org.dbflute.util

クラス DfReflectionUtil

java.lang.Object

org.dbflute.util.DfReflectionUtil

public class DfReflectionUtil
extends Object

作成者:

modified by jflute (originated in Seasar2)

ネストされたクラスのサマリー

ネストされたクラス

修飾子とタイプ	クラスと説明
static class	DfReflectionUtil.ReflectionFailureException
static class	DfReflectionUtil.VisibilityType

コンストラクタのサマリー

コンストラクタ

コンストラクタと説明
DfReflectionUtil()

メソッドのサマリー

修飾子とタイプ	メソッドと説明
protected static void	assertObjectNotNull(String variableName, Object value) Assert that the object is not null.
static void	assertStringNotNullAndNotTrimmedEmpty(String variableName, String value) Assert that the entity is not null and not trimmed empty.
protected static Method	doFindMethodBasic(Class<?> clazz, String methodName, Class<?>[] argTypes, DfReflectionUtil.VisibilityType visibilityType)
protected static Method	doFindMethodFlexibly(Class<?> clazz, String methodName, Class<?>[] argTypes, DfReflectionUtil.VisibilityType visibilityType)
protected static Field	findField(Class<?> clazz, String fieldName, DfReflectionUtil.VisibilityType visibilityType)
protected static Method	findMethod(Class<?> clazz, String methodName, Class<?>[] argTypes, DfReflectionUtil.VisibilityType visibilityType, boolean flexibly)
static Class<?>	forName(String className)
static Field	getAccessibleField(Class<?> clazz, String fieldName)
static Method	getAccessibleMethod(Class<?> clazz, String methodName, Class<?>[] argTypes) Get the accessible method that means as follows: o target class's methods = all o superclass's methods = public or protected
static Method	getAccessibleMethodFlexibly(Class<?> clazz, String methodName, Class<?>[] argTypes) Get the accessible method that means as follows: o target class's methods = all o superclass's methods = public or protected And it has the flexibly searching so you can specify types of sub-class to argTypes.
static Constructor<?>	getConstructor(Class<?> clazz, Class<?>[] argTypes)
protected static Type	getGenericParameter(Type type, int index)
protected static List<Type>	getGenericParameterList(Type type)
static Class<?>	getGenericType(Type type)
static Class<?>	getPrimitiveClass(Class<?> clazz)
static Class<?>	getPrimitiveClassIfWrapper(Class<?> clazz)
static Field	getPublicField(Class<?> clazz, String fieldName)
static Method	getPublicMethod(Class<?> clazz, String methodName, Class<?>[] argTypes) Get the public method.
static Method	getPublicMethodFlexibly(Class<?> clazz, String methodName, Class<?>[] argTypes) Get the public method.
protected static Class<?>	getRawClass(Type type)
static Object	getValue(Field field, Object target)
static Object	getValueForcedly(Field field, Object target)
static Field	getWholeField(Class<?> clazz, String fieldName)
static Method	getWholeMethod(Class<?> clazz, String methodName, Class<?>[] argTypes) Get the method in whole methods that means as follows: o target class's methods = all o superclass's methods = all (also contains private) And no cache so you should cache it yourself if you call several times.
static Method	getWholeMethodFlexibly(Class<?> clazz, String methodName, Class<?>[] argTypes) Get the method in whole methods that means as follows: o target class's methods = all o superclass's methods = all (also contains private) And it has the flexibly searching so you can specify types of sub-class to argTypes.
static Class<?>	getWrapperClass(Class<?> clazz)
static Object	invoke(Method method, Object target, Object[] args) Invoke the method by reflection.
static Object	invokeForcedly(Method method, Object target, Object[] args)
static Object	invokeStatic(Method method, Object[] args)
static boolean	isAssignableFrom(Class<?> toClass, Class<?> fromClass)
static boolean	isBridgeMethod(Method method)
protected static boolean	isDefaultOrPrivate(int modifier)
static boolean	isInstanceFinalField(Field field)
static boolean	isInstanceVariableField(Field field)
protected static boolean	isOutOfTargetForAccessible(DfReflectionUtil.VisibilityType visibilityType, int modifier, Class<?> clazz, Class<?> target)
protected static boolean	isOutOfTargetForPublic(DfReflectionUtil.VisibilityType visibilityType, int modifier)
static boolean	isPublic(int modifier)
static boolean	isPublicField(Field field)
static boolean	isPublicMethod(Method method)
static boolean	isStatic(int modifier)
static boolean	isStaticFinalField(Field field)
static boolean	isStaticVariableField(Field field)
static boolean	isSyntheticMethod(Method method)
protected static boolean	isTypeOf(Type type, Class<?> clazz)
static Object	newInstance(Class<?> clazz)
static Object	newInstance(Constructor<?> constructor, Object[] args)
static void	setValue(Field field, Object target, Object value)
static void	setValueForcedly(Field field, Object target, Object value)

