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42 lines
2 KiB
PHP
42 lines
2 KiB
PHP
<?php
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/** @license MIT
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* Copyright 2017 J. King, Dustin Wilson et al.
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* See LICENSE and AUTHORS files for details */
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declare(strict_types=1);
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namespace JKingWeb\Arsse\Db;
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interface Driver {
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const TR_PEND = 0;
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const TR_COMMIT = 1;
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const TR_ROLLBACK = 2;
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const TR_PEND_COMMIT = -1;
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const TR_PEND_ROLLBACK = -2;
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public static function create(): Driver;
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// returns a human-friendly name for the driver (for display in installer, for example)
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public static function driverName(): string;
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// returns the version of the scheme of the opened database; if uninitialized should return 0
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public function schemaVersion(): int;
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// returns the schema set to be used for database set-up
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public static function schemaID(): string;
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// return a Transaction object
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public function begin(bool $lock = false): Transaction;
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// manually begin a real or synthetic transactions, with real or synthetic nesting
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public function savepointCreate(): int;
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// manually commit either the latest or all pending nested transactions
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public function savepointRelease(int $index = null): bool;
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// manually rollback either the latest or all pending nested transactions
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public function savepointUndo(int $index = null): bool;
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// attempt to perform an in-place upgrade of the database schema; this may be a no-op which always throws an exception
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public function schemaUpdate(int $to): bool;
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// execute one or more unsanitized SQL queries and return an indication of success
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public function exec(string $query): bool;
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// perform a single unsanitized query and return a result set
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public function query(string $query): Result;
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// ready a prepared statement for later execution
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public function prepare(string $query, ...$paramType): Statement;
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public function prepareArray(string $query, array $paramTypes): Statement;
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// report whether the database character set is correct/acceptable
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public function charsetAcceptable(): bool;
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}
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