From: Roland Häder <roland@mxchange.org>
Date: Thu, 21 Aug 2025 21:54:25 +0000 (+0200)
Subject: Continued:
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=14e296eab14e7efbbde6c4b431f0999650a120ed;p=core.git

Continued:
- added more type-hints
- moved constants from BaseDatabaseResult to SearchableResult
---

diff --git a/framework/main/classes/class_BaseFrameworkSystem.php b/framework/main/classes/class_BaseFrameworkSystem.php
index a8d65bed..60c9519a 100644
--- a/framework/main/classes/class_BaseFrameworkSystem.php
+++ b/framework/main/classes/class_BaseFrameworkSystem.php
@@ -720,7 +720,7 @@ Loaded includes:
 		// Do we have an entry?
 		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-FRAMEWORK-SYSTEM: this->resultInstance->isValid()=%d', intval($this->getResultInstance()->isValid())));
 		if ($this->getResultInstance()->valid() === false) {
-			// @TODO Move the constant to e.g. BaseDatabaseResult when there is a non-cached database result available
+			// @TODO Move the constant to e.g. SearchableResult when there is a non-cached database result available
 			throw new InvalidDatabaseResultException(array($this, $this->getResultInstance()), CachedDatabaseResult::EXCEPTION_INVALID_DATABASE_RESULT);
 		}
 
diff --git a/framework/main/classes/database/backend/lfdb_legacy/class_CachedLocalFileDatabase.php b/framework/main/classes/database/backend/lfdb_legacy/class_CachedLocalFileDatabase.php
index d693aced..b0043b30 100644
--- a/framework/main/classes/database/backend/lfdb_legacy/class_CachedLocalFileDatabase.php
+++ b/framework/main/classes/database/backend/lfdb_legacy/class_CachedLocalFileDatabase.php
@@ -15,7 +15,7 @@ use Org\Mxchange\CoreFramework\Factory\Object\ObjectFactory;
 use Org\Mxchange\CoreFramework\Filesystem\FileNotFoundException;
 use Org\Mxchange\CoreFramework\Generic\FrameworkException;
 use Org\Mxchange\CoreFramework\Generic\FrameworkInterface;
-use Org\Mxchange\CoreFramework\Result\Database\BaseDatabaseResult;
+use Org\Mxchange\CoreFramework\Result\Search\SearchableResult;
 use Org\Mxchange\CoreFramework\Traits\Compressor\Channel\CompressorChannelTrait;
 use Org\Mxchange\CoreFramework\Traits\Handler\Io\IoHandlerTrait;
 
@@ -420,9 +420,9 @@ class CachedLocalFileDatabase extends BaseDatabaseBackend implements DatabaseBac
 
 			// Initialize the result data, this need to be rewritten e.g. if a local file cannot be read
 			$resultData = [
-				BaseDatabaseResult::RESULT_NAME_STATUS    => self::RESULT_OKAY,
-				BaseDatabaseResult::RESULT_NAME_ROWS      => [],
-				BaseDatabaseResult::RESULT_NAME_EXCEPTION => NULL,
+				SearchableResult::RESULT_NAME_STATUS    => self::RESULT_OKAY,
+				SearchableResult::RESULT_NAME_ROWS      => [],
+				SearchableResult::RESULT_NAME_EXCEPTION => NULL,
 			];
 
 			// Initialize limit/skip
@@ -474,10 +474,10 @@ class CachedLocalFileDatabase extends BaseDatabaseBackend implements DatabaseBac
 						$dataArray[$this->getIndexKey()] = $idx;
 
 						// Entry found!
-						array_push($resultData[BaseDatabaseResult::RESULT_NAME_ROWS], $dataArray);
+						array_push($resultData[SearchableResult::RESULT_NAME_ROWS], $dataArray);
 
