com.force.sdk.jpa.query
Class JPQLPartialCompiler

java.lang.Object
  com.force.sdk.jpa.query.JPQLPartialCompiler

public class JPQLPartialCompiler
extends Object

This is a utility class that will compile JPQL query fragments into expression for use. This is mostly intended to take query expressions from annotations and converting them into expression that can be appended to existing queries.

Author:

Fiaz Hossain

Constructor Summary

JPQLPartialCompiler(org.datanucleus.store.ExecutionContext ec, org.datanucleus.query.compiler.QueryCompilation compilation, Map options, Map params)
Instantiate a JPQLParser and store the symbol table from the compilation, or create a new one.

Method Summary

org.datanucleus.query.expression.Expression[]

compileOrdering(String ordering) adds the proper ordering to the parser and returns the resulting expressions.

Methods inherited from class java.lang.Object

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

Constructor Detail

JPQLPartialCompiler

public JPQLPartialCompiler(org.datanucleus.store.ExecutionContext ec,
                           org.datanucleus.query.compiler.QueryCompilation compilation,
                           Map options,
                           Map params)

Instantiate a JPQLParser and store the symbol table from the compilation, or create a new one.

Parameters:

ec - the current execution context

compilation - possibly null, contains components of a query string

options - JPQL parser options

params - parameters for the parser

Method Detail

compileOrdering

public org.datanucleus.query.expression.Expression[] compileOrdering(String ordering)

adds the proper ordering to the parser and returns the resulting expressions.

Parameters:

ordering - the orderBy string

Returns:

an ordered expression array