クラス yii\caching\DbCache

                public function __call($name, $params)
{
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $object) {
        if ($object->hasMethod($name)) {
            return call_user_func_array([$object, $name], $params);
        }
    }
    throw new UnknownMethodException('Calling unknown method: ' . get_class($this) . "::$name()");
}

            

                public function __clone()
{
    $this->_events = [];
    $this->_eventWildcards = [];
    $this->_behaviors = null;
}

            

                public function __construct($config = [])
{
    if (!empty($config)) {
        Yii::configure($this, $config);
    }
    $this->init();
}

            

                public function __get($name)
{
    $getter = 'get' . $name;
    if (method_exists($this, $getter)) {
        // read property, e.g. getName()
        return $this->$getter();
    }
    // behavior property
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canGetProperty($name)) {
            return $behavior->$name;
        }
    }
    if (method_exists($this, 'set' . $name)) {
        throw new InvalidCallException('Getting write-only property: ' . get_class($this) . '::' . $name);
    }
    throw new UnknownPropertyException('Getting unknown property: ' . get_class($this) . '::' . $name);
}

            

                public function __isset($name)
{
    $getter = 'get' . $name;
    if (method_exists($this, $getter)) {
        return $this->$getter() !== null;
    }
    // behavior property
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canGetProperty($name)) {
            return $behavior->$name !== null;
        }
    }
    return false;
}

            

                public function __set($name, $value)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        // set property
        $this->$setter($value);
        return;
    } elseif (strncmp($name, 'on ', 3) === 0) {
        // on event: attach event handler
        $this->on(trim(substr($name, 3)), $value);
        return;
    } elseif (strncmp($name, 'as ', 3) === 0) {
        // as behavior: attach behavior
        $name = trim(substr($name, 3));
        $this->attachBehavior($name, $value instanceof Behavior ? $value : Yii::createObject($value));
        return;
    }
    // behavior property
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canSetProperty($name)) {
            $behavior->$name = $value;
            return;
        }
    }
    if (method_exists($this, 'get' . $name)) {
        throw new InvalidCallException('Setting read-only property: ' . get_class($this) . '::' . $name);
    }
    throw new UnknownPropertyException('Setting unknown property: ' . get_class($this) . '::' . $name);
}

            

                public function __unset($name)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        $this->$setter(null);
        return;
    }
    // behavior property
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $behavior) {
        if ($behavior->canSetProperty($name)) {
            $behavior->$name = null;
            return;
        }
    }
    throw new InvalidCallException('Unsetting an unknown or read-only property: ' . get_class($this) . '::' . $name);
}

            

                public function add($key, $value, $duration = 0, $dependency = null)
{
    if ($dependency !== null && $this->serializer !== false) {
        $dependency->evaluateDependency($this);
    }
    if ($this->serializer === null) {
        $value = serialize([$value, $dependency]);
    } elseif ($this->serializer !== false) {
        $value = call_user_func($this->serializer[0], [$value, $dependency]);
    }
    $key = $this->buildKey($key);
    return $this->addValue($key, $value, $duration);
}

            

                protected function addValues($data, $duration)
{
    $failedKeys = [];
    foreach ($data as $key => $value) {
        if ($this->addValue($key, $value, $duration) === false) {
            $failedKeys[] = $key;
        }
    }
    return $failedKeys;
}

            

                public function attachBehavior($name, $behavior)
{
    $this->ensureBehaviors();
    return $this->attachBehaviorInternal($name, $behavior);
}

            

                public function attachBehaviors($behaviors)
{
    $this->ensureBehaviors();
    foreach ($behaviors as $name => $behavior) {
        $this->attachBehaviorInternal($name, $behavior);
    }
}

            

                public function behaviors()
{
    return [];
}

            

                public function buildKey($key)
{
    if (is_string($key)) {
        $key = ctype_alnum($key) && StringHelper::byteLength($key) <= 32 ? $key : md5($key);
    } else {
        if ($this->_igbinaryAvailable) {
            $serializedKey = igbinary_serialize($key);
        } else {
            $serializedKey = serialize($key);
        }
        $key = md5($serializedKey);
    }
    return $this->keyPrefix . $key;
}

            

                public function canGetProperty($name, $checkVars = true, $checkBehaviors = true)
{
    if (method_exists($this, 'get' . $name) || $checkVars && property_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->canGetProperty($name, $checkVars)) {
                return true;
            }
        }
    }
    return false;
}

            

                public function canSetProperty($name, $checkVars = true, $checkBehaviors = true)
{
    if (method_exists($this, 'set' . $name) || $checkVars && property_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->canSetProperty($name, $checkVars)) {
                return true;
            }
        }
    }
    return false;
}

            

                public static function className()
{
    return get_called_class();
}

            

                public function delete($key)
{
    $key = $this->buildKey($key);
    return $this->deleteValue($key);
}

            

                public function detachBehavior($name)
{
    $this->ensureBehaviors();
    if (isset($this->_behaviors[$name])) {
        $behavior = $this->_behaviors[$name];
        unset($this->_behaviors[$name]);
        $behavior->detach();
        return $behavior;
    }
    return null;
}

            

                public function detachBehaviors()
{
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $name => $behavior) {
        $this->detachBehavior($name);
    }
}

            

                public function ensureBehaviors()
{
    if ($this->_behaviors === null) {
        $this->_behaviors = [];
        foreach ($this->behaviors() as $name => $behavior) {
            $this->attachBehaviorInternal($name, $behavior);
        }
    }
}

