org.nuiton.util.beans

Class BeanUtil

java.lang.Object

org.nuiton.util.beans.BeanUtil

public class BeanUtil
extends Object

Usefull methods around the PropertyChangeListener.

Since:

1.4.1

Author:

Tony Chemit - chemit@codelutin.com

Field Summary

Fields

Modifier and Type	Field and Description
static String	ADD_PROPERTY_CHANGE_LISTENER
static com.google.common.base.Predicate<PropertyDescriptor>	IS_READ_AND_WRITE_DESCRIPTOR Is a property is readable and writable ?
static com.google.common.base.Predicate<PropertyDescriptor>	IS_READ_DESCRIPTOR Is a property is readable ?
static com.google.common.base.Predicate<PropertyDescriptor>	IS_WRITE_DESCRIPTOR Is a property is writable ?
static String	REMOVE_PROPERTY_CHANGE_LISTENER

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BeanUtil()

Method Summary

Modifier and Type	Method and Description
static void	addPropertyChangeListener(PropertyChangeListener listener, Object bean) Add the given listener to the given bean using the normalized method named addPropertyChangeListener.
static Set<PropertyDescriptor>	getDescriptors(Class<?> beanType, com.google.common.base.Predicate<PropertyDescriptor> predicate) Scan the given type and obtain PropertyDescriptor given the (optional) predicate (except the class property of any java object).
protected static void	getDescriptors(Class<?> beanType, com.google.common.base.Predicate<PropertyDescriptor> predicate, Map<String,PropertyDescriptor> result, Set<Class<?>> exploredTypes)
static Method	getMutator(Object bean, String property)
static Set<String>	getReadableProperties(Class<?> beanType) Obtains all readable properties from a given type.
protected static void	getReadableProperties(Class<?> beanType, Set<String> result)
protected static void	getReadableProperties(Class<?> beanType, Set<String> result, Set<Class<?>> exploredTypes)
static Class<?>	getReadableType(Class<?> beanType, String propertyName)
static Set<String>	getWriteableProperties(Class<?> beanType) Obtains all writeable properties from a given type.
protected static void	getWriteableProperties(Class<?> beanType, Set<String> result)
protected static void	getWriteableProperties(Class<?> beanType, Set<String> result, Set<Class<?>> exploredTypes)
static boolean	isJavaBeanCompiliant(Class<?> type) Test if the given type is JavaBean compiliant, says that it has two public methods : addPropertyChangeListener removePropertyChangeListener
static boolean	isNestedReadableProperty(Class<?> beanType, String propertyName) Obtains all readable properties from a given type.
static void	removePropertyChangeListener(PropertyChangeListener listener, Object bean) Remove the given listener from the given bean using the normalized method named removePropertyChangeListener.

Methods inherited from class java.lang.Object

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

Field Detail

ADD_PROPERTY_CHANGE_LISTENER

public static final String ADD_PROPERTY_CHANGE_LISTENER

See Also:

Constant Field Values

REMOVE_PROPERTY_CHANGE_LISTENER

public static final String REMOVE_PROPERTY_CHANGE_LISTENER

See Also:

Constant Field Values

IS_READ_DESCRIPTOR

public static final com.google.common.base.Predicate<PropertyDescriptor> IS_READ_DESCRIPTOR

Is a property is readable ?

Since:

2.5.11

IS_WRITE_DESCRIPTOR

public static final com.google.common.base.Predicate<PropertyDescriptor> IS_WRITE_DESCRIPTOR

Is a property is writable ?

Since:

2.5.11

IS_READ_AND_WRITE_DESCRIPTOR

public static final com.google.common.base.Predicate<PropertyDescriptor> IS_READ_AND_WRITE_DESCRIPTOR

Is a property is readable and writable ?

Since:

2.5.11

Constructor Detail

BeanUtil

protected BeanUtil()

Method Detail

isJavaBeanCompiliant

public static boolean isJavaBeanCompiliant(Class<?> type)

Test if the given type is JavaBean compiliant, says that it has two public methods :

• addPropertyChangeListener
• removePropertyChangeListener

Parameters:

type - type to test

Returns:

true if type is Javabean compiliant, false otherwise

Since:

2.0

addPropertyChangeListener

public static void addPropertyChangeListener(PropertyChangeListener listener,
                                             Object bean)
                                      throws InvocationTargetException,
                                             NoSuchMethodException,
                                             IllegalAccessException

Add the given listener to the given bean using the normalized method named addPropertyChangeListener.

Parameters:

listener - the listener to add

bean - the bean on which the listener is added

Throws:

InvocationTargetException - if could not invoke the method addPropertyChangeListener

NoSuchMethodException - if method addPropertyChangeListener does not exist on given bean

IllegalAccessException - if an illegal access occurs when invoking the method addPropertyChangeListener

removePropertyChangeListener

public static void removePropertyChangeListener(PropertyChangeListener listener,
                                                Object bean)
                                         throws InvocationTargetException,
                                                NoSuchMethodException,
                                                IllegalAccessException

Remove the given listener from the given bean using the normalized method named removePropertyChangeListener.

Parameters:

listener - the listener to remove

bean - the bean on which the listener is removed

Throws:

InvocationTargetException - if could not invoke the method removePropertyChangeListener

NoSuchMethodException - if method removePropertyChangeListener does not exist on given bean

IllegalAccessException - if an illegal access occurs when invoking the method removePropertyChangeListener

getReadableProperties

public static Set<String> getReadableProperties(Class<?> beanType)

Obtains all readable properties from a given type.

Parameters:

beanType - the type to seek

Returns:

the set of all readable properties for the given type

Since:

2.0

getWriteableProperties

public static Set<String> getWriteableProperties(Class<?> beanType)

Obtains all writeable properties from a given type.

Parameters:

beanType - the type to seek

Returns:

the set of all writeable properties for the given type

Since:

2.0

isNestedReadableProperty

public static boolean isNestedReadableProperty(Class<?> beanType,
                                               String propertyName)

Obtains all readable properties from a given type.

Parameters:

beanType - the type to seek

propertyName - FIXME

Returns:

the set of all readable properties for the given type

Since:

2.0

getReadableType

public static Class<?> getReadableType(Class<?> beanType,
                                       String propertyName)

getDescriptors

public static Set<PropertyDescriptor> getDescriptors(Class<?> beanType,
                                                     com.google.common.base.Predicate<PropertyDescriptor> predicate)

Scan the given type and obtain PropertyDescriptor given the (optional) predicate (except the class property of any java object). Note: If no predicate is given, then all descriptors are returned.

Parameters:

beanType - the bean type to scan

predicate - the optional predicate to keep descriptor

Returns:

set of all matching descriptors

Since:

2.6.11

getMutator

public static Method getMutator(Object bean,
                                String property)

getDescriptors

protected static void getDescriptors(Class<?> beanType,
                                     com.google.common.base.Predicate<PropertyDescriptor> predicate,
                                     Map<String,PropertyDescriptor> result,
                                     Set<Class<?>> exploredTypes)

getReadableProperties

protected static void getReadableProperties(Class<?> beanType,
                                            Set<String> result,
                                            Set<Class<?>> exploredTypes)

getReadableProperties

protected static void getReadableProperties(Class<?> beanType,
                                            Set<String> result)

getWriteableProperties

protected static void getWriteableProperties(Class<?> beanType,
                                             Set<String> result,
                                             Set<Class<?>> exploredTypes)

getWriteableProperties

protected static void getWriteableProperties(Class<?> beanType,
                                             Set<String> result)