Supported and Unsupported Methods in Table (HBase 0.98 and higher)
This table indicates which methods MapR-DB supports in the HBase interface
Table.
The following methods are supported with HBase tables, except where noted. For full details about this interface, see Interface Table.
| Method Name | Modifier and Type | Description | Supported? | |
|---|---|---|---|---|
| HBase 0.98 | HBase 1.1 | |||
append(Append append) |
Result | Appends values to one or more columns within a single row. | Yes | Yes |
batch(List<? extends Row> actions) |
Object[] | A batch call on Deletes, Gets, Puts, Increments, Appends and RowMutations. | Yes | Deprecated |
batch(List<? extends Row> actions, Object[] results) |
void | Method that does a batch call on Deletes, Gets, Puts, Increments and Appends. | Yes | Yes |
batchCallback(List<? extends Row> actions,
org.apache.hadoop.hbase.client.coprocessor.Batch.Callback<R> callback) |
Object[] | Method that does a batch call on Deletes, Gets, Puts, Increments and Appends with a callback. | No | Yes |
batchCallback(List<? extends Row> actions, Object[] results,
org.apache.hadoop.hbase.client.coprocessor.Batch.Callback<R> callback) |
<R> void | Same as batch(List, Object[]), but with a callback. MapR-DB ignores the callback. | No | Yes |
batchCoprocessorService(com.google.protobuf.Descriptors.MethodDescriptor
methodDescriptor, com.google.protobuf.Message request, byte[] startKey, byte[] endKey,
R responsePrototype,
org.apache.hadoop.hbase.client.coprocessor.Batch.Callback<R> callback) |
<R extends com.google.protobuf.Message> void | Creates an instance of the given Service subclass for each table region spanning the range from the startKey row to endKey row (inclusive), all the invocations to the same region server will be batched into one call. | No | No |
batchCoprocessorService(com.google.protobuf.Descriptors.MethodDescriptor
methodDescriptor, com.google.protobuf.Message request, byte[] startKey, byte[] endKey,
R responsePrototype) |
<R extends com.google.protobuf.Message> Map<byte[],R> | No | No | |
checkAndDelete(byte[] row, byte[] family, byte[] qualifier, byte[] value, Delete
delete) |
boolean | Atomically checks if a row/family/qualifier value matches the expected value. | Yes | Yes |
checkAndDelete(byte[] row, byte[] family, byte[] qualifier,
CompareFilter.CompareOp compareOp, byte[] value, Delete delete) |
boolean | No | Yes | |
checkAndMutate(byte[] row, byte[] family, byte[] qualifier,
CompareFilter.CompareOp compareOp, byte[] value, RowMutations mutation) |
boolean | Yes | Yes | |
checkAndPut(byte[] row, byte[] family, byte[] qualifier, byte[] value, Put
put) |
boolean | Yes | Yes | |
checkAndPut(byte[] row, byte[] family, byte[] qualifier, CompareFilter.CompareOp
compareOp, byte[] value, Put put) |
boolean | No | Yes | |
close() |
void | Releases any resources held or pending changes in internal buffers. | Yes | Yes |
coprocessorService(byte[] row) |
CoprocessorRpcChannel | Creates and returns a RpcChannel instance connected to the table region containing the specified row. | No | No |
coprocessorService(Class<T> service, byte[] startKey, byte[] endKey,
org.apache.hadoop.hbase.client.coprocessor.Batch.Call<T,R> callable,
org.apache.hadoop.hbase.client.coprocessor.Batch.Callback<R> callback) |
<T extends com.google.protobuf.Service,R> void | Creates an instance of the given Service subclass for each table region spanning the range from the startKey row to endKey row (inclusive), and invokes the passed Batch.Call.call(T) method with each Service instance. | No | No |
coprocessorService(Class<T> service, byte[] startKey, byte[] endKey,
org.apache.hadoop.hbase.client.coprocessor.Batch.Call<T,R> callable) |
<T extends com.google.protobuf.Service,R> Map<byte[],R> | No | No | |
delete(Delete delete) |
void | Deletes the specified cells/row. | Yes | Yes |
delete(List<Delete> deletes) |
void | Deletes the specified cells/rows in bulk. | Yes | Yes |
exists(Get get) |
boolean | Test for the existence of columns in the table, as specified by the Get. | Yes | Yes |
existsAll(List<Get> gets) |
boolean[] | Test for the existence of columns in the table, as specified by the Gets, in batch. | Yes | Yes |
get(Get get) |
Result | Extracts certain cells from a given row. | Yes | Yes |
get(List<Get> gets) |
Result[] | Extracts certain cells from the given rows, in batch. | Yes | Yes |
getConfiguration() |
org.apache.hadoop.conf.Configuration | Returns the Configuration object used by this instance. | Yes | Yes |
getName() |
TableName | Gets the fully qualified table name instance of this table. | Yes | Yes |
getScanner(byte[] family, byte[] qualifier) |
ResultScanner | Gets a scanner on the current table for the given family and qualifier. | Yes | Yes |
getScanner(byte[] family) |
ResultScanner | Gets a scanner on the current table for the given family. | Yes | Yes |
getScanner(Scan scan) |
ResultScanner | Returns a scanner on the current table as specified by the Scan object. | Yes | Yes |
getTableDescriptor() |
HTableDescriptor | Gets the table descriptor for this table. | Yes | Yes |
getWriteBufferSize() |
long | Returns the maximum size in bytes of the write buffer for this HTable. | No | No |
increment(Increment increment) |
Result | Increments one or more columns within a single row. | Yes | Yes |
incrementColumnValue(byte[] row, byte[] family, byte[] qualifier, long amount,
Durability durability) |
long | Atomically increments a column value. | No | Yes |
incrementColumnValue(byte[] row, byte[] family, byte[] qualifier, long
amount) |
long | See incrementColumnValue(byte[], byte[], byte[], long, Durability). | Yes | Yes |
mutateRow(RowMutations rm) |
void | Performs multiple mutations atomically on a single row. | Yes | Yes |
put(List<Put> puts) |
void | Puts some data in the table, in batch. | Yes | Yes |
put(Put put) |
void | Puts some data in the table. | Yes | Yes |
setWriteBufferSize(long writeBufferSize) |
void | Sets the size of the buffer in bytes. | No | No |
1 Not fully supported. When used with MapR-DB, the callback is ignored.
2 Not fully supported. When used with MapR-DB, the durability is ignored.