DurableActivityTrigger Interface

Package:

com.microsoft.durabletask.azurefunctions

Maven Artifact:

com.microsoft:durabletask-azure-functions:1.0.1

Implements

java.lang.annotation.Annotation

public interface DurableActivityTrigger
implements java.lang.annotation.Annotation

Azure Functions attribute for binding a function parameter to a Durable Task activity input.

The following is an example of an activity trigger function that accepts a String input and returns a String output.

@FunctionName("SayHello")
 public String sayHello(
         @DurableActivityTrigger(name = "name") String name,
         final ExecutionContext context) {
     context.getLogger().info("Saying hello to: " + name);
     return String.format("Hello %s!", name);
 }

Method Summary

Modifier and Type	Method and Description
abstract java.lang.String	activity() The name of the activity function.
abstract java.lang.String	dataType() Defines how Functions runtime should treat the parameter value.
abstract java.lang.String	name() The variable name used in function.json.

Method Details

activity

public abstract String activity()

The name of the activity function.

If not specified, the function name is used as the name of the activity.

This property supports binding parameters.

Returns:

The name of the orchestrator function.

dataType

public abstract String dataType()

Defines how Functions runtime should treat the parameter value. Possible values are:

• "": get the value as a string, and try to deserialize to actual parameter type like POJO
• string: always get the value as a string
• binary: get the value as a binary data, and try to deserialize to actual parameter type byte[]

Returns:

The dataType which will be used by the Functions runtime.

name

public abstract String name()

The variable name used in function.json.

Returns:

The variable name used in function.json.