com.vinculumtech.platform.util
Class ReflectionHelper

java.lang.Object
  com.vinculumtech.platform.util.ReflectionHelper

public final class ReflectionHelper

extends java.lang.Object

The ReflectionHelper class is the root of all Java reflection queries and invocations.

This class caches java.lang.reflect.Field and java.lang.reflect.Method instances. Additionally it wraps all failures in PlatformException instances.

Version:

$Id: //depot/carrierwave/src/shared/com/vinculumtech/platform/util/ReflectionHelper.java#17 $

Method Summary

static java.lang.Class	classForName(java.lang.String name)
static java.lang.reflect.Method	findAccessorMethodFor(java.lang.Class type, boolean isGetter, java.lang.String fieldName, int numArgs, boolean isList, boolean isMap)
static java.lang.reflect.Field	findFieldNamed(java.util.List fields, java.lang.String fieldName)
static java.lang.Class	findInterfaceAssignableTo(java.lang.Class interfaceType, java.lang.Class classType)
static java.lang.reflect.Method	findMethod(java.lang.String methodName, java.lang.Class targetClass)
static java.lang.reflect.Method	findMethod(java.lang.String methodName, java.lang.Class targetClass, java.lang.Class[] argTypes)
static java.util.List	getAllInstanceFields(java.lang.Class type, java.lang.Class baseType) Upto but not including the base type, use null for baseType if you want Object fields.
static java.lang.Object	getInstanceFieldValue(java.lang.Object source, java.lang.String fieldName)
static java.lang.Object	getInstanceFieldValue(java.lang.Object source, java.lang.String fieldName, boolean isList, boolean isMap)
static java.lang.Object	getStaticFieldValue(java.lang.Class type, java.lang.String fieldName)
static java.lang.Object	getStaticFieldValue(java.lang.String objectType, java.lang.String fieldName)
static java.lang.Object	invoke(java.lang.String methodName, java.lang.Object target)
static java.lang.Object	invoke(java.lang.String methodName, java.lang.Object target, java.lang.Class[] argTypes, java.lang.Object[] args) If target is an instance of Class, then the static method will be invoked on the class.
static boolean	isPrimitive(java.lang.String name)
static boolean	isPrimitiveObject(java.lang.String name)
static java.lang.Object	newInstance(java.lang.Class type)
static java.lang.Object	newInstance(java.lang.Class type, java.lang.String arg)
static java.lang.Object	newInstance(java.lang.String className)
static java.lang.Object	newInstance(java.lang.String className, java.lang.String arg)
static java.lang.Class	primitiveForName(java.lang.String name) Returns null if the given name is not a primitive type.
static java.lang.Class	primitiveObjectForName(java.lang.String name)
static void	putInstanceFieldValue(java.lang.Object source, java.lang.String fieldName, java.lang.Object value, boolean isList, boolean isMap)
static void	putInstanceFieldValue(java.lang.Object source, java.lang.String fieldName, java.lang.Object value, boolean isList, boolean isMap, boolean isStrict)
static void	setInstanceFieldValue(java.lang.Object destination, java.lang.String fieldName, java.lang.Object value)

Methods inherited from class java.lang.Object

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

Method Detail

isPrimitive

public static final boolean isPrimitive(java.lang.String name)

isPrimitiveObject

public static final boolean isPrimitiveObject(java.lang.String name)

primitiveForName

public static final java.lang.Class primitiveForName(java.lang.String name)

Returns null if the given name is not a primitive type.

Parameters:

name -

Returns:

primitiveObjectForName

public static final java.lang.Class primitiveObjectForName(java.lang.String name)

classForName

public static final java.lang.Class classForName(java.lang.String name)

newInstance

public static final java.lang.Object newInstance(java.lang.String className)

newInstance

public static final java.lang.Object newInstance(java.lang.Class type)

newInstance

public static final java.lang.Object newInstance(java.lang.String className,
                                                 java.lang.String arg)

newInstance

public static final java.lang.Object newInstance(java.lang.Class type,
                                                 java.lang.String arg)

findMethod

public static final java.lang.reflect.Method findMethod(java.lang.String methodName,
                                                        java.lang.Class targetClass)
                                                 throws java.lang.NoSuchMethodException

Throws:

java.lang.NoSuchMethodException

findMethod

public static final java.lang.reflect.Method findMethod(java.lang.String methodName,
                                                        java.lang.Class targetClass,
                                                        java.lang.Class[] argTypes)
                                                 throws java.lang.NoSuchMethodException

Throws:

java.lang.NoSuchMethodException

findAccessorMethodFor

public static final java.lang.reflect.Method findAccessorMethodFor(java.lang.Class type,
                                                                   boolean isGetter,
                                                                   java.lang.String fieldName,
                                                                   int numArgs,
                                                                   boolean isList,
                                                                   boolean isMap)
                                                            throws java.lang.NoSuchMethodException

Throws:

java.lang.NoSuchMethodException

invoke

public static final java.lang.Object invoke(java.lang.String methodName,
                                            java.lang.Object target)
                                     throws java.lang.NoSuchMethodException,
                                            java.lang.reflect.InvocationTargetException

Throws:

java.lang.NoSuchMethodException

java.lang.reflect.InvocationTargetException

invoke

public static final java.lang.Object invoke(java.lang.String methodName,
                                            java.lang.Object target,
                                            java.lang.Class[] argTypes,
                                            java.lang.Object[] args)
                                     throws java.lang.NoSuchMethodException,
                                            java.lang.reflect.InvocationTargetException

If target is an instance of Class, then the static method will be invoked on the class.

Throws:

java.lang.NoSuchMethodException

java.lang.reflect.InvocationTargetException

getStaticFieldValue

public static final java.lang.Object getStaticFieldValue(java.lang.String objectType,
                                                         java.lang.String fieldName)

getStaticFieldValue

public static final java.lang.Object getStaticFieldValue(java.lang.Class type,
                                                         java.lang.String fieldName)

getInstanceFieldValue

public static final java.lang.Object getInstanceFieldValue(java.lang.Object source,
                                                           java.lang.String fieldName)

setInstanceFieldValue

public static final void setInstanceFieldValue(java.lang.Object destination,
                                               java.lang.String fieldName,
                                               java.lang.Object value)

getInstanceFieldValue

public static final java.lang.Object getInstanceFieldValue(java.lang.Object source,
                                                           java.lang.String fieldName,
                                                           boolean isList,
                                                           boolean isMap)

putInstanceFieldValue

public static final void putInstanceFieldValue(java.lang.Object source,
                                               java.lang.String fieldName,
                                               java.lang.Object value,
                                               boolean isList,
                                               boolean isMap)

putInstanceFieldValue

public static final void putInstanceFieldValue(java.lang.Object source,
                                               java.lang.String fieldName,
                                               java.lang.Object value,
                                               boolean isList,
                                               boolean isMap,
                                               boolean isStrict)

findFieldNamed

public static final java.lang.reflect.Field findFieldNamed(java.util.List fields,
                                                           java.lang.String fieldName)

getAllInstanceFields

public static final java.util.List getAllInstanceFields(java.lang.Class type,
                                                        java.lang.Class baseType)

Upto but not including the base type, use null for baseType if you want Object fields.

findInterfaceAssignableTo

public static final java.lang.Class findInterfaceAssignableTo(java.lang.Class interfaceType,
                                                              java.lang.Class classType)