[
https://issues.apache.org/jira/browse/BEAM-225?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jesse Anderson updated BEAM-225:
--------------------------------
Description:
There should be a built-in class for common types like String, Float, etc.
Right now, all types have to create an inline TypeDescriptor:
{code:java}
PCollection<String> words = suits.apply(
FlatMapElements.via(
(String line) -> Arrays.asList(line.split(" "))
).withOutputType(new TypeDescriptor<String>() {}));
{code}
The should be a built-in class with common types like String so you don't have
to create a TypeDescriptor each time like:
{code:java}
PCollection<String> words = suits.apply(
FlatMapElements.via(
(String line) -> Arrays.asList(line.split(" "))
).withOutputType(TypeDescriptors.STRINGS));
{code}
Another possibility is to make it a static method:
{code:java}
PCollection<String> words = suits.apply(
FlatMapElements.via(
(String line) -> Arrays.asList(line.split(" "))
).withOutputType(TypeDescriptors.strings()));
{code}
An example of this is Apache Crunch's Writables class
https://crunch.apache.org/apidocs/0.11.0/org/apache/crunch/types/writable/Writables.html.
was:
There should be a built-in class for common types like String, Float, etc.
Right now, all types have to create an inline TypeDescriptor:
{code:java}
PCollection<String> words = suits.apply(
FlatMapElements.via(
(String line) -> Arrays.asList(line.split(" "))
).withOutputType(new TypeDescriptor<String>() {}));
{code}
The should be a built-in class with common types like String so you don't have
to create a TypeDescriptor each time like:
{code:java}
PCollection<String> words = suits.apply(
FlatMapElements.via(
(String line) -> Arrays.asList(line.split(" "))
).withOutputType(TypeDescriptors.STRINGS));
{code}
An example of this is Apache Crunch's Writables class
https://crunch.apache.org/apidocs/0.11.0/org/apache/crunch/types/writable/Writables.html.
> Create Class for Common TypeDescriptors
> ---------------------------------------
>
> Key: BEAM-225
> URL: https://issues.apache.org/jira/browse/BEAM-225
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-core
> Reporter: Jesse Anderson
> Assignee: Davor Bonaci
>
> There should be a built-in class for common types like String, Float, etc.
> Right now, all types have to create an inline TypeDescriptor:
> {code:java}
> PCollection<String> words = suits.apply(
> FlatMapElements.via(
> (String line) -> Arrays.asList(line.split(" "))
> ).withOutputType(new TypeDescriptor<String>() {}));
> {code}
> The should be a built-in class with common types like String so you don't
> have to create a TypeDescriptor each time like:
> {code:java}
> PCollection<String> words = suits.apply(
> FlatMapElements.via(
> (String line) -> Arrays.asList(line.split(" "))
> ).withOutputType(TypeDescriptors.STRINGS));
> {code}
> Another possibility is to make it a static method:
> {code:java}
> PCollection<String> words = suits.apply(
> FlatMapElements.via(
> (String line) -> Arrays.asList(line.split(" "))
> ).withOutputType(TypeDescriptors.strings()));
> {code}
> An example of this is Apache Crunch's Writables class
> https://crunch.apache.org/apidocs/0.11.0/org/apache/crunch/types/writable/Writables.html.
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