 						// Count found entries up
-						//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('CACHED-LOCAL-FILE-DATABASE: resultData[%s]()=%d', BaseDatabaseResult::RESULT_NAME_ROWS, count($resultData[BaseDatabaseResult::RESULT_NAME_ROWS])));
+						//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('CACHED-LOCAL-FILE-DATABASE: resultData[%s]()=%d', SearchableResult::RESULT_NAME_ROWS, count($resultData[SearchableResult::RESULT_NAME_ROWS])));
 						$limitFound++;
 					}
 				} else {
diff --git a/framework/main/classes/database/class_BaseDatabaseResult.php b/framework/main/classes/database/class_BaseDatabaseResult.php
index 69cf36b2..6e093ae6 100644
--- a/framework/main/classes/database/class_BaseDatabaseResult.php
+++ b/framework/main/classes/database/class_BaseDatabaseResult.php
@@ -30,10 +30,6 @@ use Org\Mxchange\CoreFramework\Object\BaseFrameworkSystem;
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 abstract class BaseDatabaseResult extends BaseFrameworkSystem {
-	// Result array names
-	const RESULT_NAME_ROWS      = 'rows';
-	const RESULT_NAME_STATUS    = 'status';
-	const RESULT_NAME_EXCEPTION = 'exception';
 
 	/**
 	 * Update criteria instance
@@ -56,7 +52,7 @@ abstract class BaseDatabaseResult extends BaseFrameworkSystem {
 	 * @param	$updateInstance		An instance of a LocalUpdateCriteria clase
 	 * @return	void
 	 */
-	public final function setUpdateInstance (LocalUpdateCriteria $updateInstance) {
+	public final function setUpdateInstance (LocalUpdateCriteria $updateInstance): void {
 		$this->updateInstance = $updateInstance;
 	}
 
@@ -65,7 +61,7 @@ abstract class BaseDatabaseResult extends BaseFrameworkSystem {
 	 *
 	 * @return	$updateInstance		Updateable criteria instance
 	 */
-	public final function getUpdateInstance () {
+	public final function getUpdateInstance (): LocalUpdateCriteria {
 		return $this->updateInstance;
 	}
 
diff --git a/framework/main/classes/database/frontend/class_BaseDatabaseFrontend.php b/framework/main/classes/database/frontend/class_BaseDatabaseFrontend.php
index 525b7efc..a77c54bc 100644
--- a/framework/main/classes/database/frontend/class_BaseDatabaseFrontend.php
+++ b/framework/main/classes/database/frontend/class_BaseDatabaseFrontend.php
@@ -9,7 +9,7 @@ use Org\Mxchange\CoreFramework\Criteria\Storing\StoreableCriteria;
 use Org\Mxchange\CoreFramework\Database\Backend\BaseDatabaseBackend;
 use Org\Mxchange\CoreFramework\Factory\Object\ObjectFactory;
 use Org\Mxchange\CoreFramework\Object\BaseFrameworkSystem;
-use Org\Mxchange\CoreFramework\Result\Database\BaseDatabaseResult;
+use Org\Mxchange\CoreFramework\Result\Search\SearchableResult;
 use Org\Mxchange\CoreFramework\Traits\Cache\CacheableTrait;
 
 // Import SPL stuff
@@ -74,7 +74,7 @@ abstract class BaseDatabaseFrontend extends BaseFrameworkSystem {
 	 *
 	 * @return	void
 	 */
-	private function initCacheInstance () {
+	private function initCacheInstance (): void {
 		// Set "cache" attributes
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-DATABASE-FRONTEND: CALLED!');
 		$this->databaseCacheEnabled = FrameworkBootstrap::getConfigurationInstance()->isEnabled('database_cache');
@@ -96,7 +96,7 @@ abstract class BaseDatabaseFrontend extends BaseFrameworkSystem {
 	 * @param	$tableName	Name of table name to set
 	 * @return	void
 	 */
-	protected final function setTableName (string $tableName) {
+	protected final function setTableName (string $tableName): void {
 		$this->tableName = $tableName;
 	}
 
