org.objectweb.jonas_ejb.container.jorm.MedorFactory Class Reference

Inherits org.objectweb.jonas_ejb.container.jorm.JormFactory.

Inherited by org.objectweb.jonas_ejb.container.jorm.RdbFactory.

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Public Member Functions
synchronized QueryEvaluator	getOptimizedRequest (MethodCmp2Desc methodDesc) throws MedorException
TupleCollection	evaluate (Object conn, int methodIndex, ParameterOperand[] parameters) throws MedorException
void	init (EntityDesc ed, JContainer c, String mapperName)
Protected Attributes
QueryTransformer	queryTransformer = null

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Detailed Description

This class does the initialisation of Medor and permits to access to the query. The optimisation of the query tree is done during the first time that it is used.

Author:

S.Chassande-Barrioz

Definition at line 74 of file MedorFactory.java.

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Member Function Documentation

TupleCollection org.objectweb.jonas_ejb.container.jorm.MedorFactory.evaluate (  Object  conn, int  methodIndex, ParameterOperand[]  parameters )  throws MedorException

It evaluate an optimized medor request according to the specified parameters To evalute the medor request the query evaluator is used. Parameters: conn  is the connection handle methodIndex  is method index which permits to find a medor request. parameters  is the parameters (key=parameter name / value=parameter value) Returns: TupleCollection is the result of the request Definition at line 169 of file MedorFactory.java. References org.objectweb.jonas_ejb.lib.EjbqlLimiterRange.getKind(), org.objectweb.jonas_ejb.deployment.api.MethodDesc.getMethod(), org.objectweb.jonas_ejb.deployment.api.MethodCmp2Desc.getPrefetch(), org.objectweb.jonas_ejb.lib.EjbqlLimiterRange.getValue(), and org.objectweb.jonas_ejb.lib.EjbqlLimiterRange.KIND_PARAMETER.

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synchronized QueryEvaluator org.objectweb.jonas_ejb.container.jorm.MedorFactory.getOptimizedRequest (  MethodCmp2Desc  methodDesc  )  throws MedorException

It retrieves a medor request which is evaluable and optimized. The method index is translate into a request index, then the found request is optimized if it is not already. Parameters: methodDesc  is the MethodCmp2Desc of the finder or select method. Returns: the QueryTree optimized which is associated to the method index Definition at line 112 of file MedorFactory.java. References org.objectweb.jonas_ejb.lib.EjbqlQueryTreeHolder.getPrefetchIndex(), org.objectweb.jonas_ejb.lib.EjbqlQueryTreeHolder.getQueryOptimizer(), org.objectweb.jonas_ejb.container.jorm.MedorFactory.queryTransformer, and org.objectweb.jonas_ejb.lib.EjbqlQueryTreeHolder.setQueryOptimizer().

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void org.objectweb.jonas_ejb.container.jorm.MedorFactory.init (  EntityDesc  ed, JContainer  c, String  mapperName )

Initialization of the factory. This is called just after the newInstance() from the JContainer (addBean method) Reimplemented from org.objectweb.jonas_ejb.container.jorm.JormFactory. Reimplemented in org.objectweb.jonas_ejb.container.jorm.RdbFactory. Definition at line 249 of file MedorFactory.java. References org.objectweb.jonas_ejb.deployment.api.DeploymentDescEjb2.getJormManager(), org.objectweb.jonas_ejb.deployment.api.DeploymentDesc.logger, and org.objectweb.jonas_ejb.deployment.api.BeanDesc.logger.

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Member Data Documentation

QueryTransformer org.objectweb.jonas_ejb.container.jorm.MedorFactory.queryTransformer = null [protected]

This field references the query transformer which must be used to optimize the medor requests. Definition at line 80 of file MedorFactory.java. Referenced by org.objectweb.jonas_ejb.container.jorm.MedorFactory.getOptimizedRequest().

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The documentation for this class was generated from the following file:

• src/org/objectweb/jonas_ejb/container/jorm/MedorFactory.java

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