com.alee.utils

Class ReflectUtils

java.lang.Object

com.alee.utils.ReflectUtils

public final class ReflectUtils
extends java.lang.Object

This class provides a set of utilities to simplify work with Reflection API. There is also a few methods to retrieve full JAR archive structure.

Constructor Summary

Constructors

Constructor and Description
ReflectUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static void	applyFieldValue(java.lang.Object object, java.lang.String field, java.lang.Object value) Applies specified value to object field.
static boolean	applyFieldValueSafely(java.lang.Object object, java.lang.String field, java.lang.Object value) Applies specified value to object field.
static <T> T	callMethod(java.lang.Object object, java.lang.String methodName, java.lang.Object... arguments) Calls object's method with the specified name and arguments.
static <T> java.util.List<T>	callMethods(java.util.List objects, java.lang.String methodName, java.lang.Object... arguments) Returns list of results returned by called methods.
static java.lang.Object[]	callMethods(java.lang.Object[] objects, java.lang.String methodName, java.lang.Object... arguments) Returns an array of results returned by called methods.
static <T> T	callMethodSafely(java.lang.Object object, java.lang.String methodName, java.lang.Object... arguments) Returns result given by called method.
static <T> java.util.List<T>	callMethodsSafely(java.util.List objects, java.lang.String methodName, java.lang.Object... arguments) Returns list of results returned by called methods.
static java.lang.Object[]	callMethodsSafely(java.lang.Object[] objects, java.lang.String methodName, java.lang.Object... arguments) Returns an array of results returned by called methods.
static <T> T	callStaticMethod(java.lang.Class theClass, java.lang.String methodName, java.lang.Object... arguments) Returns result of called static method.
static <T> T	callStaticMethod(java.lang.String canonicalClassName, java.lang.String methodName, java.lang.Object... arguments) Returns result of called static method.
static <T> T	callStaticMethodSafely(java.lang.Class theClass, java.lang.String methodName, java.lang.Object... arguments) Returns result of called static method.
static <T> T	callStaticMethodSafely(java.lang.String canonicalClassName, java.lang.String methodName, java.lang.Object... arguments) Returns result of called static method.
static <T extends java.lang.Cloneable> T	clone(T object) Returns cloned object.
static <T extends java.lang.Cloneable> T	cloneSafely(T object) Returns cloned object.
static boolean	containsInClassOrSuperclassName(java.lang.Class theClass, java.lang.String text) Returns whether one of superclasses contains specified text in its name or not.
static <T> T	createInstance(java.lang.Class theClass, java.lang.Object... arguments) Returns newly created class instance.
static <T> T	createInstance(java.lang.String canonicalClassName, java.lang.Object... arguments) Returns newly created class instance.
static <T> T	createInstanceSafely(java.lang.Class theClass, java.lang.Object... arguments) Returns newly created class instance.
static <T> T	createInstanceSafely(java.lang.String canonicalClassName, java.lang.Object... arguments) Returns newly created class instance.
static java.lang.Class	getCallerClass() Returns method caller class.
static <T> java.lang.Class<T>	getClass(java.lang.String canonicalName) Returns class for the specified canonical name.
static java.lang.String	getClassFileName(java.lang.Class classType) Returns class name with ".class" extension in the end.
static java.lang.String	getClassFileName(java.lang.Object classObject) Returns class name with ".class" extension in the end.
static java.lang.String	getClassName(java.lang.Class classType) Returns class name.
static java.lang.String	getClassName(java.lang.Object classObject) Returns class name.
static java.lang.String[]	getClassPackages(java.lang.Class classType) Returns class packages.
static java.lang.String[]	getClassPackages(java.lang.Object classObject) Returns class packages.
static java.lang.Class	getClassSafely(java.lang.String canonicalName) Returns class for the specified canonical name.
static java.lang.Class[]	getClassTypes(java.lang.Object[] arguments) Returns an array of argument class types.
static java.lang.reflect.Constructor	getConstructor(java.lang.Class theClass, java.lang.Class... parameterTypes) Returns class constructor for the specified argument types.
