play.utils
类 Java

java.lang.Object
  play.utils.Java

public class Java
extends java.lang.Object

Java utils

嵌套类摘要

static class

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

字段摘要

protected static play.utils.JavaWithCaching	_javaWithCaching
protected static java.lang.Object	_javaWithCachingLock
protected static ApplicationClassloaderState	_lastKnownApplicationClassloaderState

构造方法摘要

Java()

方法摘要

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

从类 java.lang.Object 继承的方法

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

字段详细信息

_javaWithCaching

protected static play.utils.JavaWithCaching _javaWithCaching

_lastKnownApplicationClassloaderState

protected static ApplicationClassloaderState _lastKnownApplicationClassloaderState

_javaWithCachingLock

protected static java.lang.Object _javaWithCachingLock

构造方法详细信息

Java

public Java()

方法详细信息

getJavaWithCaching

protected static play.utils.JavaWithCaching getJavaWithCaching()

extractInfosFromByteCode

public static java.lang.String[] extractInfosFromByteCode(byte[] code)

extractUnderlyingCallable

public static java.lang.Object extractUnderlyingCallable(java.util.concurrent.FutureTask<?> futureTask)

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

findActionMethod

public static java.lang.reflect.Method findActionMethod(java.lang.String name,
                                                        java.lang.Class clazz)

Find the first public static method of a controller class

参数：

name - The method name

clazz - The class

返回：

The method or null

invokeStatic

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

Invoke a static method

参数：

clazz - The class

method - The method name

返回：

The result

抛出：

java.lang.Exception

invokeStatic

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

抛出：

java.lang.Exception

invokeStatic

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

Invoke a static method with args

参数：

clazz - The class

method - The method name

args - Arguments

返回：

The result

抛出：

java.lang.Exception

invokeStaticOrParent

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

抛出：

java.lang.Exception

invokeChildOrStatic

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

抛出：

java.lang.Exception

invokeStatic

public static java.lang.Object invokeStatic(java.lang.reflect.Method method,
                                            java.util.Map<java.lang.String,java.lang.String[]> args)
                                     throws java.lang.Exception

抛出：

java.lang.Exception

invokeStatic

public static java.lang.Object invokeStatic(java.lang.reflect.Method method,
                                            java.lang.Object[] args)
                                     throws java.lang.Exception

抛出：

java.lang.Exception

parameterNames

public static java.lang.String[] parameterNames(java.lang.reflect.Method method)
                                         throws java.lang.Exception

Retrieve parameter names of a method

抛出：

java.lang.Exception

rawMethodSignature

public static java.lang.String rawMethodSignature(java.lang.reflect.Method method)

rawJavaType

public static java.lang.String rawJavaType(java.lang.Class clazz)

findAllAnnotatedMethods

public static java.util.List<java.lang.reflect.Method> findAllAnnotatedMethods(java.lang.Class<?> clazz,
                                                                               java.lang.Class<? extends java.lang.annotation.Annotation> annotationType)

Find all annotated method from a class

参数：

clazz - The class

annotationType - The annotation class

返回：

A list of method object

findAllAnnotatedMethods

public static java.util.List<java.lang.reflect.Method> findAllAnnotatedMethods(java.util.List<java.lang.Class> classes,
                                                                               java.lang.Class<? extends java.lang.annotation.Annotation> annotationType)

Find all annotated method from a class

参数：

classes - The classes

annotationType - The annotation class

返回：

A list of method object

findAllFields

public static void findAllFields(java.lang.Class clazz,
                                 java.util.Set<java.lang.reflect.Field> found)

getFieldWrapper

public static Java.FieldWrapper getFieldWrapper(java.lang.reflect.Field field)

serialize

public static byte[] serialize(java.lang.Object o)
                        throws java.lang.Exception

抛出：

java.lang.Exception

deserialize

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

抛出：

java.lang.Exception