ome.services.query

Class QueryFactory

java.lang.Object

ome.services.query.QueryFactory

public class QueryFactory
extends Object

query locator which is configured by Spring. A QueryFactory instance is created in the ome/services/services.xml Spring config and is injected with multiple "query sources". The lookup proceeds through the available query sources calling querySource.lookup(), and returns the first non-null result. If no result is found, an exception is thrown.

Since:

OMERO 3.0

Version:

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

Author:

Josh Moore, josh.moore@gmx.de

Field Summary

Fields

Modifier and Type	Field and Description
protected QuerySource[]	sources sources available for lookups.

Constructor Summary

Constructors

Constructor and Description
QueryFactory(QuerySource... querySources) main constructor which takes a non-null array of query sources as its only argument.

Method Summary

Modifier and Type	Method and Description
<T> Query<T>	lookup(String queryID, Parameters params)

Methods inherited from class java.lang.Object

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

Field Detail

sources

protected QuerySource[] sources

sources available for lookups. This array will never be null.

Constructor Detail

QueryFactory

public QueryFactory(QuerySource... querySources)

main constructor which takes a non-null array of query sources as its only argument. This array is copied, so modifications will not be noticed.

Parameters:

querySources - Array of query sources. Not null.

Method Detail

lookup

public <T> Query<T> lookup(String queryID,
                           Parameters params)

Type Parameters:

T -

Parameters:

queryID -

params -

Returns:

See above.