org.springframework.beans
Class MutablePropertyValues

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

All Implemented Interfaces:

java.io.Serializable, PropertyValues

Direct Known Subclasses:

GenericFilterBean.FilterConfigPropertyValues, GenericPortletBean.PortletConfigPropertyValues, HttpServletBean.ServletConfigPropertyValues, PortletRequestParameterPropertyValues, ServletRequestParameterPropertyValues

public class MutablePropertyValues
extends java.lang.Object
implements PropertyValues, java.io.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

Field Summary

private boolean	converted
private java.util.Set<java.lang.String>	processedProperties
private java.util.List<PropertyValue>	propertyValueList

Constructor Summary

MutablePropertyValues()
Creates a new empty MutablePropertyValues object.

MutablePropertyValues(java.util.List<PropertyValue> propertyValueList)
Construct a new MutablePropertyValues object using the given List of PropertyValue objects as-is.

MutablePropertyValues(java.util.Map<?,?> original)
Construct a new MutablePropertyValues object from a Map.

MutablePropertyValues(PropertyValues original)
Deep copy constructor.

Method Summary

MutablePropertyValues	add(java.lang.String propertyName, java.lang.Object propertyValue) Add a PropertyValue object, replacing any existing one for the corresponding property or getting merged with it (if applicable).
MutablePropertyValues	addPropertyValue(PropertyValue pv) Add a PropertyValue object, replacing any existing one for the corresponding property or getting merged with it (if applicable).
void	addPropertyValue(java.lang.String propertyName, java.lang.Object propertyValue) Overloaded version of addPropertyValue that takes a property name and a property value.
MutablePropertyValues	addPropertyValues(java.util.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.
boolean	contains(java.lang.String propertyName) Is there a property value (or other processing entry) for this property?
boolean	equals(java.lang.Object other)
PropertyValue	getPropertyValue(java.lang.String propertyName) Return the property value with the given name, if any.
java.util.List<PropertyValue>	getPropertyValueList() Return the underlying List of PropertyValue objects in its raw form.
PropertyValue[]	getPropertyValues() Return an array of the PropertyValue objects held in this object.
int	hashCode()
boolean	isConverted() Return whether this holder contains converted values only (true), or whether the values still need to be converted (false).
boolean	isEmpty() Does this holder not contain any PropertyValue objects at all?
private PropertyValue	mergeIfRequired(PropertyValue newPv, PropertyValue currentPv) Merges the value of the supplied 'new' PropertyValue with that of the current PropertyValue if merging is supported and enabled.
void	registerProcessedProperty(java.lang.String propertyName) Register the specified property as "processed" in the sense of some processor calling the corresponding setter method outside of the PropertyValue(s) mechanism.
void	removePropertyValue(PropertyValue pv) Remove the given PropertyValue, if contained.
void	removePropertyValue(java.lang.String propertyName) Overloaded version of removePropertyValue that takes a property name.
void	setConverted() Mark this holder as containing converted values only (i.e.
void	setPropertyValueAt(PropertyValue pv, int i) Modify a PropertyValue object held in this object.
int	size() Return the number of PropertyValue entries in the list.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

propertyValueList

private final java.util.List<PropertyValue> propertyValueList

processedProperties

private java.util.Set<java.lang.String> processedProperties

converted

private volatile boolean converted

Constructor Detail

MutablePropertyValues

public MutablePropertyValues()

Creates a new empty MutablePropertyValues object.

Property values can be added with the add method.

See Also:

add(String, Object)

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)

MutablePropertyValues

public MutablePropertyValues(java.util.Map<?,?> original)

Construct a new MutablePropertyValues object from a Map.

Parameters:

original - Map with property values keyed by property name Strings

See Also:

addPropertyValues(Map)

MutablePropertyValues

public MutablePropertyValues(java.util.List<PropertyValue> propertyValueList)

Construct a new MutablePropertyValues object using the given List of PropertyValue objects as-is.

This is a constructor for advanced usage scenarios. It is not intended for typical programmatic use.

Parameters:

propertyValueList - List of PropertyValue objects

Method Detail

getPropertyValueList

public java.util.List<PropertyValue> getPropertyValueList()

Return the underlying List of PropertyValue objects in its raw form. The returned List can be modified directly, although this is not recommended.

This is an accessor for optimized access to all PropertyValue objects. It is not intended for typical programmatic use.

size

public int size()

Return the number of PropertyValue entries in the list.

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 in order to allow for adding multiple property values in a chain

addPropertyValues

public MutablePropertyValues addPropertyValues(java.util.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 in order to allow for adding multiple property values in a chain

addPropertyValue

public MutablePropertyValues addPropertyValue(PropertyValue pv)

Add a PropertyValue object, replacing any existing one for the corresponding property or getting merged with it (if applicable).

Parameters:

pv - PropertyValue object to add

Returns:

this in order to allow for adding multiple property values in a chain

addPropertyValue

public void addPropertyValue(java.lang.String propertyName,
                             java.lang.Object propertyValue)

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

Note: As of Spring 3.0, we recommend using the more concise and chaining-capable variant add(java.lang.String, java.lang.Object).

Parameters:

propertyName - name of the property

propertyValue - value of the property

See Also:

addPropertyValue(PropertyValue)

add

public MutablePropertyValues add(java.lang.String propertyName,
                                 java.lang.Object propertyValue)

Add a PropertyValue object, replacing any existing one for the corresponding property or getting merged with it (if applicable).

Parameters:

propertyName - name of the property

propertyValue - value of the property

Returns:

this in order to allow for adding multiple property values in a chain

setPropertyValueAt

public void setPropertyValueAt(PropertyValue pv,
                               int i)

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

mergeIfRequired

private PropertyValue mergeIfRequired(PropertyValue newPv,
                                      PropertyValue currentPv)

Merges the value of the supplied 'new' PropertyValue with that of the current PropertyValue if merging is supported and enabled.

See Also:

Mergeable

removePropertyValue

public void removePropertyValue(PropertyValue pv)

Remove the given PropertyValue, if contained.

Parameters:

pv - the PropertyValue to remove

removePropertyValue

public void removePropertyValue(java.lang.String propertyName)

Overloaded version of removePropertyValue that takes a property name.

Parameters:

propertyName - name of the property

See Also:

removePropertyValue(PropertyValue)

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

getPropertyValue

public PropertyValue getPropertyValue(java.lang.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

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)

contains

public boolean contains(java.lang.String propertyName)

Description copied from interface: PropertyValues

Is there a property value (or other processing entry) 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

isEmpty

public boolean isEmpty()

Description copied from interface: PropertyValues

Does this holder not contain any PropertyValue objects at all?

Specified by:

isEmpty in interface PropertyValues

registerProcessedProperty

public void registerProcessedProperty(java.lang.String propertyName)

Register the specified property as "processed" in the sense of some processor calling the corresponding setter method outside of the PropertyValue(s) mechanism.

This will lead to true being returned from a contains(java.lang.String) call for the specified property.

Parameters:

propertyName - the name of the property.

setConverted

public void setConverted()

Mark this holder as containing converted values only (i.e. no runtime resolution needed anymore).

isConverted

public boolean isConverted()

Return whether this holder contains converted values only (true), or whether the values still need to be converted (false).

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object