com.jalios.util
Class ReflectUtil

java.lang.Object
  com.jalios.util.ReflectUtil

public class ReflectUtil
extends java.lang.Object

Field Summary

static java.lang.String

REVISION

Constructor Summary

ReflectUtil()

Method Summary

static java.lang.Object	fieldGetter(java.lang.Object instance, java.lang.reflect.Field field) Return the return value of a getter call from a given field on a given instance
static void	fieldSetter(java.lang.Object obj, java.lang.reflect.Field field, java.lang.Object fieldValue)
static java.lang.reflect.Field	getField(java.lang.Class<?> clazz, java.lang.String attName) Returns a Field object that reflects the specified declared field of the class or interface represented by this Class object.
static java.lang.Object	getFieldValue(java.lang.Object instance, java.lang.reflect.Field field) Returns the field value corresponding to the field argument
static java.lang.String	getGetterMethodName(java.lang.reflect.Field field) Return the name of the getter method for a field.
static java.lang.String	getSetterMethodName(java.lang.reflect.Field field) Return the name of the setter method for a field.
static java.util.Map	introspectFields(java.lang.Class clazz) Introspect a Class to retrieve public fields
static java.util.Map	introspectFields(java.lang.Object obj) Convenient method to introspect fields of an object
static java.util.Map	introspectFields(java.lang.Object instance, java.util.Map fields) Introspect an Object by calling given fields
static void	setFieldValue(java.lang.Object storable, java.lang.reflect.Field field, java.lang.Object fieldValue) Set a field to a value

Methods inherited from class java.lang.Object

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

Field Detail

REVISION

public static final java.lang.String REVISION

See Also:

Constant Field Values

Constructor Detail

ReflectUtil

public ReflectUtil()

Method Detail

getGetterMethodName

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

Return the name of the getter method for a field. Field's name is supposed to be conformed with JavaBeans design patterns. Examples:

 int status; -> getStatus()
 boolean isEnabled -> isEnabled();
 

Parameters:

field - the field

Since:

jcms-4.2

getField

public static java.lang.reflect.Field getField(java.lang.Class<?> clazz,
                                               java.lang.String attName)

Returns a Field object that reflects the specified declared field of the class or interface represented by this Class object.

Parameters:

clazz - specifies the class or interface

attName - the name of the desired field

getFieldValue

public static java.lang.Object getFieldValue(java.lang.Object instance,
                                             java.lang.reflect.Field field)

Returns the field value corresponding to the field argument

Parameters:

instance - - the instance containing the field

field - - the requested field

Returns:

the value of the field

fieldGetter

public static java.lang.Object fieldGetter(java.lang.Object instance,
                                           java.lang.reflect.Field field)

Return the return value of a getter call from a given field on a given instance

Parameters:

instance -

field -

Since:

jcms-4.2

getSetterMethodName

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

Return the name of the setter method for a field. Field's name is supposed to be conformed with JavaBeans design patterns. Examples: Examples:

 int status; -> setStatus()
 

Parameters:

field - the field

Since:

jcms-4.2

setFieldValue

public static void setFieldValue(java.lang.Object storable,
                                 java.lang.reflect.Field field,
                                 java.lang.Object fieldValue)

Set a field to a value

Parameters:

storable - - the instance containing the field

field - - the field to set

fieldValue - - the new field value

fieldSetter

public static void fieldSetter(java.lang.Object obj,
                               java.lang.reflect.Field field,
                               java.lang.Object fieldValue)

introspectFields

public static java.util.Map introspectFields(java.lang.Object obj)

Convenient method to introspect fields of an object

Parameters:

obj - the object to introspect

Returns:

a Map of FieldName / Value

Since:

jcms-4.2

introspectFields

public static java.util.Map introspectFields(java.lang.Class clazz)

Introspect a Class to retrieve public fields

Parameters:

clazz - the class to introspect

Returns:

a Map of FieldName / Field

Since:

jcms-4.2

introspectFields

public static java.util.Map introspectFields(java.lang.Object instance,
                                             java.util.Map fields)

Introspect an Object by calling given fields

Parameters:

instance - the instance to introspect

fields - a Map of FieldName / Field to call

Returns:

a Map of FieldName / Value

Since:

jcms-4.2