org.apache.calcite.linq4j.tree

Class ConstantExpression

java.lang.Object

org.apache.calcite.linq4j.tree.AbstractNode

org.apache.calcite.linq4j.tree.Expression

org.apache.calcite.linq4j.tree.ConstantExpression

All Implemented Interfaces:

Node

Direct Known Subclasses:

ConstantUntypedNull

public class ConstantExpression
extends Expression

Represents an expression that has a constant value.

Field Summary

Fields

Modifier and Type	Field and Description
Object	value

Fields inherited from class org.apache.calcite.linq4j.tree.AbstractNode

nodeType, type

Constructor Summary

Constructors

Constructor and Description
ConstantExpression(Type type, Object value)

Method Summary

Methods

Modifier and Type	Method and Description
Expression	accept(Visitor visitor)
boolean	equals(Object o)
Object	evaluate(org.apache.calcite.linq4j.tree.Evaluator evaluator)
int	hashCode()

Methods inherited from class org.apache.calcite.linq4j.tree.Expression

canReduce

Methods inherited from class org.apache.calcite.linq4j.tree.AbstractNode

accept, getNodeType, getType, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

value

public final Object value

Constructor Detail

ConstantExpression

public ConstantExpression(Type type,
                  Object value)

Method Detail

evaluate

public Object evaluate(org.apache.calcite.linq4j.tree.Evaluator evaluator)

Overrides:

evaluate in class AbstractNode

accept

public Expression accept(Visitor visitor)

Specified by:

accept in interface Node

Specified by:

accept in class Expression

equals

public boolean equals(Object o)

Overrides:

equals in class AbstractNode

hashCode

public int hashCode()

Overrides:

hashCode in class AbstractNode