org.springframework.beans

类 PropertyValue

java.lang.Object

org.springframework.core.AttributeAccessorSupport

org.springframework.beans.BeanMetadataAttributeAccessor

org.springframework.beans.PropertyValue

所有已实现的接口:

Serializable, BeanMetadataElement, org.springframework.core.AttributeAccessor

public class PropertyValue
extends BeanMetadataAttributeAccessor
implements 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.

从以下版本开始:

13 May 2001

作者:

Rod Johnson, Rob Harrop, Juergen Hoeller

另请参阅:

PropertyValues, BeanWrapper, 序列化表格

构造器概要

构造器

构造器和说明
PropertyValue(PropertyValue original) Copy constructor.
PropertyValue(PropertyValue original, Object newValue) Constructor that exposes a new value for an original value holder.
PropertyValue(String name, Object value) Create a new PropertyValue instance.

方法概要

限定符和类型	方法和说明
boolean	equals(Object other)
Object	getConvertedValue() Return the converted value of this property value, after processed type conversion.
String	getName() Return the name of the property.
PropertyValue	getOriginalPropertyValue() Return the original PropertyValue instance for this value holder.
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() Return whether this is an optional value, that is, to be ignored when no corresponding property exists on the target class.
void	setConvertedValue(Object value) Set the converted value of this property value, after processed type conversion.
void	setOptional(boolean optional) Set whether this is an optional value, that is, to be ignored when no corresponding property exists on the target class.
String	toString()

从类继承的方法 org.springframework.beans.BeanMetadataAttributeAccessor

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

从类继承的方法 org.springframework.core.AttributeAccessorSupport

attributeNames, copyAttributesFrom, hasAttribute

从类继承的方法 java.lang.Object

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

构造器详细资料

PropertyValue

public PropertyValue(String name,
                     @Nullable
                     Object value)

Create a new PropertyValue instance.

参数:

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.

参数:

original - the PropertyValue to copy (never null)

PropertyValue

public PropertyValue(PropertyValue original,
                     @Nullable
                     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.

参数:

original - the PropertyValue to link to (never null)

newValue - the new value to apply

方法详细资料

getName

public String getName()

Return the name of the property.

getValue

@Nullable
public 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.

返回:

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

setOptional

public void setOptional(boolean optional)

Set whether this is an optional value, that is, to be ignored when no corresponding property exists on the target class.

从以下版本开始:

3.0

isOptional

public boolean isOptional()

Return whether this is an optional value, that is, to be ignored when no corresponding property exists on the target class.

从以下版本开始:

3.0

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(@Nullable
                              Object value)

Set the converted value of this property value, after processed type conversion.

getConvertedValue

@Nullable
public Object getConvertedValue()

Return the converted value of this property value, after processed type conversion.

equals

public boolean equals(Object other)

覆盖:

equals 在类中 org.springframework.core.AttributeAccessorSupport

hashCode

public int hashCode()

覆盖:

hashCode 在类中 org.springframework.core.AttributeAccessorSupport

toString

public String toString()

覆盖:

toString 在类中 Object