org.apache.cassandra.cql3

Class ColumnIdentifier

java.lang.Object

org.apache.cassandra.cql3.ColumnIdentifier

All Implemented Interfaces:

IMeasurableMemory, Selectable

public class ColumnIdentifier
extends java.lang.Object
implements Selectable, IMeasurableMemory

Represents an identifer for a CQL column definition. TODO : should support light-weight mode without text representation for when not interned

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ColumnIdentifier.Raw Because Thrift-created tables may have a non-text comparator, we cannot determine the proper 'key' until we know the comparator.

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

Selectable.WithFieldSelection, Selectable.WithFunction, Selectable.WritetimeOrTTL

Field Summary

Fields

Modifier and Type	Field and Description
java.nio.ByteBuffer	bytes

Constructor Summary

Constructors

Constructor and Description
ColumnIdentifier(java.nio.ByteBuffer bytes, AbstractType<?> type)
ColumnIdentifier(java.nio.ByteBuffer bytes, java.lang.String text)
ColumnIdentifier(java.lang.String rawText, boolean keepCase)

Method Summary

Modifier and Type	Method and Description
ColumnIdentifier	clone(AbstractAllocator allocator)
boolean	equals(java.lang.Object o)
int	hashCode()
java.lang.String	toString()
long	unsharedHeapSize()
long	unsharedHeapSizeExcludingData()

Methods inherited from class java.lang.Object

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

Field Detail

bytes

public final java.nio.ByteBuffer bytes

Constructor Detail

ColumnIdentifier

public ColumnIdentifier(java.lang.String rawText,
                        boolean keepCase)

ColumnIdentifier

public ColumnIdentifier(java.nio.ByteBuffer bytes,
                        AbstractType<?> type)

ColumnIdentifier

public ColumnIdentifier(java.nio.ByteBuffer bytes,
                        java.lang.String text)

Method Detail

hashCode

public final int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public final boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

unsharedHeapSize

public long unsharedHeapSize()

Specified by:

unsharedHeapSize in interface IMeasurableMemory

Returns:

the amount of on-heap memory retained by the object that might be reclaimed if the object were reclaimed, i.e. it should try to exclude globally cached data where possible, or counting portions of arrays that are referenced by the object but used by other objects only (e.g. slabbed byte-buffers), etc.

unsharedHeapSizeExcludingData

public long unsharedHeapSizeExcludingData()

clone

public ColumnIdentifier clone(AbstractAllocator allocator)