static java.lang.reflect.Field	getField(java.lang.Class classType, java.lang.String fieldName) Returns specified class field.
static java.lang.reflect.Method	getFieldGetter(java.lang.Class aClass, java.lang.String field) Returns field getter methor by popular method naming pattern.
static java.lang.reflect.Method	getFieldGetter(java.lang.Object object, java.lang.String field) Returns field getter methor by popular method naming pattern.
static java.lang.reflect.Field	getFieldImpl(java.lang.Class classType, java.lang.String fieldName) Returns specified class field.
static java.lang.reflect.Field	getFieldSafely(java.lang.Class classType, java.lang.String fieldName) Returns specified class field.
static java.lang.Class<?>	getFieldType(java.lang.Class classType, java.lang.String fieldName) Returns specified class field's type.
static java.lang.Class<?>	getFieldTypeSafely(java.lang.Class classType, java.lang.String fieldName) Returns specified class field's type.
static java.lang.String	getGetterMethodName(java.lang.String field) Returns getter method name for the specified field.
static java.lang.Class	getInnerClass(java.lang.Class fromClass, java.lang.String innerClassName) Returns inner class with the specified name.
static java.lang.String	getIsGetterMethodName(java.lang.String field) Returns "is" getter method name for the specified field.
static java.io.File	getJarLocationFile(java.lang.Class jarClass) Returns JAR location File for the specified class.
static java.net.URL	getJarLocationURL(java.lang.Class jarClass) Returns JAR location URL for the specified class.
static JarStructure	getJarStructure(java.lang.Class jarClass) Returns JAR archive structure.
static JarStructure	getJarStructure(java.lang.Class jarClass, java.util.List<java.lang.String> allowedExtensions, java.util.List<java.lang.String> allowedPackgages) Returns JAR archive structure.
static JarStructure	getJarStructure(java.lang.Class jarClass, java.util.List<java.lang.String> allowedExtensions, java.util.List<java.lang.String> allowedPackgages, FileDownloadListener listener) Returns JAR archive structure.
static java.lang.String	getJavaClassName(java.lang.Class classType) Returns class name with ".java" extension in the end.
static java.lang.String	getJavaClassName(java.lang.Object classObject) Returns class name with ".java" extension in the end.
static java.lang.reflect.Method	getMethod(java.lang.Class aClass, java.lang.String methodName, java.lang.Object... arguments) Returns object's method with the specified name and arguments.
static java.lang.reflect.Method	getMethod(java.lang.Object object, java.lang.String methodName, java.lang.Object... arguments) Returns object's method with the specified name and arguments.
protected static java.lang.reflect.Method	getMethodImpl(java.lang.Class aClass, java.lang.String methodName, java.lang.Object[] arguments) Returns object's method with the specified name and arguments.
static java.lang.reflect.Method	getMethodSafely(java.lang.Class aClass, java.lang.String methodName, java.lang.Object... arguments) Returns object's method with the specified name and arguments.
static java.lang.reflect.Method	getMethodSafely(java.lang.Object object, java.lang.String methodName, java.lang.Object... arguments) Calls object's method with the specified name and arguments.
static java.lang.String[]	getPackages(java.lang.String packageName) Returns packages names.
static java.lang.String	getSetterMethodName(java.lang.String field) Returns setter method name for the specified field.
static <T> T	getStaticFieldValue(java.lang.Class classType, java.lang.String fieldName) Returns static field value from the specified class.
static <T> T	getStaticFieldValueSafely(java.lang.Class classType, java.lang.String fieldName) Returns static field value from the specified class.
static boolean	isAssignable(java.lang.Class type, java.lang.Class from) Returns whether first type is assignable from second one or not.
static java.lang.Class	loadClass(java.lang.String canonicalClassName) Returns class loaded for the specified canonical class name.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectUtils

public ReflectUtils()

Method Detail

getFieldTypeSafely

public static java.lang.Class<?> getFieldTypeSafely(java.lang.Class classType,
                                    java.lang.String fieldName)

Returns specified class field's type. This method will also look for the field in super-classes if any exist.

