[
https://issues.apache.org/jira/browse/FLINK-987?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Flink Jira Bot updated FLINK-987:
---------------------------------
Labels: auto-deprioritized-major auto-deprioritized-minor (was:
auto-deprioritized-major stale-minor)
Priority: Not a Priority (was: Minor)
This issue was labeled "stale-minor" 7 days ago and has not received any
updates so it is being deprioritized. If this ticket is actually Minor, please
raise the priority and ask a committer to assign you the issue or revive the
public discussion.
> Extend TypeSerializers and -Comparators to work directly on Memory Segments
> ---------------------------------------------------------------------------
>
> Key: FLINK-987
> URL: https://issues.apache.org/jira/browse/FLINK-987
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Task
> Affects Versions: 0.6-incubating
> Reporter: Stephan Ewen
> Priority: Not a Priority
> Labels: auto-deprioritized-major, auto-deprioritized-minor
>
> As per discussion with [~till.rohrmann], [~uce], [~aljoscha], we suggest to
> change the way that the TypeSerialzers/Comparators and
> DataInputViews/DataOutputViews work.
> The goal is to allow more flexibility in the construction on the binary
> representation of data types, and to allow partial deserialization of
> individual fields. Both is currently prohibited by the fact that the
> abstraction of the memory (into which the data goes) is a stream abstraction
> ({{DataInputView}}, {{DataOutputView}}).
> An idea is to offer a random-access buffer like view for construction and
> random-access deserialization, as well as various methods to copy elements in
> a binary fashion between such buffers and streams.
> A possible set of methods for the {{TypeSerializer}} could be:
> {code}
> long serialize(T record, TargetBuffer buffer);
>
> T deserialize(T reuse, SourceBuffer source);
>
> void ensureBufferSufficientlyFilled(SourceBuffer source);
>
> <X> X deserializeField(X reuse, int logicalPos, SourceBuffer buffer);
>
> int getOffsetForField(int logicalPos, int offset, SourceBuffer buffer);
>
> void copy(DataInputView in, TargetBuffer buffer);
>
> void copy(SourceBuffer buffer,, DataOutputView out);
>
> void copy(DataInputView source, DataOutputView target);
> {code}
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
