Package org.apache.ofbiz.base.util

Class ObjectType

java.lang.Object

org.apache.ofbiz.base.util.ObjectType

public class ObjectType
extends java.lang.Object

Utilities for analyzing and converting Object types in Java Takes advantage of reflection

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ObjectType.NullObject

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	LANG_PACKAGE
static java.lang.String	module
static java.lang.Object	NULL
static java.lang.String	SQL_PACKAGE

Constructor Summary

Constructors

Constructor	Description
ObjectType()

Method Summary

Modifier and Type	Method	Description
static java.lang.Boolean	doRealCompare(java.lang.Object value1, java.lang.Object value2, java.lang.String operator, java.lang.String type, java.lang.String format, java.util.List<java.lang.Object> messages, java.util.Locale locale, java.lang.ClassLoader loader, boolean value2InlineConstant)
static java.lang.Object	getInstance(java.lang.String className)	Returns an instance of the specified class.
static java.lang.Object	getInstance(java.lang.String className, java.lang.Object[] parameters)	Returns an instance of the specified class using the constructor matching the specified parameters.
static boolean	instanceOf(java.lang.Class<?> objectClass, java.lang.Class<?> typeClass)	Tests if a class is a class of a sub-class of or properly implements an interface.
static boolean	instanceOf(java.lang.Class<?> objectClass, java.lang.Object typeObject)	Tests if a class is a class of a sub-class of or properly implements an interface.
static boolean	instanceOf(java.lang.Class<?> objectClass, java.lang.String typeName)	Tests if a class is a class of a sub-class of or properly implements an interface.
static boolean	instanceOf(java.lang.Class<?> objectClass, java.lang.String typeName, java.lang.ClassLoader loader)	Tests if a class is a class of a sub-class of or properly implements an interface.
static boolean	instanceOf(java.lang.Object obj, java.lang.Class<?> typeClass)	Tests if an object is an instance of a sub-class of or properly implements an interface.
static boolean	instanceOf(java.lang.Object obj, java.lang.Object typeObject)	Tests if an object is an instance of a sub-class of or properly implements an interface.
static boolean	instanceOf(java.lang.Object obj, java.lang.String typeName)	Tests if an object is an instance of a sub-class of or properly implements an interface.
static boolean	instanceOf(java.lang.Object obj, java.lang.String typeName, java.lang.ClassLoader loader)	Tests if an object is an instance of a sub-class of or properly implements an interface.
static boolean	interfaceOf(java.lang.Class<?> objectClass, java.lang.Class<?> interfaceClass)	Tests if a class properly implements the specified interface.
static boolean	interfaceOf(java.lang.Class<?> objectClass, java.lang.Object interfaceObject)	Tests if a class properly implements the specified interface.
static boolean	interfaceOf(java.lang.Class<?> objectClass, java.lang.String interfaceName)	Tests if a class properly implements the specified interface.
static boolean	interfaceOf(java.lang.Object obj, java.lang.Class<?> interfaceClass)	Tests if an object properly implements the specified interface.
static boolean	interfaceOf(java.lang.Object obj, java.lang.Object interfaceObject)	Tests if an object properly implements the specified interface.
static boolean	interfaceOf(java.lang.Object obj, java.lang.String interfaceName)	Tests if an object properly implements the specified interface.
static boolean	isEmpty(java.lang.Object value)
static boolean	isOrSubOf(java.lang.Class<?> objectClass, java.lang.Class<?> parentClass)	Tests if a class is a class of or a sub-class of the parent.
static boolean	isOrSubOf(java.lang.Class<?> objectClass, java.lang.Object parentObject)	Tests if a class is a class of or a sub-class of the parent.
static boolean	isOrSubOf(java.lang.Class<?> objectClass, java.lang.String parentName)	Tests if a class is a class of or a sub-class of the parent.
static boolean	isOrSubOf(java.lang.Object obj, java.lang.Class<?> parentClass)	Tests if an object is an instance of or a sub-class of the parent.
static boolean	isOrSubOf(java.lang.Object obj, java.lang.Object parentObject)	Tests if an object is an instance of or a sub-class of the parent.
static boolean	isOrSubOf(java.lang.Object obj, java.lang.String parentName)	Tests if an object is an instance of or a sub-class of the parent.
static java.lang.Class<?>	loadClass(java.lang.String className)	Loads a class with the current thread's context classloader.
static java.lang.Class<?>	loadClass(java.lang.String className, java.lang.ClassLoader loader)	Loads a class with the specified classloader.
static java.lang.Class<?>	loadInfoClass(java.lang.String typeName, java.lang.ClassLoader loader)
static java.lang.Object	simpleTypeConvert(java.lang.Object obj, java.lang.String type, java.lang.String format, java.util.Locale locale)
static java.lang.Object	simpleTypeConvert(java.lang.Object obj, java.lang.String type, java.lang.String format, java.util.Locale locale, boolean noTypeFail)
static java.lang.Object	simpleTypeConvert(java.lang.Object obj, java.lang.String type, java.lang.String format, java.util.TimeZone timeZone, java.util.Locale locale, boolean noTypeFail)	Converts the passed object to the named simple type.

