AzureFunctionInstanceInjector (Spring Cloud Function Parent 3.2.12 API)

java.lang.Object
- org.springframework.cloud.function.adapter.azure.AzureFunctionInstanceInjector

All Implemented Interfaces:

com.microsoft.azure.functions.spi.inject.FunctionInstanceInjector
```
public class AzureFunctionInstanceInjector
extends Object
implements com.microsoft.azure.functions.spi.inject.FunctionInstanceInjector
```
The instance factory used by the Spring framework to initialize Azure function instance. It is waived with the Azure Java Worker through the META-INFO/services/com.microsoft.azure.functions.spi.inject.FunctionInstanceInjector service hook. The Azure Java Worker delegates scans the classpath for service definition and delegates the function class creation to this instance factory.

Since:

3.2.9

Author:

Christian Tzolov

Constructor Summary

Constructors
Constructor Description

AzureFunctionInstanceInjector()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`<T> T`	`getInstance(Class<T> functionClass)`	This method is called by the Azure Java Worker on every function invocation.

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

- Constructor Detail
  - AzureFunctionInstanceInjector
```
public AzureFunctionInstanceInjector()
```
- Method Detail
  - getInstance
```
public <T> T getInstance(Class<T> functionClass)
                  throws Exception
```
    This method is called by the Azure Java Worker on every function invocation. The Worker sends in the classes annotated with @FunctionName annotations and allows the Spring framework to initialize the function instance as a Spring Bean and return the instance. Then the Worker uses the created instance to invoke the function.
    
    Specified by:
    
    getInstance in interface com.microsoft.azure.functions.spi.inject.FunctionInstanceInjector
    
    Type Parameters:
    
    T - customer Azure functions class type
    
    Parameters:
    
    functionClass - the class that contains customer Azure functions (e.g. @FunctionName annotated )
    
    Returns:
    
    the instance that will be invoked on by azure functions java worker
    
    Throws:
    
    Exception - any exception that is thrown by the Spring framework during instance creation