CatalogFunction (Flink : 2.0-preview1 API)

All Known Implementing Classes:

CatalogFunctionImpl, FunctionCatalog.InlineCatalogFunction
```
@PublicEvolving
public interface CatalogFunction
```
Interface for a function in a catalog.

Method Summary

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method	Description
`CatalogFunction`	`copy()`	Create a deep copy of the function.
`String`	`getClassName()`	Get the full name of the class backing the function.
`Optional<String>`	`getDescription()`	Get a brief description of the function.
`Optional<String>`	`getDetailedDescription()`	Get a detailed description of the function.
`FunctionLanguage`	`getFunctionLanguage()`	Get the language used for the definition of function.
`List<ResourceUri>`	`getFunctionResources()`	Get a detailed resource description of the function.
`boolean`	`isGeneric()`	Deprecated. There is no replacement for this function, as now functions have type inference strategies

- Method Detail
  - getClassName
```
String getClassName()
```
    Get the full name of the class backing the function.
    
    Returns:
    
    the full name of the class
  - copy
```
CatalogFunction copy()
```
    Create a deep copy of the function.
    
    Returns:
    
    a deep copy of "this" instance
  - getDescription
```
Optional<String> getDescription()
```
    Get a brief description of the function.
    
    Returns:
    
    an optional short description of the function
  - getDetailedDescription
```
Optional<String> getDetailedDescription()
```
    Get a detailed description of the function.
    
    Returns:
    
    an optional long description of the function
  - isGeneric
```
@Deprecated
boolean isGeneric()
```
    Deprecated.
    There is no replacement for this function, as now functions have type inference strategies
    
    Distinguish if the function is a generic function.
    
    Returns:
    
    whether the function is a generic function
  - getFunctionLanguage
```
FunctionLanguage getFunctionLanguage()
```
    Get the language used for the definition of function.
    
    Returns:
    
    the language type of the function definition
  - getFunctionResources
```
List<ResourceUri> getFunctionResources()
```
    Get a detailed resource description of the function.
    
    Returns:
    
    an ResourceUri list of the function