io.permazen.parse.expr

Class MethodInvokeNode

java.lang.Object

io.permazen.parse.expr.MethodInvokeNode

All Implemented Interfaces:

Node

public class MethodInvokeNode
extends Object

Node that invokes a Java method when evaluated.

Constructor Summary

Constructors

Constructor and Description
MethodInvokeNode(Class<?> klass, String name, List<Node> paramNodes) Constructor for static method invocation.
MethodInvokeNode(Node targetNode, String name, List<Node> paramNodes) Constructor for instance method invocation.

Method Summary

Modifier and Type	Method and Description
Value	evaluate(ParseSession session) Evaluate this node.
protected io.permazen.parse.expr.AbstractInvokeNode.ParamInfo	evaluateParams(ParseSession session) Evaluate parameters and parameter types.
protected void	fixupTypeInferringNodes(ParseSession session, io.permazen.parse.expr.AbstractInvokeNode.ParamInfo paramInfo, T executable)
protected void	fixupVarArgs(io.permazen.parse.expr.AbstractInvokeNode.ParamInfo paramInfo, T executable)
Class<?>	getType(ParseSession session) Get the type of this node's value.

Methods inherited from class java.lang.Object

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

Constructor Detail

MethodInvokeNode

public MethodInvokeNode(Class<?> klass,
                        String name,
                        List<Node> paramNodes)

Constructor for static method invocation.

Parameters:

klass - class containing static method

name - static method name

paramNodes - method parameters

MethodInvokeNode

public MethodInvokeNode(Node targetNode,
                        String name,
                        List<Node> paramNodes)

Constructor for instance method invocation.

Parameters:

targetNode - node evaluating to target object

name - instance method name

paramNodes - method parameters

Method Detail

evaluate

public Value evaluate(ParseSession session)

Description copied from interface: Node

Evaluate this node. There will be a transaction open.

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.

Parameters:

session - parse session

Returns:

the expected type of the node

evaluateParams

protected io.permazen.parse.expr.AbstractInvokeNode.ParamInfo evaluateParams(ParseSession session)

Evaluate parameters and parameter types.

TypeInferringNodes are not evaluated, instead they are left as null and the corresponding parameter type is set to the special value MethodUtil.FunctionalType. Null parameters have their parameter type set to MethodUtil.NullType.

Parameters:

session - parse session

Returns:

evaluated parameter info

fixupVarArgs

protected void fixupVarArgs(io.permazen.parse.expr.AbstractInvokeNode.ParamInfo paramInfo,
                            T executable)

fixupTypeInferringNodes

protected void fixupTypeInferringNodes(ParseSession session,
                                       io.permazen.parse.expr.AbstractInvokeNode.ParamInfo paramInfo,
                                       T executable)