Package org.apache.qpid.server.query.engine.validation

Class FunctionParametersValidator

java.lang.Object

org.apache.qpid.server.query.engine.validation.FunctionParametersValidator

public final class FunctionParametersValidator
extends Object

Validates function parameters

Method Summary

Modifier and Type	Method	Description
static <T,R> void	requireMaxParameters(int size, List<ExpressionNode<T,?>> args, AbstractFunctionExpression<T,R> expression)	Validates that argument list doesn't exceed a maximal expected size
static <T,R> void	requireMinParameters(int size, List<ExpressionNode<T,?>> args, AbstractFunctionExpression<T,R> expression)	Validates that argument list exceeds a minimal expected size
static <T,R> void	requireParameters(int size, List<ExpressionNode<T,?>> args, AbstractFunctionExpression<T,R> expression)	Validates argument list size

Methods inherited from class java.lang.Object

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

Method Detail

requireParameters

public static <T,R> void requireParameters(int size,
                                                 List<ExpressionNode<T,?>> args,
                                                 AbstractFunctionExpression<T,R> expression)

Validates argument list size

Type Parameters:

T - Input parameter type

R - Return parameter type

Parameters:

size - Expected size of argument list

args - List of arguments

expression - Parent expression

requireMinParameters

public static <T,R> void requireMinParameters(int size,
                                                    List<ExpressionNode<T,?>> args,
                                                    AbstractFunctionExpression<T,R> expression)

Validates that argument list exceeds a minimal expected size

Type Parameters:

T - Input parameter type

R - Return parameter type

Parameters:

size - Expected minimal size of argument list

args - List of arguments

expression - Parent expression

requireMaxParameters

public static <T,R> void requireMaxParameters(int size,
                                                    List<ExpressionNode<T,?>> args,
                                                    AbstractFunctionExpression<T,R> expression)

Validates that argument list doesn't exceed a maximal expected size

Type Parameters:

T - Input parameter type

R - Return parameter type

Parameters:

size - Expected maximal size of argument list

args - List of arguments

expression - Parent expression