Package oracle.jdbc.pool

Class OracleShardingKeyBuilderImpl

java.lang.Object

oracle.jdbc.pool.OracleShardingKeyBuilderImpl

All Implemented Interfaces:

ShardingKeyBuilder, OracleShardingKeyBuilder

public class OracleShardingKeyBuilderImpl
extends Object
implements OracleShardingKeyBuilder

Field Summary

Fields

Modifier and Type	Field	Description
static long	DEFAULT_ORA_HASH

Constructor Summary

Constructors

Constructor	Description
OracleShardingKeyBuilderImpl()

Method Summary

Modifier and Type	Method	Description
OracleShardingKeyImpl	build()	Builds the sharding key with the sub keys provided and their default metadata.
OracleShardingKeyBuilderImpl	oraHash(long oraHash)	Used to build the shard key with the known ORA HASH value.
OracleShardingKeyBuilderImpl	subkey(Object subkey, SQLType subkeyType)	This method is called to include a subkey into a sharding key object being built.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_ORA_HASH

public static final long DEFAULT_ORA_HASH

See Also:

Constant Field Values

Constructor Detail

OracleShardingKeyBuilderImpl

public OracleShardingKeyBuilderImpl()

Method Detail

subkey

public OracleShardingKeyBuilderImpl subkey(Object subkey,
                                           SQLType subkeyType)

This method is called to include a subkey into a sharding key object being built. The order in which subkey method is called is important as it indicates the order of placement of the subkey within the sharding key.

Specified by:

subkey in interface OracleShardingKeyBuilder

Specified by:

subkey in interface ShardingKeyBuilder

Parameters:

subkey - contains the object that needs to be part of sharding sub key

subkeyType - sub-key data type which can be specified using one of the types from java.sql.JDBCType or oracle.jdbc.OracleType

Returns:

this builder object

See Also:

OracleShardingKeyBuilder.subkey(java.lang.Object, java.sql.SQLType)

oraHash

public OracleShardingKeyBuilderImpl oraHash(long oraHash)

Used to build the shard key with the known ORA HASH value. This is used to optimize sharding key comparisons for hash based sharding.

Parameters:

oraHash - the known ORA HASH value for the shard key that is being built.

Returns:

this builder object

build

public OracleShardingKeyImpl build()

Builds the sharding key with the sub keys provided and their default metadata. The sharding key object built is immutable. The build() method can be called only once on a builder object, subsequent attempts to call build() will result in IllegalStateException.

Specified by:

build in interface OracleShardingKeyBuilder

Specified by:

build in interface ShardingKeyBuilder

Returns:

returns the new sharding key object that is built

See Also:

OracleShardingKeyBuilder.build()