SpringCloud/spring-cloud-stream
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

GH-1739 Removed references to partitionSelectorClass and partitionKeyExtractorClass properties

Browse Source 
Resolves #1739
This commit is contained in:
Oleg Zhurakousky
2019-07-30 14:46:24 +02:00
parent e08f669a54
commit eb7f774c4a
1 changed files with 4 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
docs/src/main/asciidoc/spring-cloud-stream.adoc
View File

@@ -1538,28 +1538,13 @@ Signals if this consumer needs to be started automatically
Default: `true`.
partitionKeyExpression::
A SpEL expression that determines how to partition outbound data.
If set, or if `partitionKeyExtractorClass` is set, outbound data on this channel is partitioned. `partitionCount` must be set to a value greater than 1 to be effective.
Mutually exclusive with `partitionKeyExtractorClass`.
If set, outbound data on this channel is partitioned. `partitionCount` must be set to a value greater than 1 to be effective.
See `<<partitioning>>`.
+
Default: null.
partitionKeyExtractorClass::
A `PartitionKeyExtractorStrategy` implementation.
If set, or if `partitionKeyExpression` is set, outbound data on this channel is partitioned. `partitionCount` must be set to a value greater than 1 to be effective.
Mutually exclusive with `partitionKeyExpression`.
See `<<partitioning>>`.
+
Default: `null`.
partitionSelectorClass::
A `PartitionSelectorStrategy` implementation.
Mutually exclusive with `partitionSelectorExpression`.
If neither is set, the partition is selected as the `hashCode(key) % partitionCount`, where `key` is computed through either `partitionKeyExpression` or `partitionKeyExtractorClass`.
+
Default: `null`.
partitionSelectorExpression::
A SpEL expression for customizing partition selection.
Mutually exclusive with `partitionSelectorClass`.
If neither is set, the partition is selected as the `hashCode(key) % partitionCount`, where `key` is computed through either `partitionKeyExpression` or `partitionKeyExtractorClass`.
If neither is set, the partition is selected as the `hashCode(key) % partitionCount`, where `key` is computed through either `partitionKeyExpression`.
+
Default: `null`.
partitionCount::
@@ -2308,7 +2293,7 @@ public CustomPartitionKeyExtractorClass customPartitionKeyExtractor() {
----
NOTE: In previous versions of Spring Cloud Stream, you could specify the implementation of `org.springframework.cloud.stream.binder.PartitionKeyExtractorStrategy` by setting the `spring.cloud.stream.bindings.output.producer.partitionKeyExtractorClass` property.
Since version 2.0, this property is deprecated, and support for it will be removed in a future version.
Since version 3.0, this property is removed.
Once the message key is calculated, the partition selection process determines the target partition as a value between `0` and `partitionCount - 1`.
The default calculation, applicable in most scenarios, is based on the following formula: `key.hashCode() % partitionCount`.
@@ -2326,7 +2311,7 @@ public CustomPartitionSelectorClass customPartitionSelector() {
----
NOTE: In previous versions of Spring Cloud Stream you could specify the implementation of `org.springframework.cloud.stream.binder.PartitionSelectorStrategy` by setting the `spring.cloud.stream.bindings.output.producer.partitionSelectorClass` property.
Since version 2.0, this property is deprecated and support for it will be removed in a future version.
Since version 3.0, this property is removed.
[[spring-cloud-stream-overview-configuring-input-bindings-partitioning]]
==== Configuring Input Bindings for Partitioning