org.eclipse.persistence.jpa.jpql.model
Class AbstractStateObjectBuilder

java.lang.Object
  org.eclipse.persistence.jpa.jpql.model.AbstractStateObjectBuilder

Direct Known Subclasses:

AbstractScalarExpressionStateObjectBuilder

public abstract class AbstractStateObjectBuilder
extends java.lang.Object

The abstract definition of a builder of a StateObject hierarchy based on a JPQL fragment that is manually created.

Version:

2.4

Author:

Pascal Filion

Since:

2.4

Constructor Summary

protected

AbstractStateObjectBuilder() Creates a new AbstractStateObjectBuilder.

Method Summary

protected void	add(StateObject stateObject) Adds the given StateObject to the stack for future use, which will be removed from the stack to complete the creation of another StateObject.
protected void	checkBuilder(IScalarExpressionStateObjectBuilder<?> builder) Makes sure the given builder is this one.
protected <T extends IScalarExpressionStateObjectBuilder<?>> void	checkBuilders(T... builders) Makes sure the given builder is this one.
protected boolean	hasStateObjects() Determines whether the stack of StateObjects is not empty.
protected StateObject	pop() Retrieves the StateObject that is on the stack.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractStateObjectBuilder

protected AbstractStateObjectBuilder()

Creates a new AbstractStateObjectBuilder.

Method Detail

add

protected void add(StateObject stateObject)

Adds the given StateObject to the stack for future use, which will be removed from the stack to complete the creation of another StateObject.

Parameters:

stateObject - The newly created StateObject

checkBuilder

protected final void checkBuilder(IScalarExpressionStateObjectBuilder<?> builder)

Makes sure the given builder is this one.

Parameters:

builder - The builder that was passed as an argument, which is only meant to create the stack of StateObjects in the right order

checkBuilders

protected final <T extends IScalarExpressionStateObjectBuilder<?>> void checkBuilders(T... builders)

Makes sure the given builder is this one.

Parameters:

builders - The builders that were passed as arguments, which is only meant to create the stack of StateObjects in the right order

hasStateObjects

protected boolean hasStateObjects()

Determines whether the stack of StateObjects is not empty.

Returns:

true if the stack is not empty; false otherwise

pop

protected final StateObject pop()

Retrieves the StateObject that is on the stack.

Returns:

The last StateObject that was added on the stack