@@ -105,7 +105,7 @@ abstract class BaseDatabaseFrontend extends BaseFrameworkSystem {
 	 *
 	 * @return	$tableName	Name of table name to set
 	 */
-	protected final function getTableName () {
+	protected final function getTableName (): string {
 		return $this->tableName;
 	}
 
@@ -116,7 +116,7 @@ abstract class BaseDatabaseFrontend extends BaseFrameworkSystem {
 	 * @param	$onlyKeys			Only use these keys for a cache key
 	 * @return	$cacheKey			A cache key suitable for lookup/storage purposes
 	 */
-	protected function getCacheKeyByCriteria (Criteria $criteriaInstance, array $onlyKeys = []) {
+	protected function getCacheKeyByCriteria (Criteria $criteriaInstance, array $onlyKeys = []): string {
 		// Generate it
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-DATABASE-FRONTEND: criteriaInstance=%s,onlyKeys()=%d - CALLED!', $criteriaInstance->__toString(), count($onlyKeys)));
 		$cacheKey = sprintf('%s@%s',
@@ -136,7 +136,7 @@ abstract class BaseDatabaseFrontend extends BaseFrameworkSystem {
 	 * @param	$onlyKeys			Only use these keys for a cache key
 	 * @return	void
 	 */
-	protected function queryInsertDataSet (StoreableCriteria $dataSetInstance, array $onlyKeys = []) {
+	protected function queryInsertDataSet (StoreableCriteria $dataSetInstance, array $onlyKeys = []): void {
 		// Default cache key is NULL
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-DATABASE-FRONTEND: dataSetInstance=%s,onlyKeys()=%d - CALLED!', $dataSetInstance->__toString(), count($onlyKeys)));
 		$cacheKey = NULL;
@@ -171,7 +171,7 @@ abstract class BaseDatabaseFrontend extends BaseFrameworkSystem {
 	 * @param	$onlyKeys			Only use these keys for a cache key
 	 * @return	void
 	 */
-	protected function queryUpdateDataSet (StoreableCriteria $dataSetInstance, array $onlyKeys = []) {
+	protected function queryUpdateDataSet (StoreableCriteria $dataSetInstance, array $onlyKeys = []): void {
 		// Init cache key
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-DATABASE-FRONTEND: dataSetInstance=%s,onlyKeys()=%d - CALLED!', $dataSetInstance->__toString(), count($onlyKeys)));
 		$cacheKey = NULL;
@@ -203,7 +203,7 @@ abstract class BaseDatabaseFrontend extends BaseFrameworkSystem {
 	 *
 	 * @return	$indexKey	Index key
 	 */
-	public final function getIndexKey () {
+	public final function getIndexKey (): string {
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-DATABASE-FRONTEND: CALLED!');
 		return FrameworkBootstrap::getDatabaseInstance()->getIndexKey();
 	}
@@ -211,9 +211,9 @@ abstract class BaseDatabaseFrontend extends BaseFrameworkSystem {
 	/**
 	 * Getter for last exception
 	 *
-	 * @return	$lastException	Last exception or NULL if none occured
+	 * @return	$lastException	Last exception
 	 */
-	public final function getLastException () {
+	public final function getLastException (): FrameworkException {
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-DATABASE-FRONTEND: CALLED!');
 		return FrameworkBootstrap::getDatabaseInstance()->getLastException();
 	}
@@ -224,9 +224,9 @@ abstract class BaseDatabaseFrontend extends BaseFrameworkSystem {
 	 *
 	 * @param	$criteriaInstance	An instance of a Criteria class
 	 * @param	$onlyKeys			Only use these keys for a cache key
-	 * @return	$resultInstance		An instance of a database result class
+	 * @return	$resultInstance		An instance of a SearchableResult class
 	 */
-	public function doSelectByCriteria (Criteria $criteriaInstance, array $onlyKeys = []) {
+	public function doSelectByCriteria (Criteria $criteriaInstance, array $onlyKeys = []): SearchableResult {
 		// Default cache key if cache is not enabled
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-DATABASE-FRONTEND: criteriaInstance=%s,onlyKeys()=%d - CALLED!', $criteriaInstance->__toString(), count($onlyKeys)));
 		$cacheKey = NULL;
@@ -241,7 +241,7 @@ abstract class BaseDatabaseFrontend extends BaseFrameworkSystem {
 