Parameters:

classType - type of the class where field can be located

fieldName - field name

Returns:

specified class field's type

getFieldType

public static java.lang.Class<?> getFieldType(java.lang.Class classType,
                              java.lang.String fieldName)
                                       throws java.lang.NoSuchFieldException

Returns specified class field's type. This method will also look for the field in super-classes if any exist.

Parameters:

classType - type of the class where field can be located

fieldName - field name

Returns:

specified class field's type

Throws:

java.lang.NoSuchFieldException

getFieldSafely

public static java.lang.reflect.Field getFieldSafely(java.lang.Class classType,
                                     java.lang.String fieldName)
                                              throws java.lang.NoSuchFieldException

Returns specified class field. This method will also look for the field in super-classes if any exist.

Parameters:

classType - type of the class where field can be located

fieldName - field name

Returns:

specified class field

Throws:

java.lang.NoSuchFieldException

getField

public static java.lang.reflect.Field getField(java.lang.Class classType,
                               java.lang.String fieldName)
                                        throws java.lang.NoSuchFieldException

Returns specified class field. This method will also look for the field in super-classes if any exist.

Parameters:

classType - type of the class where field can be located

fieldName - field name

Returns:

specified class field

Throws:

java.lang.NoSuchFieldException

getFieldImpl

public static java.lang.reflect.Field getFieldImpl(java.lang.Class classType,
                                   java.lang.String fieldName)
                                            throws java.lang.NoSuchFieldException

Returns specified class field. This method will also look for the field in super-classes if any exist.

Parameters:

classType - type of the class where field can be located

fieldName - field name

Returns:

specified class field

Throws:

java.lang.NoSuchFieldException

applyFieldValueSafely

public static boolean applyFieldValueSafely(java.lang.Object object,
                            java.lang.String field,
                            java.lang.Object value)

Applies specified value to object field. This method allows to access and modify even private object fields.

Parameters:

object - object instance

field - object field

value - field value

Returns:

true if value was applied successfully, false otherwise

applyFieldValue

public static void applyFieldValue(java.lang.Object object,
                   java.lang.String field,
                   java.lang.Object value)
                            throws java.lang.IllegalAccessException,
                                   java.lang.NoSuchFieldException

Applies specified value to object field. This method allows to access and modify even private object fields.

Parameters:

object - object instance

field - object field

value - field value

Throws:

java.lang.IllegalAccessException

java.lang.NoSuchFieldException

getClassSafely

public static java.lang.Class getClassSafely(java.lang.String canonicalName)

Returns class for the specified canonical name.

Parameters:

canonicalName - class canonical name

Returns:

class for the specified canonical name

getClass

public static <T> java.lang.Class<T> getClass(java.lang.String canonicalName)
                                   throws java.lang.ClassNotFoundException

Returns class for the specified canonical name.

Parameters:

canonicalName - class canonical name

Returns:

class for the specified canonical name

Throws:

java.lang.ClassNotFoundException

getJarStructure

public static JarStructure getJarStructure(java.lang.Class jarClass)

Returns JAR archive structure.

Parameters:

jarClass - any class within the JAR

Returns:

JAR archive structure

getJarStructure

public static JarStructure getJarStructure(java.lang.Class jarClass,
                           java.util.List<java.lang.String> allowedExtensions,
                           java.util.List<java.lang.String> allowedPackgages)

Returns JAR archive structure.

Parameters:

jarClass - any class within the JAR

allowedExtensions - list of extension filters

allowedPackgages - list of allowed packages

Returns:

JAR archive structure

getJarStructure

public static JarStructure getJarStructure(java.lang.Class jarClass,
                           java.util.List<java.lang.String> allowedExtensions,
                           java.util.List<java.lang.String> allowedPackgages,
                           FileDownloadListener listener)

Returns JAR archive structure.

