ome.services.query

Class StringQuerySource

java.lang.Object

ome.services.query.QuerySource

ome.services.query.StringQuerySource

public class StringQuerySource
extends QuerySource

interprets the query id as an HQL query. In this implementation, no parsing is done at lookup or creation-time, but an implementation which does so is conceivable. The id itself is added to the list of parameters with the name StringQuery.STRING This query source should be placed at the end of the array of query sources provided to QueryFactory because it will always return a Query regardless of the id. An exception will be thrown at execution time if the HQL is invalid.

Since:

OMERO 3.0

Version:

1.0 (Internal version: $Rev$ $Date$)

Author:

Josh Moore, josh.moore@gmx.de

Constructor Summary

Constructors

Constructor and Description
StringQuerySource() Default constructor, used primarily for testing.
StringQuerySource(SqlAction sql)

Method Summary

Modifier and Type	Method and Description
Query	lookup(String queryID, Parameters parameters) map the queryID argument to some Query instance (including null).

Methods inherited from class java.lang.Object

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

Constructor Detail

StringQuerySource

public StringQuerySource()

Default constructor, used primarily for testing. Passes as null SqlAction to created StringQuery instances.

StringQuerySource

public StringQuerySource(SqlAction sql)

Method Detail

lookup

public Query lookup(String queryID,
                    Parameters parameters)

Description copied from class: QuerySource

map the queryID argument to some Query instance (including null). This mapping can be dependent on the provided Parameters

Specified by:

lookup in class QuerySource

Parameters:

queryID - abstract identifier for the sought query.

parameters - named parameters for lookup and actual bindings.

Returns:

A possible null Query for later execution.