 		// Does this key exists in cache?
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-DATABASE-FRONTEND: this->databaseCacheEnabled=%d,cacheKey[%s]=%s', intval($this->databaseCacheEnabled), gettype($cacheKey), $cacheKey));
-		if (($this->databaseCacheEnabled === true) && ($this->getCacheInstance()->offsetExists($cacheKey, BaseDatabaseResult::RESULT_NAME_ROWS, 1))) {
+		if (($this->databaseCacheEnabled === true) && ($this->getCacheInstance()->offsetExists($cacheKey, SearchableResult::RESULT_NAME_ROWS, 1))) {
 			// Then use this result
 			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-DATABASE-FRONTEND: Cache used for cacheKey=%s', $cacheKey));
 			$result = $this->getCacheInstance()->offsetGet($cacheKey);
@@ -263,16 +263,16 @@ abstract class BaseDatabaseFrontend extends BaseFrameworkSystem {
 			} else {
 				// This invalid result must be wrapped
 				$result = [
-					BaseDatabaseResult::RESULT_NAME_STATUS    => 'invalid',
-					BaseDatabaseResult::RESULT_NAME_EXCEPTION => FrameworkBootstrap::getDatabaseInstance()->getLastException(),
+					SearchableResult::RESULT_NAME_STATUS    => 'invalid',
+					SearchableResult::RESULT_NAME_EXCEPTION => FrameworkBootstrap::getDatabaseInstance()->getLastException(),
 				];
 			}
 		}
 
 		// Create an instance of a CachedDatabaseResult class with the given result
-		// @TODO Minor: Update above comment to e.g. BaseDatabaseResult
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-DATABASE-FRONTEND: result[%s]=%s,result[%s]?=%d,result[%s]?=%d', BaseDatabaseResult::RESULT_NAME_STATUS, $result[BaseDatabaseResult::RESULT_NAME_STATUS], BaseDatabaseResult::RESULT_NAME_ROWS, isset($result[BaseDatabaseResult::RESULT_NAME_ROWS]), BaseDatabaseResult::RESULT_NAME_EXCEPTION, isset($result[BaseDatabaseResult::RESULT_NAME_EXCEPTION])));
-		$resultInstance = ObjectFactory::createObjectByConfiguredName('database_result_class', array($result));
+		// @TODO Minor: Update above comment to e.g. SearchableResult
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-DATABASE-FRONTEND: result[%s]=%s,result[%s]?=%d,result[%s]?=%d', SearchableResult::RESULT_NAME_STATUS, $result[SearchableResult::RESULT_NAME_STATUS], SearchableResult::RESULT_NAME_ROWS, isset($result[SearchableResult::RESULT_NAME_ROWS]), SearchableResult::RESULT_NAME_EXCEPTION, isset($result[SearchableResult::RESULT_NAME_EXCEPTION])));
+		$resultInstance = ObjectFactory::createObjectByConfiguredName('database_result_class', [$result]);
 
