oracle.spatial.network.lod

Class PartitionBlobTranslator11gR2

java.lang.Object

oracle.spatial.network.lod.PartitionBlobTranslator11gR2

All Implemented Interfaces:

PartitionBlobTranslator

public class PartitionBlobTranslator11gR2
extends java.lang.Object
implements PartitionBlobTranslator

The class translates a network partition BLOB to a LogicalPartition object, or vice versa.

Structure of a BLOB:

A partition BLOB consists of 4 sections:

• version info: "TRANSLATOR"+translator name
• header: summary info about the partition
• nodes (internal and external): number of nodes and list of nodes
  Each node consists of the following fields: node id, node cost, is_active, node partition id, max_link_level, userdata
• links: number of links and list of links
  Each link consists of the following fields: link id, link level, start node id, end node id, link cost, is_bidirected, is_active, userdata

Since:

11gR2

Constructor Summary

Constructors

Constructor and Description
PartitionBlobTranslator11gR2()

Method Summary

Modifier and Type	Method and Description
LogicalPartition	blobToPartition(java.lang.String networkName, int partitionId, int partitionLevel, java.io.InputStream is, boolean loadUserData) Reads a partition BLOB from the specified input stream and translates it into a LogicalPartition object.
static PartitionBlobTranslator	getPartitionBlobTranslator()
boolean	partitionToBlob(LogicalPartition partition, java.io.OutputStream os, boolean includeUserData) Translates the LogicalPartition object into a partition BLOB, and outputs it into the specified output stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

PartitionBlobTranslator11gR2

public PartitionBlobTranslator11gR2()

Method Detail

getPartitionBlobTranslator

public static PartitionBlobTranslator getPartitionBlobTranslator()

blobToPartition

public LogicalPartition blobToPartition(java.lang.String networkName,
                                        int partitionId,
                                        int partitionLevel,
                                        java.io.InputStream is,
                                        boolean loadUserData)
                                 throws LODNetworkException

Description copied from interface: PartitionBlobTranslator

Reads a partition BLOB from the specified input stream and translates it into a LogicalPartition object.

Specified by:

blobToPartition in interface PartitionBlobTranslator

Parameters:

networkName - network name

partitionId - partition ID

partitionLevel - link level for the partition

is - input stream

loadUserData - whether to include the user data into the returned LogicalPartition object

Returns:

logical partition

Throws:

LODNetworkException

partitionToBlob

public boolean partitionToBlob(LogicalPartition partition,
                               java.io.OutputStream os,
                               boolean includeUserData)
                        throws LODNetworkException

Description copied from interface: PartitionBlobTranslator

Translates the LogicalPartition object into a partition BLOB, and outputs it into the specified output stream.

Specified by:

partitionToBlob in interface PartitionBlobTranslator

Parameters:

partition - logical partition

os - output stream

includeUserData - whether to include user data in the generated partition BLOB

Returns:

whether user data is included in the generated partition BLOB. User data is includes in the partition BLOB if the input logical partition contains users data and the input includeUserData flag is set to true.

Throws:

LODNetworkException