Package dev.frostlake.transaction

Class TableLock

java.lang.Object

dev.frostlake.transaction.TableLock

public class TableLock
extends Object

One table-level lock a transaction is HOLDING, as SHOW LOCKS reports it (live-verified): partition-rewriting DML — UPDATE, DELETE (even one matching no rows), MERGE, TRUNCATE — registers a PARTITIONS lock on the table's fully qualified name, one row per (transaction, table) however many statements touch it, released when the transaction ends. An append-only INSERT holds no lock. acquiredOn is the FIRST touch; queryId is the query that acquired it.

Constructor Summary

Constructors

Constructor	Description
TableLock(long acquiredOn, String queryId)

Method Summary

Modifier and Type	Method	Description
long	getAcquiredOn()	Epoch millis of the first statement that touched the table in this transaction.
String	getQueryId()	The id of the query that acquired the lock.

Methods inherited from class java.lang.Object

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

Constructor Details

TableLock

public TableLock(long acquiredOn,
 String queryId)

Method Details

getAcquiredOn

public long getAcquiredOn()

Epoch millis of the first statement that touched the table in this transaction.

getQueryId

public String getQueryId()

The id of the query that acquired the lock.