io.spine.server.entity.storage

Interface Column

@Immutable
public interface Column

A column of the entity.

Columns are the entity state fields which are stored separately from the entity record and can be used as criteria for query filters.

The name of the column represents the value which needs to be specified to the filter. The type is an expected type of the filter value.

Method Summary

Modifier and Type	Method and Description
ColumnName	name() The name of the column in the storage.
java.lang.Class<?>	type() The type of the column.

Method Detail

name

ColumnName name()

The name of the column in the storage.

type

java.lang.Class<?> type()

The type of the column.

As user-defined columns are proto-based, there is a fixed set of possible column types. See ColumnMapping.