Package com.tangosol.coherence.rest.query

Class QueryEngineRegistry

java.lang.Object

com.tangosol.coherence.rest.query.QueryEngineRegistry

public class QueryEngineRegistry
extends Object

A registry for QueryEngine instances.

Author:

ic 2011.12.03

Field Summary

Fields

Modifier and Type	Field	Description
protected Map<String,QueryEngine>	m_mapQueryEngines	A map of registered QueryEngines, keyed by engine names.

Constructor Summary

Constructors

Constructor	Description
QueryEngineRegistry()	Construct a QueryEngineRegistry instance.
QueryEngineRegistry(Collection<? extends QueryEngineConfig> colConfig)	Construct a QueryEngineRegistry instance.

Method Summary

Modifier and Type	Method	Description
protected static QueryEngine	createQueryEngine(Class clzQueryEngine)	Create a query engine instance.
QueryEngine	getQueryEngine(String sName)	Return a query engine for the specified name.
void	registerQueryEngine(String sName, QueryEngine queryEngine)	Register a query engine for the specified name.
void	registerQueryEngine(String sName, Class clzQueryEngine)	Register a query engine for the specified name.

Methods inherited from class java.lang.Object

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

Field Details

m_mapQueryEngines

protected Map<String,QueryEngine> m_mapQueryEngines

A map of registered QueryEngines, keyed by engine names.

Constructor Details

QueryEngineRegistry

public QueryEngineRegistry()

Construct a QueryEngineRegistry instance.

Invoking this constructor will register a CoherenceQueryLanguageEngine as the default query engine.

See Also:

• CoherenceQueryLanguageEngine

QueryEngineRegistry

public QueryEngineRegistry(Collection<? extends QueryEngineConfig> colConfig)

Construct a QueryEngineRegistry instance.

Invoking this constructor will register a CoherenceQueryLanguageEngine as the default query engine. Any of provided configurations with name "DEFAULT" will override this one as default query engine.

Parameters:

colConfig - query engine configurations to be registered

Method Details

registerQueryEngine

public void registerQueryEngine(String sName,
 Class clzQueryEngine)

Register a query engine for the specified name.

Parameters:

sName - query engine name

clzQueryEngine - query engine class

registerQueryEngine

public void registerQueryEngine(String sName,
 QueryEngine queryEngine)

Register a query engine for the specified name.

Parameters:

sName - query engine name

queryEngine - query engine

getQueryEngine

public QueryEngine getQueryEngine(String sName)

Return a query engine for the specified name.

If none found, the default query engine will be returned.

Parameters:

sName - name of the query engine

Returns:

query engine for the specified name or default query engine

createQueryEngine

protected static QueryEngine createQueryEngine(Class clzQueryEngine)

Create a query engine instance.

Parameters:

clzQueryEngine - query engine class

Returns:

query engine instance