Parameters:

jarClass - any class within the JAR

allowedExtensions - list of extension filters

allowedPackgages - list of allowed packages

listener - jar download listener

Returns:

JAR archive structure

getJarLocationURL

public static java.net.URL getJarLocationURL(java.lang.Class jarClass)

Returns JAR location URL for the specified class.

Parameters:

jarClass - any class from that JAR

Returns:

JAR location URL

getJarLocationFile

public static java.io.File getJarLocationFile(java.lang.Class jarClass)

Returns JAR location File for the specified class.

Parameters:

jarClass - any class from that JAR

Returns:

JAR location File

getCallerClass

public static java.lang.Class getCallerClass()

Returns method caller class. It is not recommended to use this method anywhere but in debugging.

Returns:

method caller class

getJavaClassName

public static java.lang.String getJavaClassName(java.lang.Object classObject)

Returns class name with ".java" extension in the end.

Parameters:

classObject - object of class type

Returns:

class name with ".java" extension in the end

getJavaClassName

public static java.lang.String getJavaClassName(java.lang.Class classType)

Returns class name with ".java" extension in the end.

Parameters:

classType - class type

Returns:

class name with ".java" extension in the end

getClassFileName

public static java.lang.String getClassFileName(java.lang.Object classObject)

Returns class name with ".class" extension in the end.

Parameters:

classObject - object of class type

Returns:

class name with ".class" extension in the end

getClassFileName

public static java.lang.String getClassFileName(java.lang.Class classType)

Returns class name with ".class" extension in the end.

Parameters:

classType - class type

Returns:

class name with ".class" extension in the end

getClassName

public static java.lang.String getClassName(java.lang.Object classObject)

Returns class name.

Parameters:

classObject - object of class type

Returns:

class name

getClassName

public static java.lang.String getClassName(java.lang.Class classType)

Returns class name.

Parameters:

classType - class type

Returns:

class name

getClassPackages

public static java.lang.String[] getClassPackages(java.lang.Object classObject)

Returns class packages.

Parameters:

classObject - object of class type

Returns:

class packages

getClassPackages

public static java.lang.String[] getClassPackages(java.lang.Class classType)

Returns class packages.

Parameters:

classType - class type

Returns:

class packages

getPackages

public static java.lang.String[] getPackages(java.lang.String packageName)

Returns packages names.

Parameters:

packageName - package name

Returns:

packages names

getStaticFieldValueSafely

public static <T> T getStaticFieldValueSafely(java.lang.Class classType,
                              java.lang.String fieldName)

Returns static field value from the specified class.

Parameters:

classType - class type

fieldName - class field name

Returns:

static field value from the specified class

getStaticFieldValue

public static <T> T getStaticFieldValue(java.lang.Class classType,
                        java.lang.String fieldName)
                             throws java.lang.NoSuchFieldException,
                                    java.lang.IllegalAccessException

Returns static field value from the specified class.

Parameters:

classType - class type

fieldName - class field name

Returns:

static field value from the specified class

Throws:

java.lang.NoSuchFieldException

java.lang.IllegalAccessException

getInnerClass

public static java.lang.Class getInnerClass(java.lang.Class fromClass,
                            java.lang.String innerClassName)

Returns inner class with the specified name.

Parameters:

fromClass - class to look for the inner class

innerClassName - inner class name

Returns:

inner class with the specified name

createInstanceSafely

public static <T> T createInstanceSafely(java.lang.String canonicalClassName,
                         java.lang.Object... arguments)

Returns newly created class instance.

Parameters:

canonicalClassName - canonical class name

arguments - class constructor arguments

Returns:

newly created class instance

createInstance

public static <T> T createInstance(java.lang.String canonicalClassName,
                   java.lang.Object... arguments)
                        throws java.lang.ClassNotFoundException,
                               java.lang.reflect.InvocationTargetException,
                               java.lang.IllegalAccessException,
                               java.lang.InstantiationException,
                               java.lang.NoSuchMethodException

Returns newly created class instance.

