Package org.apache.olingo.odata2.jpa.processor.api.jpql

Class JPQLContext.JPQLContextBuilder

java.lang.Object

org.apache.olingo.odata2.jpa.processor.api.jpql.JPQLContext.JPQLContextBuilder

Enclosing class:

JPQLContext

public abstract static class JPQLContext.JPQLContextBuilder
extends Object

The abstract class is extended by specific JPQLContext builder for building JPQLContexts.

Field Summary

Fields

Modifier and Type	Field	Description
protected int	aliasCounter	alias counter is an integer counter that is incremented by "1" for every new alias name generation.
protected boolean	withPaging

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	JPQLContextBuilder()

Method Summary

Modifier and Type	Method	Description
abstract JPQLContext	build()	The abstract method is implemented by specific JPQL context builders to build JPQL Contexts.
protected String	generateJPAEntityAlias()	The method returns a system generated alias name starting with prefix "E" and ending with suffix "aliasCounter".
protected void	resetAliasCounter()	The method resets the alias counter value to "0".
protected abstract void	setResultsView(Object resultsView)	The abstract method is implemented by specific JPQL context builder.

Methods inherited from class java.lang.Object

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

Field Detail

aliasCounter

protected int aliasCounter

alias counter is an integer counter that is incremented by "1" for every new alias name generation. The value of counter is used in the generation of JPA entity alias names.

withPaging

protected boolean withPaging

Constructor Detail

JPQLContextBuilder

protected JPQLContextBuilder()

Method Detail

build

public abstract JPQLContext build()
                           throws ODataJPAModelException,
                                  ODataJPARuntimeException

The abstract method is implemented by specific JPQL context builders to build JPQL Contexts. The build method makes use of information set into the context to built JPQL Context Types.

Returns:

an instance of JPQLContext

Throws:

ODataJPAModelException

ODataJPARuntimeException

setResultsView

protected abstract void setResultsView(Object resultsView)

The abstract method is implemented by specific JPQL context builder. The method sets the OData request view into the JPQL context.

Parameters:

resultsView - is an instance representing OData request.

resetAliasCounter

protected void resetAliasCounter()

The method resets the alias counter value to "0".

generateJPAEntityAlias

protected String generateJPAEntityAlias()

The method returns a system generated alias name starting with prefix "E" and ending with suffix "aliasCounter".

Returns:

a String representing JPA entity alias name