Package org.dspace.content.logic.operator

Class Nand

java.lang.Object

org.dspace.content.logic.operator.AbstractOperator

org.dspace.content.logic.operator.Nand

All Implemented Interfaces:

LogicalStatement

public class Nand
extends AbstractOperator

An operator that implements NAND by negating an AND operation

Author:

Kim Shepherd

Constructor Summary

Constructors

Constructor	Description
Nand()	Default constructor
Nand(List<LogicalStatement> statements)	Constructor that accepts predefined list of statements as defined in item-filters.xml

Method Summary

Modifier and Type	Method	Description
boolean	getResult(Context context, Item item)	Return true if the result of AND'ing all sub-statements is false (ie. a NOT(AND()) Return false if not

Methods inherited from class org.dspace.content.logic.operator.AbstractOperator

getStatements, setStatements

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Nand

public Nand()

Default constructor

Nand

public Nand(List<LogicalStatement> statements)

Constructor that accepts predefined list of statements as defined in item-filters.xml

Parameters:

statements - List of logical statements

Method Details

getResult

public boolean getResult(Context context,
 Item item)
                  throws LogicalStatementException

Return true if the result of AND'ing all sub-statements is false (ie. a NOT(AND()) Return false if not

Specified by:

getResult in interface LogicalStatement

Overrides:

getResult in class AbstractOperator

Parameters:

context - DSpace context

item - Item to evaluate

Returns:

boolean result of NAND

Throws:

LogicalStatementException