ConcatenateFunction (Geotools modules 31-SNAPSHOT API)

Object
- ExpressionAbstract
- - FunctionImpl
  - - ConcatenateFunction

All Implemented Interfaces:

Expression, Function
```
public class ConcatenateFunction
extends FunctionImpl
```
The function concatenates strings.
It is used to create concatenated strings as arguments of functions.
Implementation of Concatenate as defined by SE1.1.

Author:

Jody Garnett (Refractions Research, Inc.)

Field Summary

Fields
Modifier and Type Field Description

static FunctionName NAME
Make the instance of FunctionName available in a consistent spot.
- Fields inherited from class FunctionImpl
  functionName
- Fields inherited from interface Expression
  NIL

Constructor Summary

Constructors
Constructor Description

ConcatenateFunction()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Object`	`evaluate(Object feature)`	Default implementation simply returns the fallbackValue.
`int`	`getArgCount()`
`String`	`getName()`	Gets the name of this function.

Methods inherited from class FunctionImpl
accept, dispatchArguments, equals, functionName, getFallbackValue, getFunctionName, getParameters, getParameterValue, getParameterValue, hashCode, setFallbackValue, setName, setParameters, toString

Methods inherited from class ExpressionAbstract
evaluate

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

Methods inherited from interface Expression
evaluate

- Field Detail
  - NAME
```
public static final FunctionName NAME
```
    Make the instance of FunctionName available in a consistent spot.
- Constructor Detail
  - ConcatenateFunction
```
public ConcatenateFunction()
```
- Method Detail
  - getName
```
public String getName()
```
    Description copied from class: FunctionImpl
    
    Gets the name of this function.
    
    Specified by:
    
    getName in interface Function
    
    Overrides:
    
    getName in class FunctionImpl
    
    Returns:
    
    the name of the function.
  - getArgCount
```
public int getArgCount()
```
  - evaluate
```
public Object evaluate(Object feature)
```
    Description copied from class: FunctionImpl
    
    Default implementation simply returns the fallbackValue.
    Please override this method to produce a value based on the provided arguments.
    
    Specified by:
    
    evaluate in interface Expression
    
    Overrides:
    
    evaluate in class FunctionImpl
    
    Parameters:
    
    feature - Object being evaluated; often a Feature
    
    Returns:
    
    value for the provided object