me.prettyprint.cassandra.service.template

Class SuperCfTemplate<K,SN,N>

java.lang.Object

me.prettyprint.cassandra.service.template.AbstractColumnFamilyTemplate<K,SN>

me.prettyprint.cassandra.service.template.SuperCfTemplate<K,SN,N>

Direct Known Subclasses:

ThriftSuperCfTemplate

public abstract class SuperCfTemplate<K,SN,N>
extends AbstractColumnFamilyTemplate<K,SN>

Field Summary

Fields

Modifier and Type	Field and Description
protected Serializer<N>	subSerializer

Fields inherited from class me.prettyprint.cassandra.service.template.AbstractColumnFamilyTemplate

activeSlicePredicate, ALL_COLUMNS_COUNT, ALL_COLUMNS_END, ALL_COLUMNS_START, batched, clock, columnFactory, columnFamily, columnParent, columnValueSerializers, consistencyLevelPolicy, exceptionsTranslator, keySerializer, keyspace, topSerializer

Constructor Summary

Constructors

Constructor and Description
SuperCfTemplate(Keyspace keyspace, String columnFamily, Serializer<K> keySerializer, Serializer<SN> topSerializer, Serializer<N> subSerializer)

Method Summary

Methods

Modifier and Type	Method and Description
int	countColumns(K key)
int	countColumns(K key, SN start, SN end, int max) Counts columns in the specified range of a super column family
int	countSubColumns(K key, SN superColumnName)
int	countSubColumns(K key, SN superColumnName, N start, N end, int max) Counts child columns in the specified range of a children in a specified super column
SuperCfUpdater<K,SN,N>	createUpdater(K key)
SuperCfUpdater<K,SN,N>	createUpdater(K key, SN sColumnName)
void	deleteColumn(K key, SN sColumnName) Immediately delete the key and superColumn combination
void	deleteRow(K key) Immediately delete the row
protected abstract SuperCfResult<K,SN,N>	doExecuteMultigetSlice(List<K> keys, HSlicePredicate<SN> predicate)
protected abstract SuperCfResult<K,SN,N>	doExecuteSlice(K key, SN sColumnName, HSlicePredicate<SN> predicate)
Serializer<N>	getSubSerializer()
boolean	isColumnsExist(K key) Checks if there are any columns at a row specified by key in a super column family
boolean	isSubColumnsExist(K key, SN superColumnName) Checks if there are any columns at a row specified by key in a specific super column
<V> HColumn<N,V>	querySingleSubColumn(K key, SN columnName, N subColumnName, Serializer<V> valueSerializer)
SuperCfResult<K,SN,N>	querySuperColumn(K key, SN sColumnName)
SuperCfResult<K,SN,N>	querySuperColumns(K key)
SuperCfResult<K,SN,N>	querySuperColumns(K key, HSlicePredicate<SN> predicate) Query super columns using the provided predicate instead of the internal one
SuperCfResult<K,SN,N>	querySuperColumns(K key, List<SN> sColumnNames)
<T> T	querySuperColumns(K key, List<SN> sColumnNames, SuperCfRowMapper<K,SN,N,T> mapper)
SuperCfResult<K,SN,N>	querySuperColumns(List<K> keys)
SuperCfResult<K,SN,N>	querySuperColumns(List<K> keys, List<SN> sColumnNames)
void	update(SuperCfUpdater<K,SN,N> updater) Calls SuperCfUpdater.updateInternal() and AbstractTemplateUpdater.update() in that order before invoking AbstractColumnFamilyTemplate.executeIfNotBatched(Mutator) on the underlying upater's Mutator

Methods inherited from class me.prettyprint.cassandra.service.template.AbstractColumnFamilyTemplate

addColumn, createMutator, deleteColumn, deleteRow, executeBatch, executeIfNotBatched, executeIfNotBatched, getClock, getColumnFamily, getEffectiveClock, getKeySerializer, getTopSerializer, getValueSerializer, isBatched, setBatched, setClock, setColumnFactory, setCount, setExceptionsTranslator