 		// And return the instance
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-DATABASE-FRONTEND: resultInstance=%s - EXIT!', $resultInstance->__toString()));
diff --git a/framework/main/classes/database/migration/format_upgrade/class_ b/framework/main/classes/database/migration/format_upgrade/class_
index e5edead2..30146a41 100644
--- a/framework/main/classes/database/migration/format_upgrade/class_
+++ b/framework/main/classes/database/migration/format_upgrade/class_
@@ -37,7 +37,7 @@ class ???FormatVersion01To02Upgrade extends BaseFormatUpgrade implements Upgrade
 	 *
 	 * @return	$upgradeInstance	An instance of this UpgradeableDatabaseFormat class
 	 */
-	public final static function create???FormatVersion1To2Upgrade () {
+	public final static function create???FormatVersion1To2Upgrade (): UpgradeableDatabaseFormat {
 		// Get a new instance
 		$upgradeInstance = new ???FormatVersion1To2Upgrade();
 
diff --git a/framework/main/classes/database/result/class_CachedDatabaseResult.php b/framework/main/classes/database/result/class_CachedDatabaseResult.php
index cbf5b515..14ddc5ee 100644
--- a/framework/main/classes/database/result/class_CachedDatabaseResult.php
+++ b/framework/main/classes/database/result/class_CachedDatabaseResult.php
@@ -102,12 +102,12 @@ class CachedDatabaseResult extends BaseDatabaseResult implements SearchableResul
 		if (count($resultArray) == 0) {
 			// Cannot be empty
 			throw new InvalidArgumentException('Array "resultArray" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
-		} elseif (!array_key_exists(BaseDatabaseResult::RESULT_NAME_ROWS, $resultArray)) {
+		} elseif (!array_key_exists(SearchableResult::RESULT_NAME_ROWS, $resultArray)) {
 			// Yes, then abort here
-			throw new InvalidArgumentException(sprintf('resultArray(%d)=%s has no element "%s".', count($resultArray), print_r($resultArray, TRUE), BaseDatabaseResult::RESULT_NAME_ROWS));
-		} elseif (!array_key_exists(BaseDatabaseResult::RESULT_NAME_STATUS, $resultArray)) {
+			throw new InvalidArgumentException(sprintf('resultArray(%d)=%s has no element "%s".', count($resultArray), print_r($resultArray, TRUE), SearchableResult::RESULT_NAME_ROWS));
+		} elseif (!array_key_exists(SearchableResult::RESULT_NAME_STATUS, $resultArray)) {
 			// Yes, then abort here
-			throw new InvalidArgumentException(sprintf('resultArray(%d)=%s has no element "%s".', count($resultArray), print_r($resultArray, TRUE), BaseDatabaseResult::RESULT_NAME_STATUS));
+			throw new InvalidArgumentException(sprintf('resultArray(%d)=%s has no element "%s".', count($resultArray), print_r($resultArray, TRUE), SearchableResult::RESULT_NAME_STATUS));
 		}
 
 		// Get a new instance
@@ -122,7 +122,7 @@ class CachedDatabaseResult extends BaseDatabaseResult implements SearchableResul
 		$resultInstance->resetCurrentPosition();
 
 		// Set affected rows
-		$resultInstance->setAffectedRows(count($resultArray[BaseDatabaseResult::RESULT_NAME_ROWS]));
+		$resultInstance->setAffectedRows(count($resultArray[SearchableResult::RESULT_NAME_ROWS]));
 
 		// Return the instance
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('CACHED-DATABASE-RESULT: resultInstance=%s - EXIT!', $resultInstance->__toString()));
@@ -154,7 +154,7 @@ class CachedDatabaseResult extends BaseDatabaseResult implements SearchableResul
 		foreach ($updateInstance->getUpdateCriteria() as $criteriaKey => $criteriaValue) {
 			// Update data
 			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('CACHED-DATABASE-RESULT: criteriaKey=%s,criteriaValue[%s]=%s', $criteriaKey, gettype($criteriaValue), $criteriaValue));
-			$this->resultArray[BaseDatabaseResult::RESULT_NAME_ROWS][$entryKey][$criteriaKey] = $criteriaValue;
+			$this->resultArray[SearchableResult::RESULT_NAME_ROWS][$entryKey][$criteriaKey] = $criteriaValue;
 
