QueryFactory (omero-server 5.5.3 API)

java.lang.Object
- ome.services.query.QueryFactory

```
public class QueryFactory
extends java.lang.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

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  protected QuerySource[] sources
  sources available for lookups.
- Constructor Summary
  
  Constructors
  Constructor Description
  
  QueryFactory(QuerySource... querySources)
  main constructor which takes a non-null array of query sources as its only argument.
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  <T> Query<T> lookup(java.lang.String queryID, ome.parameters.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(java.lang.String queryID,
                           ome.parameters.Parameters params)
```
    Type Parameters:
    
    T -
    
    Parameters:
    
    queryID -
    
    params -
    
    Returns:
    
    See above.