org.apache.cassandra.cql3.functions

Class ToJsonFct

java.lang.Object

org.apache.cassandra.cql3.functions.AbstractFunction

org.apache.cassandra.cql3.functions.NativeFunction

org.apache.cassandra.cql3.functions.NativeScalarFunction

org.apache.cassandra.cql3.functions.ToJsonFct

All Implemented Interfaces:

AssignmentTestable, Function, ScalarFunction

public class ToJsonFct
extends NativeScalarFunction

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.cassandra.cql3.AssignmentTestable

AssignmentTestable.TestResult

Field Summary

Fields

Modifier and Type	Field and Description
static FunctionName	NAME

Fields inherited from class org.apache.cassandra.cql3.functions.AbstractFunction

argTypes, name, returnType

Method Summary

Modifier and Type	Method and Description
java.nio.ByteBuffer	execute(ProtocolVersion protocolVersion, java.util.List<java.nio.ByteBuffer> parameters) Applies this function to the specified parameter.
static ToJsonFct	getInstance(java.util.List<AbstractType<?>> argTypes)

Methods inherited from class org.apache.cassandra.cql3.functions.NativeScalarFunction

isAggregate, isCalledOnNullInput

Methods inherited from class org.apache.cassandra.cql3.functions.NativeFunction

isNative

Methods inherited from class org.apache.cassandra.cql3.functions.AbstractFunction

addFunctionsTo, argTypes, argumentsList, columnName, elementKeyspace, elementName, equals, hashCode, name, referencesUserType, returnType, testAssignment, toCqlString, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.cassandra.cql3.functions.Function

addFunctionsTo, argTypes, columnName, compare, isNative, name, referencesUserType, returnType

Methods inherited from interface org.apache.cassandra.cql3.AssignmentTestable

testAssignment

Field Detail

NAME

public static final FunctionName NAME

Method Detail

getInstance

public static ToJsonFct getInstance(java.util.List<AbstractType<?>> argTypes)
                             throws InvalidRequestException

Throws:

InvalidRequestException

execute

public java.nio.ByteBuffer execute(ProtocolVersion protocolVersion,
                                   java.util.List<java.nio.ByteBuffer> parameters)
                            throws InvalidRequestException

Description copied from interface: ScalarFunction

Applies this function to the specified parameter.

Parameters:

protocolVersion - protocol version used for parameters and return value

parameters - the input parameters

Returns:

the result of applying this function to the parameter

Throws:

InvalidRequestException - if this function cannot not be applied to the parameter