 			// Mark it as out-dated
 			$this->outDated[$criteriaKey] = 1;
@@ -178,7 +178,7 @@ class CachedDatabaseResult extends BaseDatabaseResult implements SearchableResul
 		// Is the result valid?
 		if ($this->valid()) {
 			// Next entry found, so cache it
-			$this->currentRow = $this->resultArray[BaseDatabaseResult::RESULT_NAME_ROWS][$this->currentPos];
+			$this->currentRow = $this->resultArray[SearchableResult::RESULT_NAME_ROWS][$this->currentPos];
 		}
 
 		// Trace message
@@ -225,9 +225,9 @@ class CachedDatabaseResult extends BaseDatabaseResult implements SearchableResul
 		$current = NULL;
 
 		// Does the current enty exist?
-		if (isset($this->resultArray[BaseDatabaseResult::RESULT_NAME_ROWS][$this->currentPos])) {
+		if (isset($this->resultArray[SearchableResult::RESULT_NAME_ROWS][$this->currentPos])) {
 			// Then get it
-			$current = $this->resultArray[BaseDatabaseResult::RESULT_NAME_ROWS][$this->currentPos];
+			$current = $this->resultArray[SearchableResult::RESULT_NAME_ROWS][$this->currentPos];
 		}
 
 		// Return the result
@@ -243,7 +243,7 @@ class CachedDatabaseResult extends BaseDatabaseResult implements SearchableResul
 	public function valid (): bool {
 		// Check if all is fine ...
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('CACHED-DATABASE-RESULT: this->currentPos=%d - CALLED!', $this->currentPos));
-		$isValid = ($this->ifStatusIsOkay() && isset($this->resultArray[BaseDatabaseResult::RESULT_NAME_ROWS][$this->currentPos]) && isset($this->resultArray[BaseDatabaseResult::RESULT_NAME_ROWS][0]));
+		$isValid = ($this->ifStatusIsOkay() && isset($this->resultArray[SearchableResult::RESULT_NAME_ROWS][$this->currentPos]) && isset($this->resultArray[SearchableResult::RESULT_NAME_ROWS][0]));
 
 		// Return the result
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('CACHED-DATABASE-RESULT: isValid=%d - EXIT!', intval($isValid)));
@@ -258,7 +258,7 @@ class CachedDatabaseResult extends BaseDatabaseResult implements SearchableResul
 	public function count (): int {
 		// Count rows
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('CACHED-DATABASE-RESULT: CALLED!');
-		$count = count($this->resultArray[BaseDatabaseResult::RESULT_NAME_ROWS]);
+		$count = count($this->resultArray[SearchableResult::RESULT_NAME_ROWS]);
 
 		// Return it
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('CACHED-DATABASE-RESULT: count=%d - EXIT!', $count));
@@ -273,7 +273,7 @@ class CachedDatabaseResult extends BaseDatabaseResult implements SearchableResul
 	public function ifStatusIsOkay (): bool {
 		// Check all conditions
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('CACHED-DATABASE-RESULT: this->currentPos=%d - CALLED!', $this->currentPos));
-		$ifStatusOkay = (isset($this->resultArray[BaseDatabaseResult::RESULT_NAME_STATUS]) && $this->resultArray[BaseDatabaseResult::RESULT_NAME_STATUS] === BaseDatabaseBackend::RESULT_OKAY);
+		$ifStatusOkay = (isset($this->resultArray[SearchableResult::RESULT_NAME_STATUS]) && $this->resultArray[SearchableResult::RESULT_NAME_STATUS] === BaseDatabaseBackend::RESULT_OKAY);
 
