Package org.openl.rules.types

Class OpenMethodDispatcher

java.lang.Object

org.openl.rules.types.OpenMethodDispatcher

All Implemented Interfaces:

INamedThing, IMethodCaller, Invokable, IOpenMember, IOpenMethod, IOpenMethodHeader

Direct Known Subclasses:

MatchingOpenMethodDispatcher

public abstract class OpenMethodDispatcher
extends Object
implements IOpenMethod

Class that decorates the IOpenMehtod interface for method overload support.

Author:

Alexey Gamanovich

Field Summary

Fields inherited from interface org.openl.base.INamedThing

EMPTY, LONG, REGULAR, SHORT

Fields inherited from interface org.openl.types.IOpenMethod

EMPTY_ARRAY

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	OpenMethodDispatcher()
	OpenMethodDispatcher(IOpenMethod delegate, XlsModuleOpenClass xlsModuleOpenClass)

Method Summary

Modifier and Type	Method	Description
void	addMethod(IOpenMethod method)	Try to add method as overloaded version of decorated method.
protected abstract IOpenMethod	findMatchingMethod(List<IOpenMethod> candidates, IRuntimeContext context)	Resolve best matching method to invoke.
IOpenMethod	findMatchingMethod(IRuntimeEnv env)	Finds appropriate method using runtime context.
List<IOpenMethod>	getCandidates()
XlsModuleOpenClass	getDeclaringClass()	Gets the declaring class.
abstract TableSyntaxNode	getDispatcherTable()
String	getDisplayName(int mode)	Gets the user-friendly name.
IMemberMetaInfo	getInfo()	Gets null.
IOpenMethod	getMethod()	Gets this.
String	getName()	Gets the method name.
IMethodSignature	getSignature()	Gets the signature of method.
IOpenMethod	getTargetMethod()
IOpenClass	getType()	Gets the type of method.
Object	invoke(Object target, Object[] params, IRuntimeEnv env)	Invokes appropriate method using runtime context.
boolean	isConstructor()
boolean	isStatic()

Methods inherited from class java.lang.Object

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

Constructor Detail

OpenMethodDispatcher

protected OpenMethodDispatcher()

OpenMethodDispatcher

public OpenMethodDispatcher(IOpenMethod delegate,
                            XlsModuleOpenClass xlsModuleOpenClass)

Method Detail

getSignature

public IMethodSignature getSignature()

Gets the signature of method.

Specified by:

getSignature in interface IOpenMethodHeader

getDeclaringClass

public XlsModuleOpenClass getDeclaringClass()

Gets the declaring class.

Specified by:

getDeclaringClass in interface IOpenMember

getInfo

public IMemberMetaInfo getInfo()

Gets null. The decorator hasn't info about overloaded methods.

Specified by:

getInfo in interface IOpenMember

getType

public IOpenClass getType()

Gets the type of method.

Specified by:

getType in interface IOpenMember

isStatic

public boolean isStatic()

Specified by:

isStatic in interface IOpenMember

isConstructor

public boolean isConstructor()

Specified by:

isConstructor in interface IOpenMethod

getDisplayName

public String getDisplayName(int mode)

Gets the user-friendly name.

Specified by:

getDisplayName in interface INamedThing

getName

public String getName()

Gets the method name.

Specified by:

getName in interface INamedThing

getMethod

public IOpenMethod getMethod()

Gets this. The decorator cannot resolve which overloaded method should be returned.

Specified by:

getMethod in interface IMethodCaller

getCandidates

public List<IOpenMethod> getCandidates()

invoke

public Object invoke(Object target,
                     Object[] params,
                     IRuntimeEnv env)

Invokes appropriate method using runtime context.

Specified by:

invoke in interface Invokable

findMatchingMethod

public IOpenMethod findMatchingMethod(IRuntimeEnv env)

Finds appropriate method using runtime context. This method used to optimize runtime where the same method is used more that one time.

addMethod

public void addMethod(IOpenMethod method)

Try to add method as overloaded version of decorated method.

Parameters:

method - method to add

findMatchingMethod

protected abstract IOpenMethod findMatchingMethod(List<IOpenMethod> candidates,
                                                  IRuntimeContext context)

Resolve best matching method to invoke.

Parameters:

candidates - list of candidates

context - runtime context

Returns:

method to invoke

getTargetMethod

public IOpenMethod getTargetMethod()

getDispatcherTable

public abstract TableSyntaxNode getDispatcherTable()