Package dev.frostlake.executor

Class DmlWriteTarget

java.lang.Object

dev.frostlake.executor.DmlWriteTarget

public final class DmlWriteTarget
extends Object

The envelope live wraps a DML write failure in — DML operation to table T failed on column C with error: … — around whatever sentence the value itself earned.

★ THE ENVELOPE IS THE DML LAYER'S, NOT THE VALUE'S. The same SELECT COALESCE(va, d) FROM vf that a CTAS wraps is answered bare when written on its own, so it belongs to the statement writing the rows rather than to the conversion that failed.

★ HOW THE TABLE IS NAMED DEPENDS ON THE STATEMENT. A CTAS always spells it FULLY QUALIFIED, even when the CREATE named it bare; every other DML echoes the name the statement wrote, upper-cased. Both live-measured in one run. Only the CTAS half is applied here so far — see the task list for the written-name half, which needs the spelling threaded down from each handler.

Method Summary

Modifier and Type	Method	Description
static RuntimeException	failedOnColumn(String table, String column, RuntimeException failure)
static boolean	isRowTimeFailure(RuntimeException failure)	Whether a failure belongs INSIDE the envelope.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

isRowTimeFailure

public static boolean isRowTimeFailure(RuntimeException failure)

Whether a failure belongs INSIDE the envelope. A COMPILATION refusal does not: live answers CREATE TABLE t AS SELECT NOSUCHFN(x) … with the bare "SQL compilation error" sentence, because the statement never got far enough to write anything. Only a failure raised while VALUES were being produced is a DML failure, and those carry no prefix at all — which is what makes the prefix the discriminator rather than a list of sentences.

Parameters:

failure - the failure

Returns:

true when the envelope applies

failedOnColumn

public static RuntimeException failedOnColumn(String table,
 String column,
 RuntimeException failure)

Parameters:

table - the table as it should be named

column - the column the failure is attributed to

failure - the inner failure, whose sentence is kept verbatim

Returns:

the wrapped refusal