LifecycleFunctionClass (flink-cdc-parent 3.8-SNAPSHOT API)

java.lang.Object
- org.apache.flink.cdc.udf.examples.java.LifecycleFunctionClass

All Implemented Interfaces:

UserDefinedFunction
```
public class LifecycleFunctionClass
extends Object
implements UserDefinedFunction
```
This is an example UDF class for testing purposes only.

Constructor Summary

Constructors
Constructor Description

LifecycleFunctionClass()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`	This will be invoked before a UDF got destroyed.
`String`	`eval()`
`void`	`open()`	This will be invoked every time when a UDF got created.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.flink.cdc.common.udf.UserDefinedFunction
getReturnType, getReturnType, open

- Constructor Detail
  - LifecycleFunctionClass
```
public LifecycleFunctionClass()
```
- Method Detail
  - eval
```
public String eval()
```
  - open
```
public void open()
```
    Description copied from interface: UserDefinedFunction
    
    This will be invoked every time when a UDF got created.
    
    Specified by:
    
    open in interface UserDefinedFunction
  - close
```
public void close()
```
    Description copied from interface: UserDefinedFunction
    
    This will be invoked before a UDF got destroyed.
    
    Specified by:
    
    close in interface UserDefinedFunction