Package io.substrait.extension

Class SimpleExtension.ExtensionCollection

java.lang.Object

io.substrait.extension.SimpleExtension.ExtensionCollection

Direct Known Subclasses:

ImmutableSimpleExtension.ExtensionCollection

Enclosing class:

SimpleExtension

@Immutable
public abstract static class SimpleExtension.ExtensionCollection
extends Object

The catalog of function and type definitions loaded from YAML extension files. Maps URN + name pairs to full definitions (argument types, return types, etc.).

Used by AbstractExtensionLookup.getScalarFunction(int, io.substrait.extension.SimpleExtension.ExtensionCollection) and similar methods to resolve a SimpleExtension.FunctionAnchor into a complete SimpleExtension.Function with signature metadata.

Constructor Summary

Constructors

Constructor	Description
ExtensionCollection()

Method Summary

Modifier and Type	Method	Description
abstract List<SimpleExtension.AggregateFunctionVariant>	aggregateFunctions()
static ImmutableSimpleExtension.ExtensionCollection.Builder	builder()
Map<String,Map<String,Object>>	extensionMetadata()
SimpleExtension.AggregateFunctionVariant	getAggregateFunction(SimpleExtension.FunctionAnchor anchor)
Optional<Map<String,Object>>	getExtensionMetadata(String urn)	Gets the top-level metadata for a specific extension by URN.
SimpleExtension.ScalarFunctionVariant	getScalarFunction(SimpleExtension.FunctionAnchor anchor)
SimpleExtension.Type	getType(SimpleExtension.TypeAnchor anchor)
SimpleExtension.WindowFunctionVariant	getWindowFunction(SimpleExtension.FunctionAnchor anchor)
SimpleExtension.ExtensionCollection	merge(SimpleExtension.ExtensionCollection extensionCollection)
abstract List<SimpleExtension.ScalarFunctionVariant>	scalarFunctions()
abstract List<SimpleExtension.Type>	types()
abstract List<SimpleExtension.WindowFunctionVariant>	windowFunctions()

Methods inherited from class java.lang.Object

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

Constructor Details

ExtensionCollection

public ExtensionCollection()

Method Details

extensionMetadata

@Default
public Map<String,Map<String,Object>> extensionMetadata()

types

public abstract List<SimpleExtension.Type> types()

scalarFunctions

public abstract List<SimpleExtension.ScalarFunctionVariant> scalarFunctions()

aggregateFunctions

public abstract List<SimpleExtension.AggregateFunctionVariant> aggregateFunctions()

windowFunctions

public abstract List<SimpleExtension.WindowFunctionVariant> windowFunctions()

builder

public static ImmutableSimpleExtension.ExtensionCollection.Builder builder()

getExtensionMetadata

public Optional<Map<String,Object>> getExtensionMetadata(String urn)

Gets the top-level metadata for a specific extension by URN.

Parameters:

urn - The URN of the extension

Returns:

The metadata map if present, empty Optional otherwise

getType

public SimpleExtension.Type getType(SimpleExtension.TypeAnchor anchor)

getScalarFunction

public SimpleExtension.ScalarFunctionVariant getScalarFunction(SimpleExtension.FunctionAnchor anchor)

getAggregateFunction

public SimpleExtension.AggregateFunctionVariant getAggregateFunction(SimpleExtension.FunctionAnchor anchor)

getWindowFunction

public SimpleExtension.WindowFunctionVariant getWindowFunction(SimpleExtension.FunctionAnchor anchor)

merge

public SimpleExtension.ExtensionCollection merge(SimpleExtension.ExtensionCollection extensionCollection)