Invocation context from JAR library in Python app

Calling any method on Runtime Context creates new instance of Invocation Context.

from javonet.sdk import Javonet

resources_directory = "."

# use activate only once in your app
Javonet.activate("your-license-key")

# create called runtime context
called_runtime = Javonet.in_memory().jvm()

# construct an invocation context - this invocationContext in non-materialized 
invocation_context = called_runtime.get_type("java.lang.Math").invoke_static_method("abs", -50)

# execute invocation context - this will materialize the invocationContext
response = invocation_context.execute()
# use activate only once in your app
Javonet.activate("your-license-key")

# create called runtime context
called_runtime = Javonet.in_memory().jvm()

# construct an invocation context - this invocationContext in non-materialized 
invocation_context = called_runtime.get_type("java.lang.Math").invoke_static_method("abs", -50)

# execute invocation context - this will materialize the invocationContext
response = invocation_context.execute()

Navigation through the methods on different variations of Invocation Context allows to construct the chain of invocations. Those chains of invocation represent the non-materialized expression of interaction with libraries, types, and any programming entities in target technology.

In order to materialize expression, a call to called technology needs to be invoked with Execute method

Invocation context from JAR library in Python app

Additional references