Package com.onec.schema

Class SchemaHistoryRepository

java.lang.Object

com.onec.schema.SchemaHistoryRepository

public class SchemaHistoryRepository
extends Object

Persistence for onec_schema_history: one row per applied schema change-set (kind SCHEMA, carrying the metadata snapshot and the DDL that was executed) and one row per executed AppMigration (kind MIGRATION, claimed via a unique constraint so concurrent instances run each migration exactly once).

Field Summary

Fields

Modifier and Type	Field	Description
static final String	TABLE

Constructor Summary

Constructors

Constructor	Description
SchemaHistoryRepository()

Method Summary

Modifier and Type	Method	Description
Set<String>	appliedMigrationVersions(org.jdbi.v3.core.Jdbi jdbi)
void	ensure(org.jdbi.v3.core.Jdbi jdbi)
Optional<String>	latestSnapshotJson(org.jdbi.v3.core.Jdbi jdbi)
void	recordSchema(org.jdbi.v3.core.Jdbi jdbi, String snapshotJson, List<String> appliedDdl, String description)
boolean	tryClaimMigration(org.jdbi.v3.core.Handle handle, String version, String description)	Claims a migration version inside the caller's transaction.

Methods inherited from class java.lang.Object

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

Field Details

TABLE

public static final String TABLE

See Also:

• Constant Field Values

Constructor Details

SchemaHistoryRepository

public SchemaHistoryRepository()

Method Details

ensure

public void ensure(org.jdbi.v3.core.Jdbi jdbi)

latestSnapshotJson

public Optional<String> latestSnapshotJson(org.jdbi.v3.core.Jdbi jdbi)

recordSchema

public void recordSchema(org.jdbi.v3.core.Jdbi jdbi,
 String snapshotJson,
 List<String> appliedDdl,
 String description)

appliedMigrationVersions

public Set<String> appliedMigrationVersions(org.jdbi.v3.core.Jdbi jdbi)

tryClaimMigration

public boolean tryClaimMigration(org.jdbi.v3.core.Handle handle,
 String version,
 String description)

Claims a migration version inside the caller's transaction. Returns false when the version is already recorded (applied earlier, or claimed concurrently by another instance — the unique constraint on (_kind, _version) arbitrates).