Package org.apache.gravitino.function

Class FunctionImpl

java.lang.Object

org.apache.gravitino.function.FunctionImpl

Direct Known Subclasses:

JavaImpl, PythonImpl, SQLImpl

@Evolving
public abstract class FunctionImpl
extends Object

Base class of function implementations.

A function implementation must declare its language and optional external resources. Concrete implementations are provided by SQLImpl, JavaImpl, and PythonImpl.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	FunctionImpl.Language	Supported implementation languages.
static enum	FunctionImpl.RuntimeType	Supported execution runtimes for function implementations.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	FunctionImpl(FunctionImpl.Language language, FunctionImpl.RuntimeType runtime, FunctionResources resources, Map<String,String> properties)	Construct a FunctionImpl.

Method Summary

Modifier and Type	Method	Description
FunctionImpl.Language	language()
Map<String,String>	properties()
FunctionResources	resources()
FunctionImpl.RuntimeType	runtime()

Methods inherited from class java.lang.Object

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

Constructor Details

FunctionImpl

protected FunctionImpl(FunctionImpl.Language language,
 FunctionImpl.RuntimeType runtime,
 FunctionResources resources,
 Map<String,String> properties)

Construct a FunctionImpl.

Parameters:

language - The language of the function implementation.

runtime - The runtime of the function implementation.

resources - The resources required by the function implementation.

properties - The properties of the function implementation.

Method Details

language

public FunctionImpl.Language language()

Returns:

The implementation language.

runtime

public FunctionImpl.RuntimeType runtime()

Returns:

The target runtime.

resources

public FunctionResources resources()

Returns:

The external resources required by this implementation.

properties

public Map<String,String> properties()

Returns:

The additional properties of this implementation.