com.planetalia.dynject.sources
Class MapSource<T>

java.lang.Object
  com.planetalia.dynject.sources.MapSource<T>

All Implemented Interfaces:

IValueSource<T>

public class MapSource<T>
extends java.lang.Object
implements IValueSource<T>

Retrieves property values from a Map

Author:

Alexander Hristov

Constructor Summary

MapSource(java.util.Map<java.lang.String,T> data)
Creates a MapSource using the specified map as provider of data

Method Summary

ClassPreferences	getPropertyClass(java.lang.String propertyName) Returns the class preferences for a property
java.util.Set<java.lang.String>	getPropertyNames() Returns the set of all existing properties at the time of invocation.
java.lang.Object	getValue(java.lang.String propertyName) Provides the value of a specific property
boolean	propertyExists(java.lang.String propertyName) Checks whether a specific property exists.
void	setValue(java.lang.String propertyName, T value) Sets the value of a specific property.

Methods inherited from class java.lang.Object

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

Constructor Detail

MapSource

public MapSource(java.util.Map<java.lang.String,T> data)

Creates a MapSource using the specified map as provider of data

Parameters:

data - Map to use as data provider

Method Detail

getValue

public java.lang.Object getValue(java.lang.String propertyName)

Description copied from interface: IValueSource

Provides the value of a specific property

Specified by:

getValue in interface IValueSource<T>

Parameters:

propertyName - Name of the requested property. Assumed to exist.

Returns:

Property value

propertyExists

public boolean propertyExists(java.lang.String propertyName)

Description copied from interface: IValueSource

Checks whether a specific property exists. Not that a nonexistant property and a proprerty with a null value are not the same situation

Specified by:

propertyExists in interface IValueSource<T>

Parameters:

propertyName - Name of the requested property

Returns:

True if the property exists, false otherwise

getPropertyClass

public ClassPreferences getPropertyClass(java.lang.String propertyName)

Description copied from interface: IValueSource

Returns the class preferences for a property

Specified by:

getPropertyClass in interface IValueSource<T>

Parameters:

propertyName - Name of the property

Returns:

List of class preferences for that property

getPropertyNames

public java.util.Set<java.lang.String> getPropertyNames()

Description copied from interface: IValueSource

Returns the set of all existing properties at the time of invocation.

Specified by:

getPropertyNames in interface IValueSource<T>

Returns:

Set of property names

setValue

public void setValue(java.lang.String propertyName,
                     T value)

Description copied from interface: IValueSource

Sets the value of a specific property. It's the callers responsability to provide a correct data type for that property. This is an optional operation. Some sources do not support writing properties to them

Specified by:

setValue in interface IValueSource<T>

Parameters:

propertyName - Name of the requested property.

value - Property value.