParent(Class<?> clazz,
                                          String method,
                                          Object... args)
                                   throws Exception

Throws:

Exception

invokeChildOrStatic

public static Object invokeChildOrStatic(Class<?> clazz,
                                         String method,
                                         Object... args)
                                  throws Exception

Throws:

Exception

invokeStatic

public static Object invokeStatic(Method method,
                                  Map<String,String[]> args)
                           throws Exception

Throws:

Exception

invokeStatic

public static Object invokeStatic(Method method,
                                  Object[] args)
                           throws Exception

Throws:

Exception

parameterNames

public static String[] parameterNames(Method method)
                               throws Exception

Retrieve parameter names of a method

Throws:

Exception

rawMethodSignature

public static String rawMethodSignature(Method method)

rawJavaType

public static String rawJavaType(Class clazz)

findAllAnnotatedMethods

public static List<Method> findAllAnnotatedMethods(Class<?> clazz,
                                                   Class<? extends Annotation> annotationType)

Find all annotated method from a class

Parameters:

clazz - The class

annotationType - The annotation class

Returns:

A list of method object

findAllAnnotatedMethods

public static List<Method> findAllAnnotatedMethods(List<Class> classes,
                                                   Class<? extends Annotation> annotationType)

Find all annotated method from a class

Parameters:

classes - The classes

annotationType - The annotation class

Returns:

A list of method object

findAllFields

public static void findAllFields(Class clazz,
                                 Set<Field> found)

getFieldWrapper

public static Java.FieldWrapper getFieldWrapper(Field field)

serialize

public static byte[] serialize(Object o)
                        throws IOException

Throws:

IOException

deserialize

public static Object deserialize(byte[] b)
                          throws Exception

Throws:

Exception