org.jsimpledb.parse.expr

Class LiteralNode

java.lang.Object

org.jsimpledb.parse.expr.LiteralNode

All Implemented Interfaces:

Node

public class LiteralNode
extends Object
implements Node

A parsed literal value. Evaluates to a ConstValue.

Constructor Summary

Constructors

Constructor and Description
LiteralNode(Object value) Constructor.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
ConstValue	evaluate(ParseSession session) Evaluate this node.
Object	getLiteralValue() Get the literal value.
Class<?>	getType(ParseSession session) Get the type of this node's value.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

LiteralNode

public LiteralNode(Object value)

Constructor.

Parameters:

value - the literal value

Method Detail

getLiteralValue

public Object getLiteralValue()

Get the literal value.

Returns:

literal value

evaluate

public ConstValue evaluate(ParseSession session)

Description copied from interface: Node

Evaluate this node. There will be a transaction open.

Specified by:

evaluate in interface Node

Parameters:

session - parse session

Returns:

result of node evaluation

getType

public Class<?> getType(ParseSession session)

Description copied from interface: Node

Get the type of this node's value.

If the type is unknown, Object.class should be returned.

Specified by:

getType in interface Node

Parameters:

session - parse session

Returns:

the expected type of the node

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object