org.apache.flink.table.functions

类 FunctionService

java.lang.Object

org.apache.flink.table.functions.FunctionService

public class FunctionService
extends Object

Service for creating configured instances of UserDefinedFunction using a FunctionDescriptor.

构造器概要

构造器

构造器和说明
FunctionService()

方法概要

限定符和类型	方法和说明
static UserDefinedFunction	createFunction(FunctionDescriptor descriptor) Creates a user-defined function with the given properties and the current thread's context class loader.
static UserDefinedFunction	createFunction(FunctionDescriptor descriptor, ClassLoader classLoader) Creates a user-defined function with the given properties.
static UserDefinedFunction	createFunction(FunctionDescriptor descriptor, ClassLoader classLoader, boolean performValidation) Creates a user-defined function with the given properties.
static UserDefinedFunction	createFunction(FunctionDescriptor descriptor, ClassLoader classLoader, boolean performValidation, org.apache.flink.configuration.ReadableConfig config) Creates a user-defined function with the given properties.

从类继承的方法 java.lang.Object

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

构造器详细资料

FunctionService

public FunctionService()

方法详细资料

createFunction

public static UserDefinedFunction createFunction(FunctionDescriptor descriptor)

Creates a user-defined function with the given properties and the current thread's context class loader.

参数:

descriptor - the descriptor that describes a function

返回:

the generated user-defined function

createFunction

public static UserDefinedFunction createFunction(FunctionDescriptor descriptor,
                                                 ClassLoader classLoader)

Creates a user-defined function with the given properties.

参数:

descriptor - the descriptor that describes a function

classLoader - the class loader to load the function and its parameter's classes

返回:

the generated user-defined function

createFunction

public static UserDefinedFunction createFunction(FunctionDescriptor descriptor,
                                                 ClassLoader classLoader,
                                                 boolean performValidation)

Creates a user-defined function with the given properties.

参数:

descriptor - the descriptor that describes a function

classLoader - the class loader to load the function and its parameter's classes

performValidation - whether or not the descriptor should be validated

返回:

the generated user-defined function

createFunction

public static UserDefinedFunction createFunction(FunctionDescriptor descriptor,
                                                 ClassLoader classLoader,
                                                 boolean performValidation,
                                                 org.apache.flink.configuration.ReadableConfig config)

Creates a user-defined function with the given properties.

参数:

descriptor - the descriptor that describes a function

classLoader - the class loader to load the function and its parameter's classes

performValidation - whether or not the descriptor should be validated

config - the table configuration used to create the function

返回:

the generated user-defined function