Package org.apache.calcite.linq4j.tree

Class Evaluator

java.lang.Object

org.apache.calcite.linq4j.tree.Evaluator

class Evaluator
extends Object

Holds context for evaluating expressions.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) List<ParameterExpression>	parameters
(package private) List<Object>	values

Constructor Summary

Constructors

Constructor	Description
Evaluator()

Method Summary

Modifier and Type	Method	Description
(package private) void	clear()
(package private) Object	evaluate(Node expression)
(package private) Object	peek(ParameterExpression param)
(package private) void	pop(int n)
(package private) void	push(ParameterExpression parameter, Object value)

Methods inherited from class java.lang.Object

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

Field Detail

parameters

final List<ParameterExpression> parameters

values

final List<Object> values

Constructor Detail

Evaluator

Evaluator()

Method Detail

push

void push(ParameterExpression parameter,
          Object value)

pop

void pop(int n)

peek

Object peek(ParameterExpression param)

evaluate

Object evaluate(Node expression)

clear

void clear()