io.siddhi.sample.util

Class CustomFunctionExtension

java.lang.Object

io.siddhi.core.executor.function.FunctionExecutor

io.siddhi.sample.util.CustomFunctionExtension

All Implemented Interfaces:

io.siddhi.core.executor.ExpressionExecutor

public class CustomFunctionExtension
extends io.siddhi.core.executor.function.FunctionExecutor

Field Summary

Fields inherited from class io.siddhi.core.executor.function.FunctionExecutor

attributeExpressionExecutors, functionId, processingMode, siddhiQueryContext

Constructor Summary

Constructors

Constructor and Description
CustomFunctionExtension()

Method Summary

Modifier and Type	Method and Description
protected Object	execute(Object[] data, io.siddhi.core.util.snapshot.state.State state) The main execution method which will be called upon event arrival when there are more then one function parameter
protected Object	execute(Object data, io.siddhi.core.util.snapshot.state.State state) The main execution method which will be called upon event arrival when there are zero or one function parameter
io.siddhi.query.api.definition.Attribute.Type	getReturnType()
protected io.siddhi.core.util.snapshot.state.StateFactory	init(io.siddhi.core.executor.ExpressionExecutor[] attributeExpressionExecutors, io.siddhi.core.util.config.ConfigReader configReader, io.siddhi.core.config.SiddhiQueryContext siddhiQueryContext) The initialization method for FunctionExecutor, this method will be called before the other methods

Methods inherited from class io.siddhi.core.executor.function.FunctionExecutor

execute, execute, execute, initExecutor

Methods inherited from class java.lang.Object

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

Constructor Detail

CustomFunctionExtension

public CustomFunctionExtension()

Method Detail

init

protected io.siddhi.core.util.snapshot.state.StateFactory init(io.siddhi.core.executor.ExpressionExecutor[] attributeExpressionExecutors,
                                                               io.siddhi.core.util.config.ConfigReader configReader,
                                                               io.siddhi.core.config.SiddhiQueryContext siddhiQueryContext)

The initialization method for FunctionExecutor, this method will be called before the other methods

Specified by:

init in class io.siddhi.core.executor.function.FunctionExecutor

Parameters:

attributeExpressionExecutors - are the executors of each function parameters

configReader -

siddhiQueryContext - the context of the siddhi query

execute

protected Object execute(Object[] data,
                         io.siddhi.core.util.snapshot.state.State state)

The main execution method which will be called upon event arrival when there are more then one function parameter

Specified by:

execute in class io.siddhi.core.executor.function.FunctionExecutor

Parameters:

data - the runtime values of function parameters

state -

Returns:

the function result

execute

protected Object execute(Object data,
                         io.siddhi.core.util.snapshot.state.State state)

The main execution method which will be called upon event arrival when there are zero or one function parameter

Specified by:

execute in class io.siddhi.core.executor.function.FunctionExecutor

Parameters:

data - null if the function parameter count is zero or runtime data value of the function parameter

state - Function state

Returns:

the function result

getReturnType

public io.siddhi.query.api.definition.Attribute.Type getReturnType()