Parameters:

canonicalClassName - canonical class name

arguments - class constructor arguments

Returns:

newly created class instance

Throws:

java.lang.ClassNotFoundException

java.lang.reflect.InvocationTargetException

java.lang.IllegalAccessException

java.lang.InstantiationException

java.lang.NoSuchMethodException

createInstanceSafely

public static <T> T createInstanceSafely(java.lang.Class theClass,
                         java.lang.Object... arguments)

Returns newly created class instance.

Parameters:

theClass - class to process

arguments - class constructor arguments

Returns:

newly created class instance

createInstance

public static <T> T createInstance(java.lang.Class theClass,
                   java.lang.Object... arguments)
                        throws java.lang.InstantiationException,
                               java.lang.IllegalAccessException,
                               java.lang.reflect.InvocationTargetException,
                               java.lang.NoSuchMethodException

Returns newly created class instance.

Parameters:

theClass - class to process

arguments - class constructor arguments

Returns:

newly created class instance

Throws:

java.lang.InstantiationException

java.lang.IllegalAccessException

java.lang.reflect.InvocationTargetException

java.lang.NoSuchMethodException

getConstructor

public static java.lang.reflect.Constructor getConstructor(java.lang.Class theClass,
                                           java.lang.Class... parameterTypes)
                                                    throws java.lang.NoSuchMethodException

Returns class constructor for the specified argument types.

Parameters:

theClass - class to process

parameterTypes - constructor argument types

Returns:

class constructor for the specified argument types

Throws:

java.lang.NoSuchMethodException

callStaticMethodSafely

public static <T> T callStaticMethodSafely(java.lang.String canonicalClassName,
                           java.lang.String methodName,
                           java.lang.Object... arguments)

Returns result of called static method. Will return null in case method is void-type.

Parameters:

canonicalClassName - canonical class name

methodName - static method name

arguments - method arguments

Returns:

result of called static method

callStaticMethod

public static <T> T callStaticMethod(java.lang.String canonicalClassName,
                     java.lang.String methodName,
                     java.lang.Object... arguments)
                          throws java.lang.ClassNotFoundException,
                                 java.lang.reflect.InvocationTargetException,
                                 java.lang.NoSuchMethodException,
                                 java.lang.IllegalAccessException

Returns result of called static method. Will return null in case method is void-type.

Parameters:

canonicalClassName - canonical class name

methodName - static method name

arguments - method arguments

Returns:

result of called static method

Throws:

java.lang.ClassNotFoundException

java.lang.reflect.InvocationTargetException

java.lang.NoSuchMethodException

java.lang.IllegalAccessException

callStaticMethodSafely

public static <T> T callStaticMethodSafely(java.lang.Class theClass,
                           java.lang.String methodName,
                           java.lang.Object... arguments)

Returns result of called static method. Will return null in case method is void-type.

Parameters:

theClass - class to process

methodName - static method name

arguments - method arguments

Returns:

result of called static method

callStaticMethod

public static <T> T callStaticMethod(java.lang.Class theClass,
                     java.lang.String methodName,
                     java.lang.Object... arguments)
                          throws java.lang.NoSuchMethodException,
                                 java.lang.reflect.InvocationTargetException,
                                 java.lang.IllegalAccessException

Returns result of called static method. Will return null in case method is void-type.

Parameters:

theClass - class to process

methodName - static method name

arguments - static method arguments

Returns:

result given by called static method

Throws:

java.lang.NoSuchMethodException

java.lang.reflect.InvocationTargetException

java.lang.IllegalAccessException

callMethodsSafely

public static <T> java.util.List<T> callMethodsSafely(java.util.List objects,
                                      java.lang.String methodName,
                                      java.lang.Object... arguments)

Returns list of results returned by called methods.

Parameters:

objects - objects to call methods on

methodName - method name

arguments - method arguments

Returns:

list of results returned by called methods

callMethods

public static <T> java.util.List<T> callMethods(java.util.List objects,
                                java.lang.String methodName,
                                java.lang.Object... arguments)
                                     throws java.lang.NoSuchMethodException,
                                            java.lang.reflect.InvocationTargetException,
                                            java.lang.IllegalAccessException

Returns list of results returned by called methods.

