org.apache.cassandra.db.marshal

Class CounterColumnType

java.lang.Object

org.apache.cassandra.db.marshal.AbstractType<T>

org.apache.cassandra.db.marshal.NumberType<java.lang.Long>

org.apache.cassandra.db.marshal.CounterColumnType

All Implemented Interfaces:

java.util.Comparator<java.nio.ByteBuffer>, AssignmentTestable

public class CounterColumnType
extends NumberType<java.lang.Long>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.cassandra.db.marshal.AbstractType

AbstractType.ComparisonType

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

AssignmentTestable.TestResult

Field Summary

Fields

Modifier and Type	Field and Description
static CounterColumnType	instance

Fields inherited from class org.apache.cassandra.db.marshal.AbstractType

comparatorSet, comparisonType, isByteOrderComparable, reverseComparator

Method Summary

Modifier and Type	Method and Description
java.nio.ByteBuffer	add(NumberType<?> leftType, java.nio.ByteBuffer left, NumberType<?> rightType, java.nio.ByteBuffer right) Adds the left argument to the right one.
CQL3Type	asCQL3Type()
<V> java.lang.Long	compose(V value, ValueAccessor<V> accessor)
java.nio.ByteBuffer	decompose(java.lang.Long value)
java.nio.ByteBuffer	divide(NumberType<?> leftType, java.nio.ByteBuffer left, NumberType<?> rightType, java.nio.ByteBuffer right) Divides the left argument by the right one.
Term	fromJSONObject(java.lang.Object parsed) Given a parsed JSON string, return a byte representation of the object.
java.nio.ByteBuffer	fromString(java.lang.String source) get a byte representation of the given string.
TypeSerializer<java.lang.Long>	getSerializer()
<V> java.lang.String	getString(V value, ValueAccessor<V> accessor) get a string representation of the bytes used for various identifier (NOT just for log messages)
boolean	isCounter()
boolean	isEmptyValueMeaningless() Returns true for types where empty should be handled like null like Int32Type.
java.nio.ByteBuffer	mod(NumberType<?> leftType, java.nio.ByteBuffer left, NumberType<?> rightType, java.nio.ByteBuffer right) Return the remainder.
java.nio.ByteBuffer	multiply(NumberType<?> leftType, java.nio.ByteBuffer left, NumberType<?> rightType, java.nio.ByteBuffer right) Multiplies the left argument with the right one.
java.nio.ByteBuffer	negate(java.nio.ByteBuffer input) Negates the argument.
java.nio.ByteBuffer	substract(NumberType<?> leftType, java.nio.ByteBuffer left, NumberType<?> rightType, java.nio.ByteBuffer right) Substracts the left argument from the right one.
java.lang.String	toJSONString(java.nio.ByteBuffer buffer, ProtocolVersion protocolVersion) Converts the specified value into its JSON representation.
protected long	toLong(java.nio.ByteBuffer value) Converts the specified value into a long if allowed.
<V> void	validateCellValue(V cellValue, ValueAccessor<V> accessor) Validate cell value.

Methods inherited from class org.apache.cassandra.db.marshal.NumberType

isFloatingPoint, toBigDecimal, toBigInteger, toByte, toDouble, toFloat, toInt, toShort

Methods inherited from class org.apache.cassandra.db.marshal.AbstractType

asCQLTypeStringList, checkComparable, compare, compare, compareCollectionMembers, compareCustom, compareForCQL, compose, expandUserTypes, freeze, freezeNestedMulticellTypes, getComponents, getString, getString, isCollection, isCompatibleWith, isFreezable, isFrozenCollection, isMultiCell, isReversed, isTuple, isUDT, isValueCompatibleWith, isValueCompatibleWithInternal, parseDefaultParameters, read, readArray, readBuffer, readBuffer, referencesDuration, referencesUserType, referencesUserType, skipValue, subTypes, testAssignment, testAssignment, toJSONString, toString, toString, validate, validate, validateCollectionMember, valueLengthIfFixed, withUpdatedUserType, writeValue, writeValue, writtenLength, writtenLength

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Detail

instance

public static final CounterColumnType instance

Method Detail

isEmptyValueMeaningless

public boolean isEmptyValueMeaningless()

Description copied from class: AbstractType

Returns true for types where empty should be handled like null like Int32Type.

Overrides:

isEmptyValueMeaningless in class AbstractType<java.lang.Long>

isCounter

public boolean isCounter()

Overrides:

isCounter in class AbstractType<java.lang.Long>

compose

public <V> java.lang.Long compose(V value,
                                  ValueAccessor<V> accessor)

Overrides:

compose in class AbstractType<java.lang.Long>

decompose

public java.nio.ByteBuffer decompose(java.lang.Long value)

Overrides:

decompose in class AbstractType<java.lang.Long>

validateCellValue

public <V> void validateCellValue(V cellValue,
                                  ValueAccessor<V> accessor)
                           throws MarshalException

Description copied from class: AbstractType

Validate cell value. Unlike AbstractType.validate(java.nio.ByteBuffer), cell value is passed to validate its content. Usually, this is the same as validate except collection.

