com.vertica.sdk.vmap.v1.KeySelector Interface Reference

Inheritance diagram for com.vertica.sdk.vmap.v1.KeySelector:

Collaboration diagram for com.vertica.sdk.vmap.v1.KeySelector:

Public Member Functions
String	keyForIdent (String ident)

Detailed Description

An interface that provides deterministic resolution of identifiers to source data keys. See PartitionWriter#setRowFromMap(Map, com.vertica.sdk.TypeCoercion).

Member Function Documentation

String com.vertica.sdk.vmap.v1.KeySelector.keyForIdent

(

String

ident

)

Returns the key name of the first key that matches ident according to identifier comparison.

Parameters

ident

A SQL identifier or "key", similar to a column name.

Returns

A key from within the data that matches the ident, or null if not found.

Implemented in com.vertica.sdk.vmap.v1.Encoder.MatchingKeySelector, and com.vertica.sdk.vmap.v1.Encoder.