Package org.apache.cassandra.cql3.functions

Class OperationFcts

java.lang.Object

org.apache.cassandra.cql3.functions.OperationFcts

public final class OperationFcts
extends java.lang.Object

Operation functions (Mathematics).

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	NEGATION_FUNCTION_NAME	The name of the function used to perform negations

Method Summary

Modifier and Type	Method	Description
static void	addFunctionsTo(NativeFunctions functions)
static FunctionName	getFunctionNameFromOperator(char operator)	Returns the name of the function associated to the specified operator.
static char	getOperator(FunctionName function)	Returns the operator associated to the specified function.
static boolean	isNegation(FunctionName function)	Checks if the function with the specified name is a negation.
static boolean	isOperation(FunctionName function)	Checks if the function with the specified name is an operation.

Methods inherited from class java.lang.Object

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

Field Detail

NEGATION_FUNCTION_NAME

public static final java.lang.String NEGATION_FUNCTION_NAME

The name of the function used to perform negations

See Also:

Constant Field Values

Method Detail

addFunctionsTo

public static void addFunctionsTo(NativeFunctions functions)

isOperation

public static boolean isOperation(FunctionName function)

Checks if the function with the specified name is an operation.

Parameters:

function - the function name

Returns:

true if the function is an operation, false otherwise.

isNegation

public static boolean isNegation(FunctionName function)

Checks if the function with the specified name is a negation.

Parameters:

function - the function name

Returns:

true if the function is an negation, false otherwise.

getOperator

public static char getOperator(FunctionName function)

Returns the operator associated to the specified function.

Returns:

the operator associated to the specified function.

getFunctionNameFromOperator

public static FunctionName getFunctionNameFromOperator(char operator)

Returns the name of the function associated to the specified operator.

Parameters:

operator - the operator

Returns:

the name of the function associated to the specified operator