Package oracle.kv.pubsub
Class NoSQLSubscriberId
java.lang.Object
oracle.kv.pubsub.NoSQLSubscriberId
Object to represent a subscriber id in a subscription group. When user
creates a subscription group with multiple subscribers, each covering a
disjoint subset of shards, user need to specify the NoSQLSubscriberId
for each subscriber in that group.
In addition to the checkpoint table name, the index consists of two parts, 1) the total number of subscribers in the group, and 2) the index of the given subscriber. The index must be fall in the range between 0 inclusively, and the total number of subscribers exclusively. For example, assume a subscription group with 3 subscribers, each covering a portion of the shards in source store, the index of the 3 subscribers should be 0, 1 and 2, respectively.
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Constructor Summary
ConstructorsConstructorDescriptionNoSQLSubscriberId
(int total, int index) Constructs a NoSQLSubscriber Id, which identifies a subscriber in the context of a subscription that is uniquely identified by the checkpoint table. -
Method Summary
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Constructor Details
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NoSQLSubscriberId
Constructs a NoSQLSubscriber Id, which identifies a subscriber in the context of a subscription that is uniquely identified by the checkpoint table.- Parameters:
total
- total number of members in the groupindex
- index of subscriber- Throws:
IllegalArgumentException
- if total is than less or equal to 0, or index is not in range between 0 inclusively and the total number of subscribers exclusively, or the groupId is null or empty.
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Method Details
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getTotal
public int getTotal()Gets total number of subscribers in the group.- Returns:
- total number of subscribers in the group
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getIndex
public int getIndex()Gets subscriber index in the group.- Returns:
- subscriber index in the group
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toString
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hashCode
public int hashCode() -
equals
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