クラスから継承されたメソッド java.lang.Object

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

コンストラクタの詳細

DfReflectionUtil

public DfReflectionUtil()

メソッドの詳細

forName

public static Class<?> forName(String className)

newInstance

public static Object newInstance(Class<?> clazz)

getConstructor

public static Constructor<?> getConstructor(Class<?> clazz,
                                            Class<?>[] argTypes)

newInstance

public static Object newInstance(Constructor<?> constructor,
                                 Object[] args)

isAssignableFrom

public static boolean isAssignableFrom(Class<?> toClass,
                                       Class<?> fromClass)

getPrimitiveClass

public static Class<?> getPrimitiveClass(Class<?> clazz)

getPrimitiveClassIfWrapper

public static Class<?> getPrimitiveClassIfWrapper(Class<?> clazz)

getWrapperClass

public static Class<?> getWrapperClass(Class<?> clazz)

getAccessibleField

public static Field getAccessibleField(Class<?> clazz,
                                       String fieldName)

getPublicField

public static Field getPublicField(Class<?> clazz,
                                   String fieldName)

getWholeField

public static Field getWholeField(Class<?> clazz,
                                  String fieldName)

findField

protected static Field findField(Class<?> clazz,
                                 String fieldName,
                                 DfReflectionUtil.VisibilityType visibilityType)

getValue

public static Object getValue(Field field,
                              Object target)

getValueForcedly

public static Object getValueForcedly(Field field,
                                      Object target)

setValue

public static void setValue(Field field,
                            Object target,
                            Object value)

setValueForcedly

public static void setValueForcedly(Field field,
                                    Object target,
                                    Object value)

isStaticFinalField

public static boolean isStaticFinalField(Field field)

isStaticVariableField

public static boolean isStaticVariableField(Field field)

isInstanceFinalField

public static boolean isInstanceFinalField(Field field)

isInstanceVariableField

public static boolean isInstanceVariableField(Field field)

isPublicField

public static boolean isPublicField(Field field)

getAccessibleMethod

public static Method getAccessibleMethod(Class<?> clazz,
                                         String methodName,
                                         Class<?>[] argTypes)

Get the accessible method that means as follows:

 o target class's methods = all
 o superclass's methods   = public or protected
 

パラメータ:

clazz - The type of class that defines the method. (NotNull)

methodName - The name of method. (NotNull)

argTypes - The type of argument. (NotNull)

戻り値:

The instance of method. (NullAllowed: if null, not found)

getAccessibleMethodFlexibly

public static Method getAccessibleMethodFlexibly(Class<?> clazz,
                                                 String methodName,
                                                 Class<?>[] argTypes)

Get the accessible method that means as follows:

 o target class's methods = all
 o superclass's methods   = public or protected
 

And it has the flexibly searching so you can specify types of sub-class to argTypes. But if overload methods exist, it returns the first-found method.

パラメータ:

clazz - The type of class that defines the method. (NotNull)

methodName - The name of method. (NotNull)

argTypes - The type of argument. (NotNull)

戻り値:

The instance of method. (NullAllowed: if null, not found)

getPublicMethod

public static Method getPublicMethod(Class<?> clazz,
                                     String methodName,
                                     Class<?>[] argTypes)

Get the public method.

パラメータ:

clazz - The type of class that defines the method. (NotNull)

methodName - The name of method. (NotNull)

argTypes - The type of argument. (NotNull)

戻り値:

The instance of method. (NullAllowed: if null, not found)

getPublicMethodFlexibly

public static Method getPublicMethodFlexibly(Class<?> clazz,
                                             String methodName,
                                             Class<?>[] argTypes)

Get the public method.
And it has the flexibly searching so you can specify types of sub-class to argTypes.
But if overload methods exist, it returns the first-found method.
And no cache so you should cache it yourself if you call several times.

