org.datanucleus.store.hbase

Class HBaseUtils

java.lang.Object

org.datanucleus.store.hbase.HBaseUtils

public class HBaseUtils
extends Object

Method Summary

Modifier and Type	Method and Description
static String	getDefaultValueForMember(org.datanucleus.metadata.AbstractMemberMetaData mmd) Accessor for the default value specified for the provided member.
static org.apache.hadoop.hbase.client.Delete	getDeleteForObject(org.datanucleus.state.ObjectProvider op, org.datanucleus.store.schema.table.Table schemaTable)
static String	getFamilyNameForColumn(org.datanucleus.store.schema.table.Column col) Accessor for the family name for a column.
static org.apache.hadoop.hbase.client.Get	getGetForObject(org.datanucleus.state.ObjectProvider op, org.datanucleus.store.schema.table.Table schemaTable)
static org.apache.hadoop.hbase.client.Put	getPutForObject(org.datanucleus.state.ObjectProvider op, org.datanucleus.store.schema.table.Table schemaTable)
static String	getQualifierNameForColumn(org.datanucleus.store.schema.table.Column col) Accessor for the qualifier name for a column name.
static org.apache.hadoop.hbase.client.Result	getResultForObject(org.datanucleus.state.ObjectProvider op, org.apache.hadoop.hbase.client.Table table, org.datanucleus.store.schema.table.Table schemaTable)
static Object	getSurrogateVersionForObject(org.datanucleus.metadata.AbstractClassMetaData cmd, org.apache.hadoop.hbase.client.Result result, String tableName, org.datanucleus.store.StoreManager storeMgr) Convenience method that extracts the surrogate version for a class of the specified type from the passed Result.
static Object	getVersionForObject(org.datanucleus.metadata.AbstractClassMetaData cmd, org.apache.hadoop.hbase.client.Result result, org.datanucleus.ExecutionContext ec, org.datanucleus.store.schema.table.Table table, org.datanucleus.store.StoreManager storeMgr) Convenience method that extracts the version for a class of the specified type from the passed Result.
static boolean	objectExistsInTable(org.datanucleus.state.ObjectProvider op, org.apache.hadoop.hbase.client.Table table, org.datanucleus.store.schema.table.Table schemaTable)

Methods inherited from class java.lang.Object

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

Method Detail

getDefaultValueForMember

public static String getDefaultValueForMember(org.datanucleus.metadata.AbstractMemberMetaData mmd)

Accessor for the default value specified for the provided member. If no defaultValue is provided on the column then returns null.

Parameters:

mmd - Metadata for the member

Returns:

The default value

getFamilyNameForColumn

public static String getFamilyNameForColumn(org.datanucleus.store.schema.table.Column col)

Accessor for the family name for a column. If the column name is of the form "family:qualifier" then returns family, otherwise returns the table name.

Parameters:

col - Column

Returns:

The family name for this column

getQualifierNameForColumn

public static String getQualifierNameForColumn(org.datanucleus.store.schema.table.Column col)

Accessor for the qualifier name for a column name. If the column name is of the form "family:qualifier" then returns qualifier, otherwise returns the column name.

Parameters:

col - Column

Returns:

The qualifier name for this column

getVersionForObject

public static Object getVersionForObject(org.datanucleus.metadata.AbstractClassMetaData cmd,
                                         org.apache.hadoop.hbase.client.Result result,
                                         org.datanucleus.ExecutionContext ec,
                                         org.datanucleus.store.schema.table.Table table,
                                         org.datanucleus.store.StoreManager storeMgr)

Convenience method that extracts the version for a class of the specified type from the passed Result.

Parameters:

cmd - Metadata for the class

result - The result

ec - ExecutionContext

table - The table

storeMgr - StoreManager

Returns:

The version

getSurrogateVersionForObject

public static Object getSurrogateVersionForObject(org.datanucleus.metadata.AbstractClassMetaData cmd,
                                                  org.apache.hadoop.hbase.client.Result result,
                                                  String tableName,
                                                  org.datanucleus.store.StoreManager storeMgr)

Convenience method that extracts the surrogate version for a class of the specified type from the passed Result.

Parameters:

cmd - Metadata for the class

result - The result

tableName - Name of the table

storeMgr - Store Manager

Returns:

The surrogate version

getPutForObject

public static org.apache.hadoop.hbase.client.Put getPutForObject(org.datanucleus.state.ObjectProvider op,
                                                                 org.datanucleus.store.schema.table.Table schemaTable)
                                                          throws IOException

Throws:

IOException

getDeleteForObject

public static org.apache.hadoop.hbase.client.Delete getDeleteForObject(org.datanucleus.state.ObjectProvider op,
                                                                       org.datanucleus.store.schema.table.Table schemaTable)
                                                                throws IOException

Throws:

IOException

getGetForObject

public static org.apache.hadoop.hbase.client.Get getGetForObject(org.datanucleus.state.ObjectProvider op,
                                                                 org.datanucleus.store.schema.table.Table schemaTable)
                                                          throws IOException

Throws:

IOException

getResultForObject

public static org.apache.hadoop.hbase.client.Result getResultForObject(org.datanucleus.state.ObjectProvider op,
                                                                       org.apache.hadoop.hbase.client.Table table,
                                                                       org.datanucleus.store.schema.table.Table schemaTable)
                                                                throws IOException

Throws:

IOException

objectExistsInTable

public static boolean objectExistsInTable(org.datanucleus.state.ObjectProvider op,
                                          org.apache.hadoop.hbase.client.Table table,
                                          org.datanucleus.store.schema.table.Table schemaTable)
                                   throws IOException

Throws:

IOException