ca.uhn.cache
Interface IDataItem

All Known Implementing Classes:

DataItem

public interface IDataItem

Represents an individual item stored by a cache. It is only defined in terms of a ParamSpace (see getProjection()).

Version:

$Revision: 1.1 $ updated on $Date: 2005/01/24 22:52:08 $ by $Author: bryan_tripp $

Author:

Bryan Tripp

Method Summary

java.lang.String	getId()
java.util.Date	getLastUpdate()
IQuery	getProjection()
java.io.Serializable	getValue()
VolatilityEnum	getVolatility()

Method Detail

getProjection

public IQuery getProjection()

Returns:

the location of the IDataItem in the (implicitly) associated ParamSpace

getId

public java.lang.String getId()

Returns:

a unique ID for the data item (assigned by the IDataSource that created this IDataItem)

getValue

public java.io.Serializable getValue()

Returns:

the domain-specific value wrapped by this IDataItem

getVolatility

public VolatilityEnum getVolatility()

Returns:

the item's volatility.

getLastUpdate

public java.util.Date getLastUpdate()

Returns:

the time at which the item was last updated (recent end of possible range if unknown)