Package org.apache.qpid.server.query.engine.parsing.factory

Class AccessorExpressionFactory

java.lang.Object

org.apache.qpid.server.query.engine.parsing.factory.AccessorExpressionFactory

public final class AccessorExpressionFactory
extends Object

Factory creating accessor expressions

Method Summary

Modifier and Type	Method	Description
static <T,R> ExpressionNode<T,R>	chained(String alias, ExpressionNode<T,R> first, List<ExpressionNode<R,?>> args)	Creates chained accessor
static <T,R> ExpressionNode<T,R>	collection(String alias, String property, Expression<T,R> index)	Creates collection accessor
static <T,R> ExpressionNode<T,R>	delegating(String alias, String property)	Creates delegating accessor

Methods inherited from class java.lang.Object

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

Method Detail

delegating

public static <T,R> ExpressionNode<T,R> delegating(String alias,
                                                               String property)

Creates delegating accessor

Type Parameters:

T - Input parameter type

R - Return parameter type

Parameters:

alias - Expression alias

property - Entity property name

Returns:

DelegatingObjectAccessor instance

chained

public static <T,R> ExpressionNode<T,R> chained(String alias,
                                                            ExpressionNode<T,R> first,
                                                            List<ExpressionNode<R,?>> args)

Creates chained accessor

Type Parameters:

T - Input parameter type

R - Return parameter type

Parameters:

alias - Expression alias

first - First expression in the chain

args - Subsequent expression in the chain

Returns:

Chained accessor instance

collection

public static <T,R> ExpressionNode<T,R> collection(String alias,
                                                               String property,
                                                               Expression<T,R> index)

Creates collection accessor

Type Parameters:

T - Input parameter type

R - Return parameter type

Parameters:

alias - Expression alias

property - Entity property name

index - Collection index

Returns:

Collection accessor