org.apache.cassandra.db.marshal

Class BytesType

java.lang.Object

org.apache.cassandra.db.marshal.AbstractType<java.nio.ByteBuffer>

org.apache.cassandra.db.marshal.BytesType

All Implemented Interfaces:

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

public class BytesType
extends AbstractType<java.nio.ByteBuffer>

Field Summary

Fields

Modifier and Type	Field and Description
static BytesType	instance

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

columnComparator, columnReverseComparator, indexComparator, indexReverseComparator, onDiskAtomComparator, reverseComparator

Method Summary

Methods

Modifier and Type	Method and Description
CQL3Type	asCQL3Type()
static int	bytesCompare(java.nio.ByteBuffer o1, java.nio.ByteBuffer o2)
int	compare(java.nio.ByteBuffer o1, java.nio.ByteBuffer o2)
java.nio.ByteBuffer	compose(java.nio.ByteBuffer bytes)
java.nio.ByteBuffer	decompose(java.nio.ByteBuffer value)
java.nio.ByteBuffer	fromString(java.lang.String source) get a byte representation of the given string.
java.lang.String	getString(java.nio.ByteBuffer bytes) get a string representation of the bytes suitable for log messages
boolean	isCompatibleWith(AbstractType<?> previous) Returns true if this comparator is compatible with the provided previous comparator, that is if previous can safely be replaced by this.
boolean	isValueCompatibleWith(AbstractType<?> previous) Returns true if values of the previous AbstracType can be read by the this AbsractType.
void	validate(java.nio.ByteBuffer bytes)

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

compareCollectionMembers, fromStringCQL2, getColumnsString, getReverseComparator, getString, isCollection, isCommutative, parseDefaultParameters, toString, validateCollectionMember

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals

Field Detail

instance

public static final BytesType instance

Method Detail

compose

public java.nio.ByteBuffer compose(java.nio.ByteBuffer bytes)

Specified by:

compose in class AbstractType<java.nio.ByteBuffer>

decompose

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

Specified by:

decompose in class AbstractType<java.nio.ByteBuffer>

compare

public int compare(java.nio.ByteBuffer o1,
          java.nio.ByteBuffer o2)

bytesCompare

public static int bytesCompare(java.nio.ByteBuffer o1,
               java.nio.ByteBuffer o2)

getString

public java.lang.String getString(java.nio.ByteBuffer bytes)

Description copied from class: AbstractType

get a string representation of the bytes suitable for log messages

Specified by:

getString in class AbstractType<java.nio.ByteBuffer>

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.nio.ByteBuffer>

validate

public void validate(java.nio.ByteBuffer bytes)
              throws MarshalException

Specified by:

validate in class AbstractType<java.nio.ByteBuffer>

Throws:

MarshalException

isCompatibleWith

public boolean isCompatibleWith(AbstractType<?> previous)

Description copied from class: AbstractType

Returns true if this comparator is compatible with the provided previous comparator, that is if previous can safely be replaced by this. A comparator cn should be compatible with a previous one cp if forall columns c1 and c2, if cn.validate(c1) and cn.validate(c2) and cn.compare(c1, c2) == v, then cp.validate(c1) and cp.validate(c2) and cp.compare(c1, c2) == v. Note that a type should be compatible with at least itself and when in doubt, keep the default behavior of not being compatible with any other comparator!

Overrides:

isCompatibleWith in class AbstractType<java.nio.ByteBuffer>

isValueCompatibleWith

public boolean isValueCompatibleWith(AbstractType<?> previous)

Description copied from class: AbstractType

Returns true if values of the previous AbstracType can be read by the this AbsractType. Note that this is a weaker version of isCompatibleWith, as it does not require that both type compare values the same way. Note that a type should be compatible with at least itself.

Overrides:

isValueCompatibleWith in class AbstractType<java.nio.ByteBuffer>

asCQL3Type

public CQL3Type asCQL3Type()

Overrides:

asCQL3Type in class AbstractType<java.nio.ByteBuffer>