From 85473748235f6086452bd2eae00af1c868041ad0 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Roland=20H=C3=A4der?= <roland@mxchange.org>
Date: Tue, 30 May 2017 15:03:48 +0200
Subject: [PATCH] added call-back instance support
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Signed-off-by: Roland Häder <roland@mxchange.org>
---
 .../main/classes/lists/class_BaseList.php      | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/framework/main/classes/lists/class_BaseList.php b/framework/main/classes/lists/class_BaseList.php
index df6e7c08..5111b8d1 100644
--- a/framework/main/classes/lists/class_BaseList.php
+++ b/framework/main/classes/lists/class_BaseList.php
@@ -40,6 +40,11 @@ class BaseList extends BaseFrameworkSystem implements IteratorAggregate, Countab
 	const EXCEPTION_GROUP_NOT_FOUND     = 0xf21;
 	const EXCEPTION_INVALID_HASH        = 0xf22;
 
+	/**
+	 * Call-back instance
+	 */
+	private $callbackInstance = NULL;
+
 	/**
 	 * List groups array
 	 */
@@ -66,6 +71,16 @@ class BaseList extends BaseFrameworkSystem implements IteratorAggregate, Countab
 		parent::__construct($className);
 	}
 
+	/**
+	 * Setter for call-back instance
+	 *
+	 * @param	$callbackInstance	An instance of a FrameworkInterface class
+	 * @return	void
+	 */
+	public final function setCallbackInstance (FrameworkInterface $callbackInstance) {
+		$this->callbackInstance = $callbackInstance;
+	}
+
 	/**
 	 * Getter for iterator instance from this list
 	 *
@@ -308,6 +323,9 @@ class BaseList extends BaseFrameworkSystem implements IteratorAggregate, Countab
 		} elseif ((is_array($entry)) && (isset($entry['id']))) {
 			// Supported array found
 			$entry2 = crc32($entry['id']) . ':' . count($entry);
+		} elseif (($this->callbackInstance instanceof FrameworkInterface) && (is_callable(array($this->callbackInstance, 'generateListHashFromEntry')))) {
+			// Call it instead
+			$entry2 = $this->callbackInstance->generateListHashFromEntry($entry);
 		} else {
 			// Unsupported type detected
 			self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-LIST[' . __METHOD__ . ':' . __LINE__ . ']: Entry type ' . gettype($entry) . ' is unsupported.');
-- 
2.39.5