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MutablePropertyValues (Spring Framework) - Spring Framework 1.2.9 API 文档英文版

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org.springframework.beans
Class MutablePropertyValues

java.lang.Object
  org.springframework.beans.MutablePropertyValues

All Implemented Interfaces:

Serializable, PropertyValues

Direct Known Subclasses:

ServletRequestParameterPropertyValues

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public class MutablePropertyValues
extends Object
implements PropertyValues, Serializable

Default implementation of the PropertyValues interface. Allows simple manipulation of properties, and provides constructors to support deep copy and construction from a Map.

Since:

13 May 2001

Author:

Rod Johnson, Juergen Hoeller, Rob Harrop

See Also:

Serialized Form

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Constructor Summary
MutablePropertyValues()           Creates a new empty MutablePropertyValues object.
MutablePropertyValues(Map original)           Construct a new PropertyValues object from a Map.
MutablePropertyValues(PropertyValues original)           Deep copy constructor.

 

Method Summary
MutablePropertyValues	addPropertyValue(PropertyValue pv)           Add a PropertyValue object, replacing any existing one for the corresponding property.
void	addPropertyValue(String propertyName, Object propertyValue)           Overloaded version of addPropertyValue that takes a property name and a property value.
MutablePropertyValues	addPropertyValues(Map other)           Add all property values from the given Map.
MutablePropertyValues	addPropertyValues(PropertyValues other)           Copy all given PropertyValues into this object.
PropertyValues	changesSince(PropertyValues old)           Return the changes since the previous PropertyValues.
void	clear()           Clear this holder, removing all PropertyValues.
boolean	contains(String propertyName)           Is there a property value for this property?
PropertyValue	getPropertyValue(String propertyName)           Return the property value with the given name, if any.
PropertyValue[]	getPropertyValues()           Return an array of the PropertyValue objects held in this object.
boolean	isEmpty()
void	removePropertyValue(PropertyValue pv)           Remove the given PropertyValue, if contained.
void	removePropertyValue(String propertyName)           Overloaded version of removePropertyValue that takes a property name.
void	setPropertyValueAt(PropertyValue pv, int i)           Modify a PropertyValue object held in this object.
String	toString()

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Constructor Detail

MutablePropertyValues

public MutablePropertyValues()

Creates a new empty MutablePropertyValues object. Property values can be added with the addPropertyValue methods.

See Also:

addPropertyValue(PropertyValue), addPropertyValue(String, Object)

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MutablePropertyValues

public MutablePropertyValues(PropertyValues original)

Deep copy constructor. Guarantees PropertyValue references are independent, although it can't deep copy objects currently referenced by individual PropertyValue objects.

Parameters:

original - the PropertyValues to copy

See Also:

addPropertyValues(PropertyValues)

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MutablePropertyValues

public MutablePropertyValues(Map original)

Construct a new PropertyValues object from a Map.

Parameters:

original - Map with property values keyed by property name Strings

See Also:

addPropertyValues(Map)

Method Detail

addPropertyValues

public MutablePropertyValues addPropertyValues(PropertyValues other)

Copy all given PropertyValues into this object. Guarantees PropertyValue references are independent, although it can't deep copy objects currently referenced by individual PropertyValue objects.

Parameters:

other - the PropertyValues to copy

Returns:

this object to allow creating objects, adding multiple PropertyValues in a single statement

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addPropertyValues

public MutablePropertyValues addPropertyValues(Map other)

Add all property values from the given Map.

Parameters:

other - Map with property values keyed by property name, which must be a String

Returns:

this object to allow creating objects, adding multiple PropertyValues in a single statement

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addPropertyValue

public MutablePropertyValues addPropertyValue(PropertyValue pv)

Add a PropertyValue object, replacing any existing one for the corresponding property.

Parameters:

pv - PropertyValue object to add

Returns:

this object to allow creating objects, adding multiple PropertyValues in a single statement

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addPropertyValue

public void addPropertyValue(String propertyName,
                             Object propertyValue)

Overloaded version of addPropertyValue that takes a property name and a property value.

Parameters:

propertyName - name of the property

propertyValue - value of the property

See Also:

addPropertyValue(PropertyValue)

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setPropertyValueAt

public void setPropertyValueAt(PropertyValue pv,
                               int i)

Modify a PropertyValue object held in this object. Indexed from 0.

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removePropertyValue

public void removePropertyValue(String propertyName)

Overloaded version of removePropertyValue that takes a property name.

Parameters:

propertyName - name of the property

See Also:

removePropertyValue(PropertyValue)

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removePropertyValue

public void removePropertyValue(PropertyValue pv)

Remove the given PropertyValue, if contained.

Parameters:

pv - the PropertyValue to remove

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clear

public void clear()

Clear this holder, removing all PropertyValues.

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getPropertyValues

public PropertyValue[] getPropertyValues()

Description copied from interface: PropertyValues

Return an array of the PropertyValue objects held in this object.

Specified by:

getPropertyValues in interface PropertyValues

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getPropertyValue

public PropertyValue getPropertyValue(String propertyName)

Description copied from interface: PropertyValues

Return the property value with the given name, if any.

Specified by:

getPropertyValue in interface PropertyValues

Parameters:

propertyName - the name to search for

Returns:

the property value, or null

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contains

public boolean contains(String propertyName)

Description copied from interface: PropertyValues

Is there a property value for this property?

Specified by:

contains in interface PropertyValues

Parameters:

propertyName - the name of the property we're interested in

Returns:

whether there is a property value for this property

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isEmpty

public boolean isEmpty()

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changesSince

public PropertyValues changesSince(PropertyValues old)

Description copied from interface: PropertyValues

Return the changes since the previous PropertyValues. Subclasses should also override equals.

Specified by:

changesSince in interface PropertyValues

Parameters:

old - old property values

Returns:

PropertyValues updated or new properties. Return empty PropertyValues if there are no changes.

See Also:

Object.equals(java.lang.Object)

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toString

public String toString()

Overrides:

toString in class Object

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