Overrides:

validateCellValue in class AbstractType<java.lang.Long>

Parameters:

cellValue - ByteBuffer representing cell value

Throws:

MarshalException

getString

public <V> java.lang.String getString(V value,
                                      ValueAccessor<V> accessor)

Description copied from class: AbstractType

get a string representation of the bytes used for various identifier (NOT just for log messages)

Overrides:

getString in class AbstractType<java.lang.Long>

fromString

public java.nio.ByteBuffer fromString(java.lang.String source)

Description copied from class: AbstractType

get a byte representation of the given string.

Specified by:

fromString in class AbstractType<java.lang.Long>

fromJSONObject

public Term fromJSONObject(java.lang.Object parsed)

Description copied from class: AbstractType

Given a parsed JSON string, return a byte representation of the object.

Specified by:

fromJSONObject in class AbstractType<java.lang.Long>

Parameters:

parsed - the result of parsing a json string

toJSONString

public java.lang.String toJSONString(java.nio.ByteBuffer buffer,
                                     ProtocolVersion protocolVersion)

Description copied from class: AbstractType

Converts the specified value into its JSON representation.

The buffer position will stay the same.

Overrides:

toJSONString in class AbstractType<java.lang.Long>

Parameters:

buffer - the value to convert

protocolVersion - the protocol version to use for the conversion

Returns:

a JSON string representing the specified value

asCQL3Type

public CQL3Type asCQL3Type()

Overrides:

asCQL3Type in class AbstractType<java.lang.Long>

getSerializer

public TypeSerializer<java.lang.Long> getSerializer()

Specified by:

getSerializer in class AbstractType<java.lang.Long>

toLong

protected long toLong(java.nio.ByteBuffer value)

Description copied from class: NumberType

Converts the specified value into a long if allowed.

Overrides:

toLong in class NumberType<java.lang.Long>

Parameters:

value - the value to convert

Returns:

the converted value

add

public java.nio.ByteBuffer add(NumberType<?> leftType,
                               java.nio.ByteBuffer left,
                               NumberType<?> rightType,
                               java.nio.ByteBuffer right)

Description copied from class: NumberType

Adds the left argument to the right one.

Specified by:

add in class NumberType<java.lang.Long>

Parameters:

leftType - the type associated to the left argument

left - the left argument

rightType - the type associated to the right argument

right - the right argument

Returns:

the addition result

substract

public java.nio.ByteBuffer substract(NumberType<?> leftType,
                                     java.nio.ByteBuffer left,
                                     NumberType<?> rightType,
                                     java.nio.ByteBuffer right)

Description copied from class: NumberType

Substracts the left argument from the right one.

Specified by:

substract in class NumberType<java.lang.Long>

Parameters:

leftType - the type associated to the left argument

left - the left argument

rightType - the type associated to the right argument

right - the right argument

Returns:

the substraction result

multiply

public java.nio.ByteBuffer multiply(NumberType<?> leftType,
                                    java.nio.ByteBuffer left,
                                    NumberType<?> rightType,
                                    java.nio.ByteBuffer right)

Description copied from class: NumberType

Multiplies the left argument with the right one.

Specified by:

multiply in class NumberType<java.lang.Long>

Parameters:

leftType - the type associated to the left argument

left - the left argument

rightType - the type associated to the right argument

right - the right argument

Returns:

the multiplication result

divide

public java.nio.ByteBuffer divide(NumberType<?> leftType,
                                  java.nio.ByteBuffer left,
                                  NumberType<?> rightType,
                                  java.nio.ByteBuffer right)

Description copied from class: NumberType

Divides the left argument by the right one.

Specified by:

divide in class NumberType<java.lang.Long>

Parameters:

leftType - the type associated to the left argument

left - the left argument

rightType - the type associated to the right argument

right - the right argument

Returns:

the division result

mod

public java.nio.ByteBuffer mod(NumberType<?> leftType,
                               java.nio.ByteBuffer left,
                               NumberType<?> rightType,
                               java.nio.ByteBuffer right)

Description copied from class: NumberType

Return the remainder.

Specified by:

mod in class NumberType<java.lang.Long>

Parameters:

leftType - the type associated to the left argument

left - the left argument

rightType - the type associated to the right argument

right - the right argument

Returns:

the remainder

negate

public java.nio.ByteBuffer negate(java.nio.ByteBuffer input)

Description copied from class: NumberType

Negates the argument.

Specified by:

negate in class NumberType<java.lang.Long>

Parameters:

input - the argument to negate

Returns:

the negated argument