NativeFunction (apache-cassandra API)

java.lang.Object
- org.apache.cassandra.cql3.functions.AbstractFunction
- - org.apache.cassandra.cql3.functions.NativeFunction

All Implemented Interfaces:

AssignmentTestable, Function

Direct Known Subclasses:

NativeAggregateFunction, NativeScalarFunction
```
public abstract class NativeFunction
extends AbstractFunction
```
Base class for our native/hardcoded functions.

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.cassandra.cql3.AssignmentTestable
  AssignmentTestable.TestResult

Field Summary
- Fields inherited from class org.apache.cassandra.cql3.functions.AbstractFunction
  argTypes, name, returnType
- Fields inherited from interface org.apache.cassandra.cql3.functions.Function
  UNRESOLVED

Constructor Summary

Constructors
Modifier Constructor Description

protected NativeFunction(java.lang.String name, AbstractType<?> returnType, AbstractType<?>... argTypes)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`isNative()`	Checks whether the function is a native/hard coded one or not.
`boolean`	`isPure()`	Checks whether the function is a pure function (as in doesn't depend on, nor produces side effects) or not.

Methods inherited from class org.apache.cassandra.cql3.functions.AbstractFunction
addFunctionsTo, argTypes, argumentsList, columnName, elementKeyspace, elementName, equals, hashCode, name, referencesUserType, returnType, testAssignment, toCqlString, toString

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.cassandra.cql3.functions.Function
compare, isAggregate

- Constructor Detail
  - NativeFunction
```
protected NativeFunction(java.lang.String name,
                         AbstractType<?> returnType,
                         AbstractType<?>... argTypes)
```
- Method Detail
  - isNative
```
public boolean isNative()
```
    Description copied from interface: Function
    
    Checks whether the function is a native/hard coded one or not.
    
    Returns:
    
    true if the function is a native/hard coded one, false otherwise.
  - isPure
```
public boolean isPure()
```
    Description copied from interface: Function
    
    Checks whether the function is a pure function (as in doesn't depend on, nor produces side effects) or not.
    
    Returns:
    
    true if the function is a pure function, false otherwise.