 		// Return status
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('CACHED-DATABASE-RESULT: ifStatusOkay=%s - EXIT!', intval($ifStatusOkay)));
diff --git a/framework/main/interfaces/result/class_SearchableResult.php b/framework/main/interfaces/result/class_SearchableResult.php
index 5eaf6dbe..5a86cd0b 100644
--- a/framework/main/interfaces/result/class_SearchableResult.php
+++ b/framework/main/interfaces/result/class_SearchableResult.php
@@ -30,6 +30,11 @@ use Org\Mxchange\CoreFramework\Generic\FrameworkInterface;
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 interface SearchableResult extends FrameworkInterface {
+	// Result array names
+	const RESULT_NAME_ROWS      = 'rows';
+	const RESULT_NAME_STATUS    = 'status';
+	const RESULT_NAME_EXCEPTION = 'exception';
+
 	/**
 	 * Searches for an entry in the data result and returns it
 	 *
diff --git a/framework/main/middleware/database/class_DatabaseConnection.php b/framework/main/middleware/database/class_DatabaseConnection.php
index 2b18d36b..5b8a6b09 100644
--- a/framework/main/middleware/database/class_DatabaseConnection.php
+++ b/framework/main/middleware/database/class_DatabaseConnection.php
@@ -10,7 +10,7 @@ use Org\Mxchange\CoreFramework\Database\Backend\DatabaseBackend;
 use Org\Mxchange\CoreFramework\Generic\FrameworkInterface;
 use Org\Mxchange\CoreFramework\Middleware\BaseMiddleware;
 use Org\Mxchange\CoreFramework\Registry\Registerable;
-use Org\Mxchange\CoreFramework\Result\Database\BaseDatabaseResult;
+use Org\Mxchange\CoreFramework\Result\Search\SearchableResult;
 
 // Import SPL stuff
 use \InvalidArgumentException;
@@ -190,17 +190,17 @@ class DatabaseConnection extends BaseMiddleware implements DatabaseConnector, Re
 		$result = $this->backendInstance->querySelect($tableName, $criteriaInstance);
 
 		// Is a valid array returned?
-		if (!isset($result[BaseDatabaseResult::RESULT_NAME_STATUS])) {
+		if (!isset($result[SearchableResult::RESULT_NAME_STATUS])) {
 			// Missing element
-			throw new OutOfBoundsException(sprintf('result()=%d does not have element "%s"', count($result), BaseDatabaseResult::RESULT_NAME_STATUS), FrameworkInterface::EXCEPTION_OUT_OF_BOUNDS);
-		} elseif ($result[BaseDatabaseResult::RESULT_NAME_STATUS] != 'ok') {
+			throw new OutOfBoundsException(sprintf('result()=%d does not have element "%s"', count($result), SearchableResult::RESULT_NAME_STATUS), FrameworkInterface::EXCEPTION_OUT_OF_BOUNDS);
+		} elseif ($result[SearchableResult::RESULT_NAME_STATUS] != 'ok') {
 			// Is exception given?
-			if (isset($result[BaseDatabaseResult::RESULT_NAME_EXCEPTION])) {
+			if (isset($result[SearchableResult::RESULT_NAME_EXCEPTION])) {
 				// Attach it
-				throw new UnexpectedValueException(sprintf('result[%s]=%s is not "ok" with cause', BaseDatabaseResult::RESULT_NAME_STATUS), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT, BaseDatabaseResult::RESULT_NAME_EXCEPTION);
+				throw new UnexpectedValueException(sprintf('result[%s]=%s is not "ok" with cause', SearchableResult::RESULT_NAME_STATUS), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT, SearchableResult::RESULT_NAME_EXCEPTION);
 			} else {
 				// No exception attached
-				throw new UnexpectedValueException(sprintf('result[%s]=%s is not "ok"', BaseDatabaseResult::RESULT_NAME_STATUS, $result[BaseDatabaseResult::RESULT_NAME_STATUS]), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
+				throw new UnexpectedValueException(sprintf('result[%s]=%s is not "ok"', SearchableResult::RESULT_NAME_STATUS, $result[SearchableResult::RESULT_NAME_STATUS]), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 			}
 		}