org.springframework.beans

Class PropertyValue

java.lang.Object

org.springframework.core.AttributeAccessorSupport

org.springframework.beans.BeanMetadataAttributeAccessor

org.springframework.beans.PropertyValue

All Implemented Interfaces:

java.io.Serializable, BeanMetadataElement, AttributeAccessor

public class PropertyValue
extends BeanMetadataAttributeAccessor
implements java.io.Serializable

Object to hold information and value for an individual bean property. Using an object here, rather than just storing all properties in a map keyed by property name, allows for more flexibility, and the ability to handle indexed properties etc in an optimized way.

Note that the value doesn't need to be the final required type: A BeanWrapper implementation should handle any necessary conversion, as this object doesn't know anything about the objects it will be applied to.

Since:

13 May 2001

Author:

Rod Johnson, Rob Harrop, Juergen Hoeller

See Also:

PropertyValues, BeanWrapper, Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
(package private) java.lang.Boolean	conversionNecessary Package-visible field that indicates whether conversion is necessary
private boolean	converted
private java.lang.Object	convertedValue
private java.lang.String	name
private boolean	optional
(package private) java.beans.PropertyDescriptor	resolvedDescriptor Package-visible field for caching the resolved PropertyDescriptor
(package private) java.lang.Object	resolvedTokens Package-visible field for caching the resolved property path tokens
private java.lang.Object	source
private java.lang.Object	value

Constructor Summary

Constructors

Constructor and Description
PropertyValue(PropertyValue original) Copy constructor.
PropertyValue(PropertyValue original, java.lang.Object newValue) Constructor that exposes a new value for an original value holder.
PropertyValue(java.lang.String name, java.lang.Object value) Create a new PropertyValue instance.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object other)
java.lang.Object	getConvertedValue() Return the converted value of the constructor argument, after processed type conversion.
java.lang.String	getName() Return the name of the property.
PropertyValue	getOriginalPropertyValue() Return the original PropertyValue instance for this value holder.
java.lang.Object	getValue() Return the value of the property.
int	hashCode()
boolean	isConverted() Return whether this holder contains a converted value already (true), or whether the value still needs to be converted (false).
boolean	isOptional()
void	setConvertedValue(java.lang.Object value) Set the converted value of the constructor argument, after processed type conversion.
void	setOptional(boolean optional)
java.lang.String	toString()

Methods inherited from class org.springframework.beans.BeanMetadataAttributeAccessor

addMetadataAttribute, getAttribute, getMetadataAttribute, getSource, removeAttribute, setAttribute, setSource

Methods inherited from class org.springframework.core.AttributeAccessorSupport

attributeNames, copyAttributesFrom, hasAttribute

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

name

private final java.lang.String name

value

private final java.lang.Object value

source

private java.lang.Object source

optional

private boolean optional

converted

private boolean converted

convertedValue

private java.lang.Object convertedValue

conversionNecessary

volatile java.lang.Boolean conversionNecessary

Package-visible field that indicates whether conversion is necessary

resolvedTokens

transient volatile java.lang.Object resolvedTokens

Package-visible field for caching the resolved property path tokens

resolvedDescriptor

transient volatile java.beans.PropertyDescriptor resolvedDescriptor

Package-visible field for caching the resolved PropertyDescriptor

Constructor Detail

PropertyValue

public PropertyValue(java.lang.String name,
                     java.lang.Object value)

Create a new PropertyValue instance.

Parameters:

name - the name of the property (never null)

value - the value of the property (possibly before type conversion)

PropertyValue

public PropertyValue(PropertyValue original)

Copy constructor.

Parameters:

original - the PropertyValue to copy (never null)

PropertyValue

public PropertyValue(PropertyValue original,
                     java.lang.Object newValue)

Constructor that exposes a new value for an original value holder. The original holder will be exposed as source of the new holder.

Parameters:

original - the PropertyValue to link to (never null)

newValue - the new value to apply

Method Detail

getName

public java.lang.String getName()

Return the name of the property.

getValue

public java.lang.Object getValue()

Return the value of the property.

Note that type conversion will not have occurred here. It is the responsibility of the BeanWrapper implementation to perform type conversion.

getOriginalPropertyValue

public PropertyValue getOriginalPropertyValue()

Return the original PropertyValue instance for this value holder.

Returns:

the original PropertyValue (either a source of this value holder or this value holder itself).

setOptional

public void setOptional(boolean optional)

isOptional

public boolean isOptional()

isConverted

public boolean isConverted()

Return whether this holder contains a converted value already (true), or whether the value still needs to be converted (false).

setConvertedValue

public void setConvertedValue(java.lang.Object value)

Set the converted value of the constructor argument, after processed type conversion.

getConvertedValue

public java.lang.Object getConvertedValue()

Return the converted value of the constructor argument, after processed type conversion.

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class AttributeAccessorSupport

hashCode

public int hashCode()

Overrides:

hashCode in class AttributeAccessorSupport

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object