io.cloudslang.engine.partitions.services

Interface PartitionService

public interface PartitionService

Date: 4/22/12

Author:

This service is responsible for handling tables partiotions. Partition tables are rolled to the next partition when passing a certian treshold

Method Summary

Methods

Modifier and Type	Method and Description
void	createPartitionGroup(String groupName, int groupSize, long timeThreshold, long sizeThreshold) creates a partition group and store it to the DB
PartitionGroup	readPartitionGroup(String groupName) Returns a group of the given name.
boolean	rollPartitions(String groupName) Rolls a partition
void	updatePartitionGroup(String groupName, int groupSize, long timeThreshold, long sizeThreshold) updates a partition group and store it to the DB

Method Detail

createPartitionGroup

void createPartitionGroup(String groupName,
                        int groupSize,
                        long timeThreshold,
                        long sizeThreshold)

creates a partition group and store it to the DB

Parameters:

groupName - the desired name of the group

groupSize - the size of partitions

timeThreshold - a time threshold to roll to the next partition

sizeThreshold - a size threshold to roll to the next partition

updatePartitionGroup

void updatePartitionGroup(String groupName,
                        int groupSize,
                        long timeThreshold,
                        long sizeThreshold)

updates a partition group and store it to the DB

Parameters:

groupName - the desired name of the group

groupSize - the size of partitions

timeThreshold - a time threshold to roll to the next partition

sizeThreshold - a size threshold to roll to the next partition

readPartitionGroup

PartitionGroup readPartitionGroup(String groupName)

Returns a group of the given name.

Parameters:

groupName - the group name to read

Returns:

a PartitionGroup of the given name

rollPartitions

boolean rollPartitions(String groupName)

Rolls a partition

Parameters:

groupName - the group name to roll

Returns:

true if roll was successful