Function.Aggregate (SQLite JDBC 3.44.0.0 API)

java.lang.Object
- org.sqlite.Function
- - org.sqlite.Function.Aggregate

All Implemented Interfaces:

Cloneable

Direct Known Subclasses:

Function.Window

Enclosing class:

Function
```
public abstract static class Function.Aggregate
extends Function
implements Cloneable
```
Provides an interface for creating SQLite user-defined aggregate functions.

See Also:

Function

Nested Class Summary
- Nested classes/interfaces inherited from class org.sqlite.Function
  Function.Aggregate, Function.Window

Field Summary
- Fields inherited from class org.sqlite.Function
  FLAG_DETERMINISTIC

Constructor Summary

Constructors
Constructor Description

Aggregate()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`Object`	`clone()`
`protected abstract void`	`xFinal()`	Defines the abstract aggregate callback function
`protected void`	`xFunc()`	Called by SQLite as a custom function.
`protected abstract void`	`xStep()`	Defines the abstract aggregate callback function

Methods inherited from class org.sqlite.Function
args, create, create, create, destroy, destroy, error, result, result, result, result, result, result, value_blob, value_double, value_int, value_long, value_text, value_type

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Aggregate
```
public Aggregate()
```
- Method Detail
  - xFunc
```
protected final void xFunc()
```
    Description copied from class: Function
    
    Called by SQLite as a custom function. Should access arguments through value_*(int), return results with result(*) and throw errors with error(String).
    
    Specified by:
    
    xFunc in class Function
    
    See Also:
    
    Function.xFunc()
  - xStep
```
protected abstract void xStep()
                       throws SQLException
```
    Defines the abstract aggregate callback function
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/aggregate_context.html
  - xFinal
```
protected abstract void xFinal()
                        throws SQLException
```
    Defines the abstract aggregate callback function
    
    Throws:
    
    SQLException
    
    See Also:
    
    https://www.sqlite.org/c3ref/aggregate_context.html
  - clone
```
public Object clone()
             throws CloneNotSupportedException
```
    Overrides:
    
    clone in class Object
    
    Throws:
    
    CloneNotSupportedException
    
    See Also:
    
    Object.clone()