ca.uhn.cache.impl
Class Query

java.lang.Object
  ca.uhn.cache.impl.CommonsLangObject
      ca.uhn.cache.impl.Query

All Implemented Interfaces:

IQuery, java.io.Serializable

public class Query

extends CommonsLangObject

implements IQuery, java.io.Serializable

Generic implementation of the IQuery interface.

Version:

$Revision: 1.1 $ updated on $Date: 2005/01/24 22:52:32 $ by $Author: bryan_tripp $

Author:

Alexei Guevara

See Also:

Serialized Form

Constructor Summary

Query()
Creates an empty query.

Query(IQueryParam[] theParams)
Creates a query with the provided parameters.

Method Summary

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

Methods inherited from class ca.uhn.cache.impl.CommonsLangObject

equals, hashCode, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Query

public Query()

Creates an empty query.

Query

public Query(IQueryParam[] theParams)

Creates a query with the provided parameters.

Parameters:

theParams - The query parameters.

Method Detail

addParameter

public void addParameter(IQueryParam theParam)

Specified by:

addParameter in interface IQuery

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.

See Also:

IQuery.addParameter(ca.uhn.cache.IQueryParam)

getParameters

public java.util.Set getParameters()

Specified by:

getParameters in interface IQuery

Returns:

all the IQueryParams that make up this query

See Also:

IQuery.getParameters()

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface IQuery

Returns:

true if this query contains no parameters.

getParamByDimension

public IQueryParam getParamByDimension(IDimension theDimension)

Specified by:

getParamByDimension in interface IQuery

Parameters:

theDimension - The specified dimension.

Returns:

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