dataframe-jdbc/org.jetbrains.kotlinx.dataframe.io.db/DbValuePreprocessor

DbValuePreprocessor

fun interface DbValuePreprocessor<in J, out D>

This preprocessor can be created for types where you want to convert the values coming from ResultSet.getObject to a different type more suitable to be put in a DataColumn

Type Parameters

the type of the value coming from the JDBC driver.

the type of the column values after preprocessing.

Functions

cast

fun <J, D> DbValuePreprocessor<*, *>.cast(): DbValuePreprocessor<J, D>

castToAny

fun DbValuePreprocessor<*, *>.castToAny(): DbValuePreprocessor<Any?, Any?>

preprocess

abstract fun preprocess(jdbcValue: J): D

Converts the given jdbcValue: J to a D.