org.jsimpledb.parse.expr

Interface Node

All Known Implementing Classes:

BoundMethodReferenceNode, CastNode, ClassNode, ConstNode, ConstructorInvokeNode, EmptyArrayNode, LambdaNode, LambdaNode.Param, LiteralArrayNode, LiteralNode, MethodInvokeNode, MethodReferenceNode, TypeInferringNode, UnboundMethodReferenceNode, VarNode

public interface Node

The product of a parse operation, which is capable of producing a Value when evaluated within a transaction.

Method Summary

Modifier and Type	Method and Description
Value	evaluate(ParseSession session) Evaluate this node.
Class<?>	getType(ParseSession session) Get the type of this node's value.

Method Detail

evaluate

Value evaluate(ParseSession session)

Evaluate this node. There will be a transaction open.

Parameters:

session - parse session

Returns:

result of node evaluation

Throws:

EvalException - if evaluation fails

getType

Class<?> getType(ParseSession session)

Get the type of this node's value.

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

Parameters:

session - parse session

Returns:

the expected type of the node