Methods inherited from class java.lang.Object

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

Field Detail

module

public static final java.lang.String module

NULL

public static final java.lang.Object NULL

LANG_PACKAGE

public static final java.lang.String LANG_PACKAGE

See Also:

Constant Field Values

SQL_PACKAGE

public static final java.lang.String SQL_PACKAGE

See Also:

Constant Field Values

Constructor Detail

ObjectType

public ObjectType()

Method Detail

loadClass

public static java.lang.Class<?> loadClass(java.lang.String className)
                                    throws java.lang.ClassNotFoundException

Loads a class with the current thread's context classloader.

Parameters:

className - The name of the class to load

Returns:

The requested class

Throws:

java.lang.ClassNotFoundException

loadClass

public static java.lang.Class<?> loadClass(java.lang.String className,
                                           java.lang.ClassLoader loader)
                                    throws java.lang.ClassNotFoundException

Loads a class with the specified classloader.

Parameters:

className - The name of the class to load

loader - The ClassLoader to use

Returns:

The requested class

Throws:

java.lang.ClassNotFoundException

getInstance

public static java.lang.Object getInstance(java.lang.String className)
                                    throws java.lang.ClassNotFoundException,
                                           java.lang.InstantiationException,
                                           java.lang.IllegalAccessException,
                                           java.lang.NoSuchMethodException,
                                           java.lang.reflect.InvocationTargetException

Returns an instance of the specified class. This uses the default no-arg constructor to create the instance.

Parameters:

className - Name of the class to instantiate

Returns:

An instance of the named class

Throws:

java.lang.ClassNotFoundException

java.lang.InstantiationException

java.lang.IllegalAccessException

java.lang.NoSuchMethodException

java.lang.reflect.InvocationTargetException

interfaceOf

public static boolean interfaceOf(java.lang.Class<?> objectClass,
                                  java.lang.String interfaceName)
                           throws java.lang.ClassNotFoundException

Tests if a class properly implements the specified interface.

Parameters:

objectClass - Class to test

interfaceName - Name of the interface to test against

Returns:

true if interfaceName is an interface of objectClass

Throws:

java.lang.ClassNotFoundException

interfaceOf

public static boolean interfaceOf(java.lang.Class<?> objectClass,
                                  java.lang.Object interfaceObject)

Tests if a class properly implements the specified interface.

Parameters:

objectClass - Class to test

interfaceObject - to test against

Returns:

true if interfaceObject is an interface of the objectClass

getInstance

public static java.lang.Object getInstance(java.lang.String className,
                                           java.lang.Object[] parameters)
                                    throws java.lang.ClassNotFoundException,
                                           java.lang.InstantiationException,
                                           java.lang.IllegalAccessException,
                                           java.lang.NoSuchMethodException,
                                           java.lang.reflect.InvocationTargetException

Returns an instance of the specified class using the constructor matching the specified parameters.

