ca.uhn.cache
Interface IQuery

All Known Implementing Classes:

Query

public interface IQuery

Represents a conjunction of IQueryParams that scopes a set of results.

Version:

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

Author:

Alexei Guevara, Bryan Tripp

Method Summary

void	addParameter(IQueryParam theParam)
IQueryParam	getParamByDimension(IDimension theDimension)
java.util.Set	getParameters()
boolean	isEmpty()

Method Detail

addParameter

public void addParameter(IQueryParam theParam)

Parameters:

theParam - a parameter for a query, which is conjunctive with other parameters. The parameter must be defined along a different IDimension than existing parameters.

getParameters

public java.util.Set getParameters()

Returns:

all the IQueryParams that make up this query

getParamByDimension

public IQueryParam getParamByDimension(IDimension theDimension)

Parameters:

theDimension - The specified dimension.

Returns:

The IQueryParam having the specified dimension, or null if none has it.

isEmpty

public boolean isEmpty()

Returns:

true if this query contains no parameters.