IndexFunction (DataNucleus RDBMS plugin 5.2.11 API)

java.lang.Object
- org.datanucleus.store.rdbms.sql.method.IndexFunction

All Implemented Interfaces:

SQLMethod
```
public class IndexFunction
extends Object
implements SQLMethod
```
Expression handler for JPQL "INDEX" expression to return the index of an element. Returns a NumericExpression. TODO Drop this class and map across to ListIndexOfMethod.

Constructor Summary

Constructors
Constructor Description

IndexFunction()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`SQLExpression`	`getExpression(SQLStatement stmt, SQLExpression ignore, List args)`	Return the expression for this SQL function.

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

- Constructor Detail
  - IndexFunction
```
public IndexFunction()
```
- Method Detail
  - getExpression
```
public SQLExpression getExpression(SQLStatement stmt,
                                   SQLExpression ignore,
                                   List args)
```
    Description copied from interface: SQLMethod
    
    Return the expression for this SQL function.
    
    Specified by:
    
    getExpression in interface SQLMethod
    
    Parameters:
    
    stmt - SQLStatement that this expression is for
    
    ignore - The expression that it is invoked on
    
    args - Arguments passed in
    
    Returns:
    
    The SQL expression using the SQL function