Parameters:

className - Name of the class to instantiate

parameters - Parameters passed to the constructor

Returns:

An instance of the className

Throws:

java.lang.ClassNotFoundException

java.lang.InstantiationException

java.lang.IllegalAccessException

java.lang.NoSuchMethodException

java.lang.reflect.InvocationTargetException

interfaceOf

public static boolean interfaceOf(java.lang.Object obj,
                                  java.lang.String interfaceName)
                           throws java.lang.ClassNotFoundException

Tests if an object properly implements the specified interface.

Parameters:

obj - Object to test

interfaceName - Name of the interface to test against

Returns:

true if interfaceName is an interface of obj

Throws:

java.lang.ClassNotFoundException

interfaceOf

public static boolean interfaceOf(java.lang.Object obj,
                                  java.lang.Object interfaceObject)

Tests if an object properly implements the specified interface.

Parameters:

obj - Object to test

interfaceObject - to test against

Returns:

true if interfaceObject is an interface of obj

interfaceOf

public static boolean interfaceOf(java.lang.Object obj,
                                  java.lang.Class<?> interfaceClass)

Tests if an object properly implements the specified interface.

Parameters:

obj - Object to test

interfaceClass - Class to test against

Returns:

true if interfaceClass is an interface of obj

interfaceOf

public static boolean interfaceOf(java.lang.Class<?> objectClass,
                                  java.lang.Class<?> interfaceClass)

Tests if a class properly implements the specified interface.

Parameters:

objectClass - Class to test

interfaceClass - Class to test against

Returns:

true if interfaceClass is an interface of objectClass

isOrSubOf

public static boolean isOrSubOf(java.lang.Class<?> objectClass,
                                java.lang.String parentName)
                         throws java.lang.ClassNotFoundException

Tests if a class is a class of or a sub-class of the parent.

Parameters:

objectClass - Class to test

parentName - Name of the parent class to test against

Returns:

true if objectClass is a class of or a sub-class of the parent

Throws:

java.lang.ClassNotFoundException

isOrSubOf

public static boolean isOrSubOf(java.lang.Class<?> objectClass,
                                java.lang.Object parentObject)

Tests if a class is a class of or a sub-class of the parent.

Parameters:

objectClass - Class to test

parentObject - Object to test against

Returns:

true if objectClass is a class of or a sub-class of the parent

isOrSubOf

public static boolean isOrSubOf(java.lang.Object obj,
                                java.lang.String parentName)
                         throws java.lang.ClassNotFoundException

Tests if an object is an instance of or a sub-class of the parent.

Parameters:

obj - Object to test

parentName - Name of the parent class to test against

Returns:

true if obj is an instance of or a sub-class of the parent

Throws:

java.lang.ClassNotFoundException

isOrSubOf

public static boolean isOrSubOf(java.lang.Object obj,
                                java.lang.Object parentObject)

Tests if an object is an instance of or a sub-class of the parent.

Parameters:

obj - Object to test

parentObject - Object to test against

Returns:

true if obj is an instance of or a sub-class of the parent

isOrSubOf

public static boolean isOrSubOf(java.lang.Object obj,
                                java.lang.Class<?> parentClass)

Tests if an object is an instance of or a sub-class of the parent.

Parameters:

obj - Object to test

parentClass - Class to test against

Returns:

true if obj is an instance of or a sub-class of the parent

isOrSubOf

public static boolean isOrSubOf(java.lang.Class<?> objectClass,
                                java.lang.Class<?> parentClass)

Tests if a class is a class of or a sub-class of the parent.

Parameters:

objectClass - Class to test

parentClass - Class to test against

Returns:

true if objectClass is a class of or a sub-class of the parent

instanceOf

public static boolean instanceOf(java.lang.Class<?> objectClass,
                                 java.lang.Object typeObject)

Tests if a class is a class of a sub-class of or properly implements an interface.

Parameters:

objectClass - Class to test

typeObject - Object to test against

Returns:

true if objectClass is a class of a sub-class of, or properly implements an interface

instanceOf

public static boolean instanceOf(java.lang.Class<?> objectClass,
                                 java.lang.String typeName)

Tests if a class is a class of a sub-class of or properly implements an interface.

