org.colomoto.mddlib.logicalfunction

Class OperatorCollection

java.lang.Object

org.colomoto.mddlib.logicalfunction.OperatorCollection

public class OperatorCollection
extends Object

Define a collection of operators to be used by a BooleanParser. It will collect OperatorFactory objects and help the parser dealing with them.

Author:

Aurelien Naldi

Field Summary

Fields

Modifier and Type	Field and Description
static OperatorCollection	DEFAULT_OPERATORS a collection of classical operators: and, or, not

Constructor Summary

Constructors

Constructor and Description
OperatorCollection()

Method Summary

Modifier and Type	Method and Description
void	addFactory(OperatorFactory factory)
FunctionNode	createOperator(String value, Stack<FunctionNode> stack) Create a node corresponding to the parsed logical function.
List<String>	getOperators()
int	getPriority(String value) get the priority level of a given operator.
String	getRegex()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_OPERATORS

public static final OperatorCollection DEFAULT_OPERATORS

a collection of classical operators: and, or, not

Constructor Detail

OperatorCollection

public OperatorCollection()

Method Detail

createOperator

public FunctionNode createOperator(String value,
                                   Stack<FunctionNode> stack)

Create a node corresponding to the parsed logical function.

The operator symbol is provided, the node will extract its children from the parsing stack.

Parameters:

value -

stack -

Returns:

an operator object for this function

getPriority

public int getPriority(String value)

get the priority level of a given operator.

Parameters:

value -

Returns:

the priority level of the corresponding operator

getOperators

public List<String> getOperators()

getRegex

public String getRegex()

addFactory

public void addFactory(OperatorFactory factory)