com.netflix.astyanax.shallows
Class EmptyColumnList<C>

java.lang.Object
  com.netflix.astyanax.model.AbstractColumnList<C>
      com.netflix.astyanax.shallows.EmptyColumnList<C>

All Implemented Interfaces:

ColumnList<C>, java.lang.Iterable<Column<C>>

public class EmptyColumnList<C>
extends AbstractColumnList<C>

Constructor Summary

EmptyColumnList()

Method Summary

Column<C>	getColumnByIndex(int idx) Queries column by index
Column<C>	getColumnByName(C columnName) Queries column by name
java.util.Collection<C>	getColumnNames() Return the column names
<C2> Column<C2>	getSuperColumn(C columnName, Serializer<C2> colSer) Return the super column with the specified name
<C2> Column<C2>	getSuperColumn(int idx, Serializer<C2> colSer) Get super column by index
boolean	isEmpty() Indicates if the list of columns is empty
boolean	isSuperColumn() Returns true if the columns are super columns with subcolumns.
java.util.Iterator<Column<C>>	iterator()
int	size() returns the number of columns in the row

Methods inherited from class com.netflix.astyanax.model.AbstractColumnList

getBooleanValue, getByteArrayValue, getByteBufferValue, getCompressedStringValue, getDateValue, getDoubleValue, getIntegerValue, getLongValue, getStringValue, getUUIDValue, getValue

Methods inherited from class java.lang.Object

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

Constructor Detail

EmptyColumnList

public EmptyColumnList()

Method Detail

iterator

public java.util.Iterator<Column<C>> iterator()

getColumnByName

public Column<C> getColumnByName(C columnName)

Description copied from interface: ColumnList

Queries column by name

Returns:

an instance of a column or null if not found

getColumnByIndex

public Column<C> getColumnByIndex(int idx)

Description copied from interface: ColumnList

Queries column by index

Returns:

getSuperColumn

public <C2> Column<C2> getSuperColumn(C columnName,
                                      Serializer<C2> colSer)

Description copied from interface: ColumnList

Return the super column with the specified name

Returns:

getSuperColumn

public <C2> Column<C2> getSuperColumn(int idx,
                                      Serializer<C2> colSer)

Description copied from interface: ColumnList

Get super column by index

Returns:

isEmpty

public boolean isEmpty()

Description copied from interface: ColumnList

Indicates if the list of columns is empty

Returns:

size

public int size()

Description copied from interface: ColumnList

returns the number of columns in the row

Returns:

isSuperColumn

public boolean isSuperColumn()

Description copied from interface: ColumnList

Returns true if the columns are super columns with subcolumns. If true then use getSuperColumn to call children. Otherwise call getColumnByIndex and getColumnByName to get the standard columns in the list.

Returns:

getColumnNames

public java.util.Collection<C> getColumnNames()

Description copied from interface: ColumnList

Return the column names