me.prettyprint.cassandra.model.MutatorImpl<K>
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java.lang.Object
public final class MutatorImpl<K>
A Mutator inserts or deletes values from the cluster. There are two main ways to use a mutator: 1. Use the insert/delete methods to immediately insert of delete values. or 2. Use the addInsertion/addDeletion methods to schedule batch operations and then execute() all of them in batch. The class is not thread-safe.
| Field Summary | |
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protected Serializer<K> |
keySerializer
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| Constructor Summary | |
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MutatorImpl(Keyspace keyspace)
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MutatorImpl(Keyspace keyspace,
BatchSizeHint sizeHint)
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MutatorImpl(Keyspace keyspace,
Serializer<K> keySerializer)
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MutatorImpl(Keyspace keyspace,
Serializer<K> keySerializer,
BatchSizeHint sizeHint)
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| Method Summary | ||
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addCounter(K key,
String cf,
HCounterColumn<N> c)
Schedule an increment of a CounterColumn to be inserted in batch mode by Mutator.execute() |
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addCounter(K key,
String cf,
HCounterSuperColumn<SN,N> sc)
Schedule an increment of a SuperColumn to be inserted in batch mode by Mutator.execute() |
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addCounterDeletion(K key,
String cf)
Alternate form for easy deletion of the whole row. |
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addCounterDeletion(K key,
String cf,
N counterColumnName,
Serializer<N> nameSerializer)
Adds a Deletion to the underlying batch_mutate call. |
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addCounterSubDeletion(K key,
String cf,
HCounterSuperColumn<SN,N> sc)
Schedule a counter deletion. |
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addDeletion(Iterable<K> keys,
String cf)
Convenience methods to delete a list of rows. |
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addDeletion(Iterable<K> keys,
String cf,
long clock)
Convenience methods to delete a list of rows. |
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addDeletion(K key,
String cf)
Alternate form for easy deletion of the whole row. |
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addDeletion(K key,
String cf,
long clock)
Same as above accept we add the clock |
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addDeletion(K key,
String cf,
N columnName,
Serializer<N> nameSerializer)
Adds a Deletion to the underlying batch_mutate call. |
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addDeletion(K key,
String cf,
N columnName,
Serializer<N> nameSerializer,
long clock)
Adds a Deletion to the underlying batch_mutate call. |
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addInsertion(K key,
String cf,
HColumn<N,V> c)
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addInsertion(K key,
String cf,
HSuperColumn<SN,N,V> sc)
Schedule an insertion of a supercolumn to be inserted in batch mode by execute() |
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addSubDelete(K key,
String cf,
HSuperColumn<SN,N,V> sc)
Deletes the columns defined in the HSuperColumn. |
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addSubDelete(K key,
String cf,
HSuperColumn<SN,N,V> sc,
long clock)
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addSubDelete(K key,
String cf,
SN sColumnName,
N columnName,
Serializer<SN> sNameSerializer,
Serializer<N> nameSerializer)
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addSubDelete(K key,
String cf,
SN sColumnName,
N columnName,
Serializer<SN> sNameSerializer,
Serializer<N> nameSerializer,
long clock)
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addSuperDelete(K key,
String cf,
SN sColumnName,
Serializer<SN> sNameSerializer)
batches a super column for deletion |
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decrementCounter(K key,
String cf,
N columnName,
long increment)
Convenient method to decrement a simple counter |
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delete(K key,
String cf,
N columnName,
Serializer<N> nameSerializer)
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delete(K key,
String cf,
N columnName,
Serializer<N> nameSerializer,
long clock)
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deleteCounter(K key,
String cf,
N counterColumnName,
Serializer<N> nameSerializer)
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Mutator<K> |
discardPendingMutations()
Discards all pending mutations. |
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MutationResult |
execute()
Batch executes all mutations scheduled to this Mutator instance by addInsertion, addDeletion etc. |
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int |
getPendingMutationCount()
Get the size of the pending mutations map |
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incrementCounter(K key,
String cf,
N columnName,
long increment)
Convenient method to increment a simple counter |
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insert(K key,
String cf,
HColumn<N,V> c)
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insert(K key,
String cf,
HSuperColumn<SN,N,V> superColumn)
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insertCounter(K key,
String cf,
HCounterColumn<N> c)
Simple and immediate insertion (increment/decrement) of a counter |
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insertCounter(K key,
String cf,
HCounterSuperColumn<SN,N> superColumn)
Simple and immediate insertion (increment/decrement) of a counter part of a super column |
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subDelete(K key,
String cf,
SN supercolumnName,
N columnName,
Serializer<SN> sNameSerializer,
Serializer<N> nameSerializer)
Deletes a subcolumn of a supercolumn |
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subDeleteCounter(K key,
String cf,
SN supercolumnName,
