org.eclipse.persistence.jpa.jpql.tools.resolver

Class NumericResolver

java.lang.Object

org.eclipse.persistence.jpa.jpql.tools.resolver.Resolver

org.eclipse.persistence.jpa.jpql.tools.resolver.NumericResolver

public class NumericResolver
extends Resolver

This Resolver is responsible to return the numeric type for a list of Resolvers.

The result of a CASE expression, COALESCE expression, NULLIF expression, or arithmetic expression (+, -, *, /) is determined by applying the following rule to its operands.

• If there is an operand of type Double or double, the result of the operation is of type Double;
• otherwise, if there is an operand of type Float or float, the result of the operation is of type Float;
• otherwise, if there is an operand of type BigDecimal, the result of the operation is of type BigDecimal;
• otherwise, if there is an operand of type BigInteger, the result of the operation is of type BigInteger, unless the operator is / (division), in which case the numeric result type is not further defined;
• otherwise, if there is an operand of type Long or long, the result of the operation is of type Long, unless the operator is / (division), in which case the numeric result type is not further defined;
• otherwise, if there is an operand of integral type, the result of the operation is of type Integer, unless the operator is / (division), in which case the numeric result type is not further defined.

Since:

2.3

Version:

2.5

Author:

Pascal Filion

Constructor Summary

Constructors

Constructor and Description
NumericResolver(Resolver parent, java.util.Collection<Resolver> typeResolvers) Creates a new NumericResolver.
NumericResolver(Resolver parent, Resolver resolver) Creates a new NumericResolver.

Method Summary

Methods inherited from class org.eclipse.persistence.jpa.jpql.tools.resolver.Resolver

addChild, getChild, getManagedType, getMapping, getParent, getParentManagedType, getParentMapping, getParentType, getParentTypeDeclaration, getProvider, getQuery, getType, getType, getType, getTypeDeclaration, getTypeHelper, getTypeRepository, isNullAllowed, setNullAllowed

Methods inherited from class java.lang.Object

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

Constructor Detail

NumericResolver

public NumericResolver(Resolver parent,
                       java.util.Collection<Resolver> typeResolvers)

Creates a new NumericResolver.

Parameters:

parent - The parent Resolver, which is never null

typeResolvers - The resolvers used to calculate the numeric type

NumericResolver

public NumericResolver(Resolver parent,
                       Resolver resolver)

Creates a new NumericResolver.

Parameters:

parent - The parent Resolver, which is never null

resolver - The Resolver used to calculate the numeric type