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/*
* Copyright (c) 2016, PostgreSQL Global Development Group
* See the LICENSE file in the project root for more information.
*/
package org.postgresql.replication;
import org.postgresql.PGProperty;
import org.postgresql.replication.fluent.ChainedCreateReplicationSlotBuilder;
import org.postgresql.replication.fluent.ChainedStreamBuilder;
import java.sql.SQLException;
/**
* Api available only if connection was create with required for replication properties: {@link
* PGProperty#REPLICATION} and {@link PGProperty#ASSUME_MIN_SERVER_VERSION}. Without it property
* building replication stream fail with exception.
*/
public interface PGReplicationConnection {
/**
* After start replication stream this connection not available to use for another queries until
* replication stream will not close.
*
* @return not null fluent api for build replication stream
*/
ChainedStreamBuilder replicationStream();
/**
* Create replication slot, that can be next use in {@link PGReplicationConnection#replicationStream()}
*
* Replication slots provide an automated way to ensure that the master does not remove WAL
* segments until they have been received by all standbys, and that the master does not remove
* rows which could cause a recovery conflict even when the standby is disconnected.
*
* @return not null fluent api for build create replication slot
*/
ChainedCreateReplicationSlotBuilder createReplicationSlot();
/**
* @param slotName not null replication slot name exists in database that should be drop
* @throws SQLException if the replication slot cannot be dropped.
*/
void dropReplicationSlot(String slotName) throws SQLException;
}
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