org.apache.pulsar.common.policies.data.SchemaAutoUpdateCompatibilityStrategy Maven / Gradle / Ivy
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*
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*
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package org.apache.pulsar.common.policies.data;
/**
* Strategy to use when checking an auto-updated schema for compatibility to the current schema.
*/
public enum SchemaAutoUpdateCompatibilityStrategy {
/**
* Don't allow any auto updates.
*/
AutoUpdateDisabled,
/**
* Messages written in the previous schema can be read by the new schema.
* To be backward compatible, the new schema must not add any new fields that
* don't have default values. However, it may remove fields.
*/
Backward,
/**
* Messages written in the new schema can be read by the previous schema.
* To be forward compatible, the new schema must not remove any fields which
* don't have default values in the previous schema. However, it may add new fields.
*/
Forward,
/**
* Backward and Forward.
*/
Full,
/**
* Always Compatible - The new schema will not be checked for compatibility against
* old schemas. In other words, new schemas will always be marked assumed compatible.
*/
AlwaysCompatible,
/**
* Be similar to Backward. BackwardTransitive ensure all previous version schema can
* be read by the new schema.
*/
BackwardTransitive,
/**
* Be similar to Forward, ForwardTransitive ensure new schema can be ready by all previous
* version schema.
*/
ForwardTransitive,
/**
* BackwardTransitive and ForwardTransitive.
*/
FullTransitive
}