N columnName,
Serializer<SN> sNameSerializer,
Serializer<N> nameSerializer)
Deletes a subcolumn of a supercolumn for a counter |
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superDelete(K key,
String cf,
SN supercolumnName,
Serializer<SN> sNameSerializer)
Deletes a supercolumn immediately |
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String |
toString()
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| Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Field Detail |
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protected final Serializer<K> keySerializer
| Constructor Detail |
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public MutatorImpl(Keyspace keyspace,
Serializer<K> keySerializer,
BatchSizeHint sizeHint)
public MutatorImpl(Keyspace keyspace,
Serializer<K> keySerializer)
public MutatorImpl(Keyspace keyspace)
public MutatorImpl(Keyspace keyspace,
BatchSizeHint sizeHint)
| Method Detail |
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public <N,V> MutationResult insert(K key,
String cf,
HColumn<N,V> c)
insert in interface Mutator<K>
public <SN,N,V> MutationResult insert(K key,
String cf,
HSuperColumn<SN,N,V> superColumn)
insert in interface Mutator<K>
public <N> MutationResult delete(K key,
String cf,
N columnName,
Serializer<N> nameSerializer)
delete in interface Mutator<K>
public <N> MutationResult delete(K key,
String cf,
N columnName,
Serializer<N> nameSerializer,
long clock)
delete in interface Mutator<K>
public <SN,N> MutationResult subDelete(K key,
String cf,
SN supercolumnName,
N columnName,
Serializer<SN> sNameSerializer,
Serializer<N> nameSerializer)
subDelete in interface Mutator<K>SN - super column typeN - subcolumn type
public <SN> MutationResult superDelete(K key,
String cf,
SN supercolumnName,
Serializer<SN> sNameSerializer)
Mutator
superDelete in interface Mutator<K>SN - super column type
public <SN,N,V> Mutator<K> addSubDelete(K key,
String cf,
HSuperColumn<SN,N,V> sc)
addSubDelete in interface Mutator<K>
public <SN,N,V> Mutator<K> addSubDelete(K key,
String cf,
HSuperColumn<SN,N,V> sc,
long clock)
addSubDelete in interface Mutator<K>
public <N,V> Mutator<K> addInsertion(K key,
String cf,
HColumn<N,V> c)
addInsertion in interface Mutator<K>
public <SN,N,V> Mutator<K> addInsertion(K key,
String cf,
HSuperColumn<SN,N,V> sc)
execute()
addInsertion in interface Mutator<K>
public <N> Mutator<K> addDeletion(K key,
String cf,
N columnName,
Serializer<N> nameSerializer)
addDeletion in interface Mutator<K>N - column name typekey - row keycf - column familycolumnName - column name. Use null to delete the whole row.nameSerializer - a name serializer
public <N> Mutator<K> addDeletion(K key,
String cf)
addDeletion in interface Mutator<K>
public <N> Mutator<K> addDeletion(K key,
String cf,
long clock)
addDeletion in interface Mutator<K>
public <N> Mutator<K> addDeletion(Iterable<K> keys,
String cf)
Mutator
addDeletion in interface Mutator<K>keys - list of keys to deletecf - Column Family name
public <N> Mutator<K> addDeletion(Iterable<K> keys,
String cf,
long clock)
Mutator
addDeletion in interface Mutator<K>keys - list of keys to deletecf - Column Family nameclock - user defined clock
public <N> Mutator<K> addDeletion(K key,
String cf,
N columnName,
Serializer<N> nameSerializer,
long clock)
addDeletion in interface Mutator<K>N - column name typekey - row keycf - column familycolumnName - column name. Use null to delete the whole row.nameSerializer - a name serializerclock - custom clock to use in the deletion
public MutationResult execute()
execute in interface Mutator<K>public Mutator<K> discardPendingMutations()
discardPendingMutations in interface Mutator<K>public String toString()
toString in class Objectpublic int getPendingMutationCount()
Mutator
getPendingMutationCount in interface Mutator<K>
public <N> MutationResult insertCounter(K key,
String cf,
HCounterColumn<N> c)
Mutator
insertCounter in interface Mutator<K>
public <N> MutationResult incrementCounter(K key,
String cf,
N columnName,
long increment)
Mutator
incrementCounter in interface Mutator<K>
public <N> MutationResult decrementCounter(K key,
String cf,
N columnName,
long increment)
Mutator
decrementCounter in interface Mutator<K>
public <SN,N> MutationResult insertCounter(K key,
String cf,
HCounterSuperColumn<SN,N> superColumn)
Mutator
insertCounter in interface Mutator<K>
public <N> MutationResult deleteCounter(K key,
String cf,
N counterColumnName,
Serializer<N> nameSerializer)
deleteCounter in interface Mutator<K>
public <SN,N> MutationResult subDeleteCounter(K key,
String cf,
SN supercolumnName,
N columnName,
Serializer<SN> sNameSerializer,
Serializer<N> nameSerializer)
Mutator
subDeleteCounter in interface Mutator<K>SN - super column typeN - subcolumn type
public <N> Mutator<K> addCounter(K key,
String cf,
HCounterColumn<N> c)
MutatorMutator.execute()
addCounter in interface Mutator<K>
public <SN,N> Mutator<K> addCounter(K key,
String cf,
HCounterSuperColumn<SN,N> sc)
MutatorMutator.execute()
addCounter in interface Mutator<K>
public <N> Mutator<K> addCounterDeletion(K key,
String cf,
N counterColumnName,
Serializer<N> nameSerializer)
Mutator
addCounterDeletion in interface Mutator<K>N - column name typekey - row keycf - column familycounterColumnName - column name. Use null to delete the whole row.nameSerializer - a name serializer
public <N> Mutator<K> addCounterDeletion(K key,
String cf)
Mutator
addCounterDeletion in interface Mutator<K>
public <SN,N> Mutator<K> addCounterSubDeletion(K key,
String cf,
HCounterSuperColumn<SN,N> sc)
Mutator
addCounterSubDeletion in interface Mutator<K>
public <SN,N> Mutator<K> addSubDelete(K key,
String cf,
SN sColumnName,
N columnName,
Serializer<SN> sNameSerializer,
Serializer<N> nameSerializer)
addSubDelete in interface Mutator<K>
public <SN,N> Mutator<K> addSubDelete(K key,
String cf,
SN sColumnName,
N columnName,
Serializer<SN> sNameSerializer,
Serializer<N> nameSerializer,
long clock)
addSubDelete in interface Mutator<K>
public <SN> Mutator<K> addSuperDelete(K key,
String cf,
SN sColumnName,
Serializer<SN> sNameSerializer)
Mutator
addSuperDelete in interface Mutator<K>
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