Parameters:

objects - objects to call methods on

methodName - method name

arguments - method arguments

Returns:

list of results returned by called methods

Throws:

java.lang.NoSuchMethodException

java.lang.reflect.InvocationTargetException

java.lang.IllegalAccessException

callMethodsSafely

public static java.lang.Object[] callMethodsSafely(java.lang.Object[] objects,
                                   java.lang.String methodName,
                                   java.lang.Object... arguments)

Returns an array of results returned by called methods.

Parameters:

objects - objects to call methods on

methodName - method name

arguments - method arguments

Returns:

an array of results returned by called methods

callMethods

public static java.lang.Object[] callMethods(java.lang.Object[] objects,
                             java.lang.String methodName,
                             java.lang.Object... arguments)
                                      throws java.lang.NoSuchMethodException,
                                             java.lang.reflect.InvocationTargetException,
                                             java.lang.IllegalAccessException

Returns an array of results returned by called methods.

Parameters:

objects - objects to call methods on

methodName - method name

arguments - method arguments

Returns:

an array of results returned by called methods

Throws:

java.lang.NoSuchMethodException

java.lang.reflect.InvocationTargetException

java.lang.IllegalAccessException

callMethodSafely

public static <T> T callMethodSafely(java.lang.Object object,
                     java.lang.String methodName,
                     java.lang.Object... arguments)

Returns result given by called method.

Parameters:

object - object instance

methodName - method name

arguments - method arguments

Returns:

result given by called method

callMethod

public static <T> T callMethod(java.lang.Object object,
               java.lang.String methodName,
               java.lang.Object... arguments)
                    throws java.lang.NoSuchMethodException,
                           java.lang.reflect.InvocationTargetException,
                           java.lang.IllegalAccessException

Calls object's method with the specified name and arguments. If method is not found in the object class all superclasses will be searched for that method. Returns result given by called method.

Parameters:

object - object instance

methodName - method name

arguments - method arguments

Returns:

result given by called method

Throws:

java.lang.NoSuchMethodException

java.lang.reflect.InvocationTargetException

java.lang.IllegalAccessException

getFieldGetter

public static java.lang.reflect.Method getFieldGetter(java.lang.Object object,
                                      java.lang.String field)

Returns field getter methor by popular method naming pattern. Basically those are "getFieldName"-like and "isFieldName"-like method names.

Parameters:

object - object

field - field name

Returns:

field getter methor by popular method naming pattern

getFieldGetter

public static java.lang.reflect.Method getFieldGetter(java.lang.Class aClass,
                                      java.lang.String field)

Returns field getter methor by popular method naming pattern. Basically those are "getFieldName"-like and "isFieldName"-like method names.

Parameters:

aClass - object class

field - field name

Returns:

field getter methor by popular method naming pattern

getSetterMethodName

public static java.lang.String getSetterMethodName(java.lang.String field)

Returns setter method name for the specified field.

Parameters:

field - field name

Returns:

setter method name for the specified field

getGetterMethodName

public static java.lang.String getGetterMethodName(java.lang.String field)

Returns getter method name for the specified field.

Parameters:

field - field name

Returns:

getter method name for the specified field

getIsGetterMethodName

public static java.lang.String getIsGetterMethodName(java.lang.String field)

Returns "is" getter method name for the specified field.

Parameters:

field - field name

Returns:

"is" getter method name for the specified field

getMethodSafely

public static java.lang.reflect.Method getMethodSafely(java.lang.Object object,
                                       java.lang.String methodName,
                                       java.lang.Object... arguments)

Calls object's method with the specified name and arguments. If method is not found in the object class all superclasses will be searched for that method. Returns result given by called method.

Parameters:

object - object

methodName - method name

arguments - method arguments

Returns:

result given by called method

getMethodSafely

public static java.lang.reflect.Method getMethodSafely(java.lang.Class aClass,
                                       java.lang.String methodName,
                                       java.lang.Object... arguments)

Returns object's method with the specified name and arguments. If method is not found in the object class all superclasses will be searched for that method.