Methods inherited from class java.lang.Object

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

Field Detail

subSerializer

protected Serializer<N> subSerializer

Constructor Detail

SuperCfTemplate

public SuperCfTemplate(Keyspace keyspace,
               String columnFamily,
               Serializer<K> keySerializer,
               Serializer<SN> topSerializer,
               Serializer<N> subSerializer)

Method Detail

getSubSerializer

public Serializer<N> getSubSerializer()

isColumnsExist

public boolean isColumnsExist(K key)

Checks if there are any columns at a row specified by key in a super column family

Parameters:

key -

Returns:

true if columns exist

isSubColumnsExist

public boolean isSubColumnsExist(K key,
                        SN superColumnName)

Checks if there are any columns at a row specified by key in a specific super column

Parameters:

key -

superColumnName - the column name serializer of the child columns

Returns:

true if columns exist

countColumns

public int countColumns(K key)

Parameters:

key -

Returns:

the number of columns in a super column family at the specified row key

countSubColumns

public int countSubColumns(K key,
                  SN superColumnName)

Parameters:

key -

superColumnName -

Returns:

the number of child columns in a specified super column

countColumns

public int countColumns(K key,
               SN start,
               SN end,
               int max)

Counts columns in the specified range of a super column family

Parameters:

key -

start -

end -

max -

Returns:

countSubColumns

public int countSubColumns(K key,
                  SN superColumnName,
                  N start,
                  N end,
                  int max)

Counts child columns in the specified range of a children in a specified super column

Parameters:

key -

superColumnName -

start -

end -

max -

Returns:

querySingleSubColumn

public <V> HColumn<N,V> querySingleSubColumn(K key,
                                    SN columnName,
                                    N subColumnName,
                                    Serializer<V> valueSerializer)

querySuperColumns

public SuperCfResult<K,SN,N> querySuperColumns(K key,
                                      HSlicePredicate<SN> predicate)

Query super columns using the provided predicate instead of the internal one

Parameters:

key -

predicate -

Returns:

querySuperColumns

public SuperCfResult<K,SN,N> querySuperColumns(K key,
                                      List<SN> sColumnNames)

querySuperColumns

public SuperCfResult<K,SN,N> querySuperColumns(List<K> keys,
                                      List<SN> sColumnNames)

querySuperColumns

public SuperCfResult<K,SN,N> querySuperColumns(List<K> keys)

querySuperColumns

public <T> T querySuperColumns(K key,
                      List<SN> sColumnNames,
                      SuperCfRowMapper<K,SN,N,T> mapper)

querySuperColumns

public SuperCfResult<K,SN,N> querySuperColumns(K key)

querySuperColumn

public SuperCfResult<K,SN,N> querySuperColumn(K key,
                                     SN sColumnName)

createUpdater

public SuperCfUpdater<K,SN,N> createUpdater(K key,
                                   SN sColumnName)

createUpdater

public SuperCfUpdater<K,SN,N> createUpdater(K key)

update

public void update(SuperCfUpdater<K,SN,N> updater)

Calls SuperCfUpdater.updateInternal() and AbstractTemplateUpdater.update() in that order before invoking AbstractColumnFamilyTemplate.executeIfNotBatched(Mutator) on the underlying upater's Mutator

Parameters:

updater -

deleteColumn

public void deleteColumn(K key,
                SN sColumnName)

Immediately delete the key and superColumn combination

Overrides:

deleteColumn in class AbstractColumnFamilyTemplate<K,SN>

deleteRow

public void deleteRow(K key)

Immediately delete the row

Overrides:

deleteRow in class AbstractColumnFamilyTemplate<K,SN>

doExecuteSlice

protected abstract SuperCfResult<K,SN,N> doExecuteSlice(K key,
                                   SN sColumnName,
                                   HSlicePredicate<SN> predicate)

doExecuteMultigetSlice

protected abstract SuperCfResult<K,SN,N> doExecuteMultigetSlice(List<K> keys,
                                           HSlicePredicate<SN> predicate)