public interface CoderFactory
CoderFactory creates coders and decomposes values.
It may operate on a parameterized type, such as List,
in which case the create(java.util.List<? extends com.google.cloud.dataflow.sdk.coders.Coder<?>>) method accepts a list of
coders to use for the type parameters.| Modifier and Type | Method and Description |
|---|---|
Coder<?> |
create(List<? extends Coder<?>> componentCoders)
Returns a
Coder<?>, given argument coder to use for
values of a particular type, given the Coders for each of
the type's generic parameter types. |
List<Object> |
getInstanceComponents(Object value)
Returns a list of objects contained in
value, one per
type argument, or null if none can be determined. |
Coder<?> create(List<? extends Coder<?>> componentCoders)
Coder<?>, given argument coder to use for
values of a particular type, given the Coders for each of
the type's generic parameter types.List<Object> getInstanceComponents(Object value)
value, one per
type argument, or null if none can be determined.
The list of returned objects should be the same size as the
list of coders required by create(java.util.List<? extends com.google.cloud.dataflow.sdk.coders.Coder<?>>).