VariableFunctions.DeleteVariableFunction

java.lang.Object
- com.inductiveautomation.ignition.common.expressions.functions.BaseFunction
- - com.inductiveautomation.ignition.common.expressions.functions.AbstractFunction
  - - com.inductiveautomation.ignition.common.expressions.legacy.VariableFunctions.DeleteVariableFunction

All Implemented Interfaces:

Function

Enclosing class:

VariableFunctions
```
public static class VariableFunctions.DeleteVariableFunction
extends AbstractFunction
```
deleteVariable(name) deletes a named variable. Returns a boolean indicating whether the variable name had a value.

Field Summary

Fields
Modifier and Type Field Description

static java.lang.String FUNCTION_NAME

Constructor Summary

Constructors
Constructor Description

DeleteVariableFunction()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`QualifiedValue`	`execute(Expression[] args)`	Execute this function, and return the function's qualified value.
`java.lang.String`	`getArgDocString()`	Returns a string to be used in the auto-generated function documentation.
`protected java.lang.String`	`getFunctionDisplayName()`
`java.lang.Class<?>`	`getType()`	Returns the type that this function will return upon execution

Methods inherited from class com.inductiveautomation.ignition.common.expressions.functions.AbstractFunction
executeArg, initArgs, log, validateNumArgs

Methods inherited from class com.inductiveautomation.ignition.common.expressions.functions.BaseFunction
connect, copy, disconnect, executeAll, shutdown, startup

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

- Field Detail
  - FUNCTION_NAME
```
public static final java.lang.String FUNCTION_NAME
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - DeleteVariableFunction
```
public DeleteVariableFunction()
```
- Method Detail
  - getFunctionDisplayName
```
protected java.lang.String getFunctionDisplayName()
```
    Specified by:
    
    getFunctionDisplayName in class AbstractFunction
  - execute
```
public QualifiedValue execute(Expression[] args)
                       throws ExpressionException
```
    Description copied from interface: Function
    
    Execute this function, and return the function's qualified value.
    
    Throws:
    
    ExpressionException
  - getArgDocString
```
public java.lang.String getArgDocString()
```
    Description copied from interface: Function
    
    Returns a string to be used in the auto-generated function documentation. The string should represent the arguments for the function, such as "string, count" for the "repeat" function.
  - getType
```
public java.lang.Class<?> getType()
```
    Description copied from interface: Function
    
    Returns the type that this function will return upon execution