Version 1

[yaffs-website] / web / core / lib / Drupal / Core / Config / NullStorage.php

diff --git a/web/core/lib/Drupal/Core/Config/NullStorage.php b/web/core/lib/Drupal/Core/Config/NullStorage.php
new file mode 100644 (file)
index 0000000..0dd1473
--- /dev/null
+++ b/web/core/lib/Drupal/Core/Config/NullStorage.php
@@ -0,0 +1,112 @@
+<?php
+
+namespace Drupal\Core\Config;
+
+/**
+ * Defines a stub storage.
+ *
+ * This storage is always empty; the controller reads and writes nothing.
+ *
+ * The stub implementation is needed for synchronizing configuration during
+ * installation of a module, in which case all configuration being shipped with
+ * the module is known to be new. Therefore, the module installation process is
+ * able to short-circuit the full diff against the active configuration; the
+ * diff would yield all currently available configuration as items to remove,
+ * since they do not exist in the module's default configuration directory.
+ *
+ * This also can be used for testing purposes.
+ */
+class NullStorage implements StorageInterface {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function exists($name) {
+    return FALSE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function read($name) {
+    return [];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function readMultiple(array $names) {
+    return [];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function write($name, array $data) {
+    return FALSE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function delete($name) {
+    return FALSE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function rename($name, $new_name) {
+    return FALSE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function encode($data) {
+    return $data;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function decode($raw) {
+    return $raw;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function listAll($prefix = '') {
+    return [];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function deleteAll($prefix = '') {
+    return FALSE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function createCollection($collection) {
+    // No op.
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getAllCollectionNames() {
+    return [];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCollectionName() {
+    return '';
+  }
+
+}