Parameters:

objectClass - Class to test

typeName - name to test against

Returns:

true if objectClass is a class or a sub-class of, or properly implements an interface

instanceOf

public static boolean instanceOf(java.lang.Object obj,
                                 java.lang.Object typeObject)

Tests if an object is an instance of a sub-class of or properly implements an interface.

Parameters:

obj - Object to test

typeObject - Object to test against

Returns:

true if obj is an instance of a sub-class of, or properly implements an interface

instanceOf

public static boolean instanceOf(java.lang.Object obj,
                                 java.lang.String typeName)

Tests if an object is an instance of a sub-class of or properly implements an interface.

Parameters:

obj - Object to test

typeName - name to test against

Returns:

true if obj is an instance of a sub-class of, or properly implements an interface

instanceOf

public static boolean instanceOf(java.lang.Class<?> objectClass,
                                 java.lang.String typeName,
                                 java.lang.ClassLoader loader)

Tests if a class is a class of a sub-class of or properly implements an interface.

Parameters:

objectClass - Class to test

typeName - Object to test against

loader -

Returns:

true if objectClass is a class of a sub-class of, or properly implements an interface

instanceOf

public static boolean instanceOf(java.lang.Object obj,
                                 java.lang.String typeName,
                                 java.lang.ClassLoader loader)

Tests if an object is an instance of a sub-class of or properly implements an interface.

Parameters:

obj - Object to test

typeName - Object to test against

loader -

Returns:

true if obj is an instance of a sub-class of, or properly implements an interface

loadInfoClass

public static java.lang.Class<?> loadInfoClass(java.lang.String typeName,
                                               java.lang.ClassLoader loader)

instanceOf

public static boolean instanceOf(java.lang.Object obj,
                                 java.lang.Class<?> typeClass)

Tests if an object is an instance of a sub-class of or properly implements an interface.

Parameters:

obj - Object to test

typeClass - Class to test against

Returns:

true if obj is an instance of a sub-class of typeClass

instanceOf

public static boolean instanceOf(java.lang.Class<?> objectClass,
                                 java.lang.Class<?> typeClass)

Tests if a class is a class of a sub-class of or properly implements an interface.

Parameters:

objectClass - Class to test

typeClass - Class to test against

Returns:

true if objectClass is a class or sub-class of, or implements typeClass

simpleTypeConvert

public static java.lang.Object simpleTypeConvert(java.lang.Object obj,
                                                 java.lang.String type,
                                                 java.lang.String format,
                                                 java.util.Locale locale,
                                                 boolean noTypeFail)
                                          throws GeneralException

Throws:

GeneralException

simpleTypeConvert

public static java.lang.Object simpleTypeConvert(java.lang.Object obj,
                                                 java.lang.String type,
                                                 java.lang.String format,
                                                 java.util.TimeZone timeZone,
                                                 java.util.Locale locale,
                                                 boolean noTypeFail)
                                          throws GeneralException

Converts the passed object to the named simple type. Supported types include: String, Boolean, Double, Float, Long, Integer, Date (java.sql.Date), Time, Timestamp, TimeZone;

Parameters:

obj - Object to convert

type - Optional Java class name of type to convert to. A null or empty String will return the original object.

format - Optional (can be null) format string for Date, Time, Timestamp

timeZone - Optional (can be null) TimeZone for converting dates and times

locale - Optional (can be null) Locale for formatting and parsing Double, Float, Long, Integer

noTypeFail - Fail (Exception) when no type conversion is available, false will return the primary object

Returns:

the converted value

Throws:

GeneralException

simpleTypeConvert

public static java.lang.Object simpleTypeConvert(java.lang.Object obj,
                                                 java.lang.String type,
                                                 java.lang.String format,
                                                 java.util.Locale locale)
                                          throws GeneralException

Throws:

GeneralException

doRealCompare

public static java.lang.Boolean doRealCompare(java.lang.Object value1,
                                              java.lang.Object value2,
                                              java.lang.String operator,
                                              java.lang.String type,
                                              java.lang.String format,
                                              java.util.List<java.lang.Object> messages,
                                              java.util.Locale locale,
                                              java.lang.ClassLoader loader,
                                              boolean value2InlineConstant)

isEmpty

public static boolean isEmpty(java.lang.Object value)