Parameters:

aClass - object class

methodName - method name

arguments - method arguments

Returns:

object's method with the specified name and arguments

getMethod

public static java.lang.reflect.Method getMethod(java.lang.Object object,
                                 java.lang.String methodName,
                                 java.lang.Object... arguments)
                                          throws java.lang.NoSuchMethodException,
                                                 java.lang.reflect.InvocationTargetException,
                                                 java.lang.IllegalAccessException

Returns object's method with the specified name and arguments. If method is not found in the object class all superclasses will be searched for that method.

Parameters:

object - object

methodName - method name

arguments - method arguments

Returns:

object's method with the specified name and arguments

Throws:

java.lang.NoSuchMethodException

java.lang.reflect.InvocationTargetException

java.lang.IllegalAccessException

getMethod

public static java.lang.reflect.Method getMethod(java.lang.Class aClass,
                                 java.lang.String methodName,
                                 java.lang.Object... arguments)
                                          throws java.lang.NoSuchMethodException,
                                                 java.lang.reflect.InvocationTargetException,
                                                 java.lang.IllegalAccessException

Returns object's method with the specified name and arguments. If method is not found in the object class all superclasses will be searched for that method.

Parameters:

aClass - object class

methodName - method name

arguments - method arguments

Returns:

object's method with the specified name and arguments

Throws:

java.lang.NoSuchMethodException

java.lang.reflect.InvocationTargetException

java.lang.IllegalAccessException

getMethodImpl

protected static java.lang.reflect.Method getMethodImpl(java.lang.Class aClass,
                                     java.lang.String methodName,
                                     java.lang.Object[] arguments)
                                                 throws java.lang.NoSuchMethodException,
                                                        java.lang.IllegalAccessException,
                                                        java.lang.reflect.InvocationTargetException

Returns object's method with the specified name and arguments. If method is not found in the object class all superclasses will be searched for that method.

Parameters:

aClass - object class

methodName - method name

arguments - method arguments

Returns:

object's method with the specified name and arguments

Throws:

java.lang.NoSuchMethodException

java.lang.reflect.InvocationTargetException

java.lang.IllegalAccessException

clone

public static <T extends java.lang.Cloneable> T clone(T object)
                                           throws java.lang.NoSuchMethodException,
                                                  java.lang.IllegalAccessException,
                                                  java.lang.reflect.InvocationTargetException

Returns cloned object.

Type Parameters:

T - cloned object type

Parameters:

object - object to clone

Returns:

cloned object

Throws:

java.lang.NoSuchMethodException

java.lang.IllegalAccessException

java.lang.reflect.InvocationTargetException

cloneSafely

public static <T extends java.lang.Cloneable> T cloneSafely(T object)

Returns cloned object.

Type Parameters:

T - cloned object type

Parameters:

object - object to clone

Returns:

cloned object

loadClass

public static java.lang.Class loadClass(java.lang.String canonicalClassName)
                                 throws java.lang.ClassNotFoundException

Returns class loaded for the specified canonical class name.

Parameters:

canonicalClassName - canonical class name

Returns:

class loaded for the specified canonical class name

Throws:

java.lang.ClassNotFoundException

getClassTypes

public static java.lang.Class[] getClassTypes(java.lang.Object[] arguments)

Returns an array of argument class types.

Parameters:

arguments - arguments to process

Returns:

an array of argument class types

isAssignable

public static boolean isAssignable(java.lang.Class type,
                   java.lang.Class from)

Returns whether first type is assignable from second one or not.

Parameters:

type - checked whether is assignable, always not null

from - checked type, might be null

Returns:

true if first type is assignable from second one, false otherwise

containsInClassOrSuperclassName

public static boolean containsInClassOrSuperclassName(java.lang.Class theClass,
                                      java.lang.String text)

Returns whether one of superclasses contains specified text in its name or not.

Parameters:

theClass - class to process

text - text to search for

Returns:

true if one of superclasses contains specified text in its name, false otherwise