パラメータ:

clazz - The type of class that defines the method. (NotNull)

methodName - The name of method. (NotNull)

argTypes - The type of argument. (NotNull)

戻り値:

The instance of method. (NullAllowed: if null, not found)

getWholeMethod

public static Method getWholeMethod(Class<?> clazz,
                                    String methodName,
                                    Class<?>[] argTypes)

Get the method in whole methods that means as follows:

 o target class's methods = all
 o superclass's methods   = all (also contains private)
 

And no cache so you should cache it yourself if you call several times.

パラメータ:

clazz - The type of class that defines the method. (NotNull)

methodName - The name of method. (NotNull)

argTypes - The type of argument. (NotNull)

戻り値:

The instance of method. (NullAllowed: if null, not found)

getWholeMethodFlexibly

public static Method getWholeMethodFlexibly(Class<?> clazz,
                                            String methodName,
                                            Class<?>[] argTypes)

Get the method in whole methods that means as follows:

 o target class's methods = all
 o superclass's methods   = all (also contains private)
 

And it has the flexibly searching so you can specify types of sub-class to argTypes.
But if overload methods exist, it returns the first-found method.
And no cache so you should cache it yourself if you call several times.

パラメータ:

clazz - The type of class that defines the method. (NotNull)

methodName - The name of method. (NotNull)

argTypes - The type of argument. (NotNull)

戻り値:

The instance of method. (NullAllowed: if null, not found)

findMethod

protected static Method findMethod(Class<?> clazz,
                                   String methodName,
                                   Class<?>[] argTypes,
                                   DfReflectionUtil.VisibilityType visibilityType,
                                   boolean flexibly)

doFindMethodBasic

protected static Method doFindMethodBasic(Class<?> clazz,
                                          String methodName,
                                          Class<?>[] argTypes,
                                          DfReflectionUtil.VisibilityType visibilityType)

doFindMethodFlexibly

protected static Method doFindMethodFlexibly(Class<?> clazz,
                                             String methodName,
                                             Class<?>[] argTypes,
                                             DfReflectionUtil.VisibilityType visibilityType)

isOutOfTargetForPublic

protected static boolean isOutOfTargetForPublic(DfReflectionUtil.VisibilityType visibilityType,
                                                int modifier)

isOutOfTargetForAccessible

protected static boolean isOutOfTargetForAccessible(DfReflectionUtil.VisibilityType visibilityType,
                                                    int modifier,
                                                    Class<?> clazz,
                                                    Class<?> target)

invoke

public static Object invoke(Method method,
                            Object target,
                            Object[] args)

Invoke the method by reflection.

パラメータ:

method - The instance of method. (NotNull)

target - The invocation target instance. (NullAllowed: if null, it means static method)

args - The array of arguments. (NullAllowed)

戻り値:

The return value of the method. (NullAllowed)

例外:

DfReflectionUtil.ReflectionFailureException - When invocation failure and illegal access

invokeForcedly

public static Object invokeForcedly(Method method,
                                    Object target,
                                    Object[] args)

invokeStatic

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

isPublicMethod

public static boolean isPublicMethod(Method method)

isBridgeMethod

public static boolean isBridgeMethod(Method method)

isSyntheticMethod

public static boolean isSyntheticMethod(Method method)

isPublic

public static boolean isPublic(int modifier)

isDefaultOrPrivate

protected static boolean isDefaultOrPrivate(int modifier)

isStatic

public static boolean isStatic(int modifier)

getGenericType

public static Class<?> getGenericType(Type type)

isTypeOf

protected static boolean isTypeOf(Type type,
                                  Class<?> clazz)

getRawClass

protected static Class<?> getRawClass(Type type)

getGenericParameter

protected static Type getGenericParameter(Type type,
                                          int index)

getGenericParameterList

protected static List<Type> getGenericParameterList(Type type)

assertObjectNotNull

protected static void assertObjectNotNull(String variableName,
                                          Object value)

Assert that the object is not null.

パラメータ:

variableName - The check name of variable for message. (NotNull)

value - The checked value. (NotNull)

例外:

IllegalArgumentException - When the argument is null.

assertStringNotNullAndNotTrimmedEmpty

public static void assertStringNotNullAndNotTrimmedEmpty(String variableName,
                                                         String value)

Assert that the entity is not null and not trimmed empty.

パラメータ:

variableName - The check name of variable for message. (NotNull)

value - The checked value. (NotNull)