Not (DSpace Kernel :: API and Implementation 7.1.1 API)

java.lang.Object
- org.dspace.content.logic.operator.Not

All Implemented Interfaces:

LogicalStatement
```
public class Not
extends Object
implements LogicalStatement
```
An operator that implements NOT by simply negating a statement Note that this operator doesn't actually implement the 'AbstractOperator' interface because we only want one sub-statement. So it's actually just a simple implementation of LogicalStatement. Not can have one sub-statement only, while and, or, nor, ... can have multiple sub-statements.

Version:

$Revision$

Author:

Kim Shepherd

Constructor Summary

Constructors
Constructor Description

Not()
Default constructor

Not(LogicalStatement statement)
Constructor that accepts predefined list of statements as defined in item-filters.xml

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`getResult(Context context, Item item)`	Return true if the result of the sub-statement is false Return false otherwise
`LogicalStatement`	`getStatements()`	Get sub-statement (note: singular! even though we keep the method name) for this operator
`void`	`setStatements(LogicalStatement statement)`	Set sub-statement (note: singular!) for this operator, as defined in item-filters.xml

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

- Constructor Detail
  - Not
```
public Not()
```
    Default constructor
  - Not
```
public Not(LogicalStatement statement)
```
    Constructor that accepts predefined list of statements as defined in item-filters.xml
    
    Parameters:
    
    statement - Single logical statement
- Method Detail
  - getStatements
```
public LogicalStatement getStatements()
```
    Get sub-statement (note: singular! even though we keep the method name) for this operator
    
    Returns:
    
    list of sub-statements
  - setStatements
```
public void setStatements(LogicalStatement statement)
```
    Set sub-statement (note: singular!) for this operator, as defined in item-filters.xml
    
    Parameters:
    
    statement - a single statement to apply to NOT operation
  - getResult
```
public boolean getResult(Context context,
                         Item item)
                  throws LogicalStatementException
```
    Return true if the result of the sub-statement is false Return false otherwise
    
    Specified by:
    
    getResult in interface LogicalStatement
    
    Parameters:
    
    context - DSpace context
    
    item - Item to evaluate
    
    Returns:
    
    boolean result of NOT
    
    Throws:
    
    LogicalStatementException