            

                public function flush()
{
    return $this->flushValues();
}

            

                public function get($key)
{
    $key = $this->buildKey($key);
    $value = $this->getValue($key);
    if ($value === false || $this->serializer === false) {
        return $value;
    } elseif ($this->serializer === null) {
        $value = unserialize((string)$value);
    } else {
        $value = call_user_func($this->serializer[1], $value);
    }
    if (is_array($value) && !($value[1] instanceof Dependency && $value[1]->isChanged($this))) {
        return $value[0];
    }
    return false;
}

            

                public function getBehavior($name)
{
    $this->ensureBehaviors();
    return isset($this->_behaviors[$name]) ? $this->_behaviors[$name] : null;
}

            

                public function getBehaviors()
{
    $this->ensureBehaviors();
    return $this->_behaviors;
}

            

                public function getOrSet($key, $callable, $duration = null, $dependency = null)
{
    if (($value = $this->get($key)) !== false) {
        return $value;
    }
    $value = call_user_func($callable, $this);
    if (!$this->set($key, $value, $duration, $dependency)) {
        Yii::warning('Failed to set cache value for key ' . json_encode($key), __METHOD__);
    }
    return $value;
}

            

                public function hasEventHandlers($name)
{
    $this->ensureBehaviors();
    if (!empty($this->_events[$name])) {
        return true;
    }
    foreach ($this->_eventWildcards as $wildcard => $handlers) {
        if (!empty($handlers) && StringHelper::matchWildcard($wildcard, $name)) {
            return true;
        }
    }
    return Event::hasHandlers($this, $name);
}

            

                public function hasMethod($name, $checkBehaviors = true)
{
    if (method_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->hasMethod($name)) {
                return true;
            }
        }
    }
    return false;
}

            

                public function hasProperty($name, $checkVars = true, $checkBehaviors = true)
{
    return $this->canGetProperty($name, $checkVars, $checkBehaviors) || $this->canSetProperty($name, false, $checkBehaviors);
}

            

                public function madd($items, $duration = 0, $dependency = null)
{
    return $this->multiAdd($items, $duration, $dependency);
}

            

                public function mget($keys)
{
    return $this->multiGet($keys);
}

            

                public function mset($items, $duration = null, $dependency = null)
{
    return $this->multiSet($items, $duration, $dependency);
}

            

                public function multiAdd($items, $duration = 0, $dependency = null)
{
    $data = $this->prepareCacheData($items, $dependency);
    return $this->addValues($data, $duration);
}

            

                public function multiGet($keys)
{
    $keyMap = [];
    foreach ($keys as $key) {
        $keyMap[$key] = $this->buildKey($key);
    }
    $values = $this->getValues(array_values($keyMap));
    $results = [];
    foreach ($keyMap as $key => $newKey) {
        $results[$key] = false;
        if (isset($values[$newKey])) {
            if ($this->serializer === false) {
                $results[$key] = $values[$newKey];
            } else {
                $value = $this->serializer === null ? unserialize($values[$newKey])
                    : call_user_func($this->serializer[1], $values[$newKey]);
                if (is_array($value) && !($value[1] instanceof Dependency && $value[1]->isChanged($this))) {
                    $results[$key] = $value[0];
                }
            }
        }
    }
    return $results;
}

            

                public function multiSet($items, $duration = null, $dependency = null)
{
    if ($duration === null) {
        $duration = $this->defaultDuration;
    }
    $data = $this->prepareCacheData($items, $dependency);
    return $this->setValues($data, $duration);
}

            

                public function off($name, $handler = null)
{
    $this->ensureBehaviors();
    if (empty($this->_events[$name]) && empty($this->_eventWildcards[$name])) {
        return false;
    }
    if ($handler === null) {
        unset($this->_events[$name], $this->_eventWildcards[$name]);
        return true;
    }
    $removed = false;
    // plain event names
    if (isset($this->_events[$name])) {
        foreach ($this->_events[$name] as $i => $event) {
            if ($event[0] === $handler) {
                unset($this->_events[$name][$i]);
                $removed = true;
            }
        }
        if ($removed) {
            $this->_events[$name] = array_values($this->_events[$name]);
            return true;
        }
    }
    // wildcard event names
    if (isset($this->_eventWildcards[$name])) {
        foreach ($this->_eventWildcards[$name] as $i => $event) {
            if ($event[0] === $handler) {
                unset($this->_eventWildcards[$name][$i]);
                $removed = true;
            }
        }
        if ($removed) {
            $this->_eventWildcards[$name] = array_values($this->_eventWildcards[$name]);
            // remove empty wildcards to save future redundant regex checks:
            if (empty($this->_eventWildcards[$name])) {
                unset($this->_eventWildcards[$name]);
            }
        }
    }
    return $removed;
}

            

                #[\ReturnTypeWillChange]
public function offsetExists($key)
{
    return $this->get($key) !== false;
}

            

                #[\ReturnTypeWillChange]
public function offsetGet($key)
{
    return $this->get($key);
}

            

                #[\ReturnTypeWillChange]
public function offsetSet($key, $value)
{
    $this->set($key, $value);
}

            

                #[\ReturnTypeWillChange]
public function offsetUnset($key)
{
    $this->delete($key);
}

            

                public function on($name, $handler, $data = null, $append = true)
{
    $this->ensureBehaviors();
    if (strpos($name, '*') !== false) {
        if ($append || empty($this->_eventWildcards[$name])) {
            $this->_eventWildcards[$name][] = [$handler, $data];
        } else {
            array_unshift($this->_eventWildcards[$name], [$handler, $data]);
        }
        return;
    }
    if ($append || empty($this->_events[$name])) {
        $this->_events[$name][] = [$handler, $data];
    } else {
        array_unshift($this->_events[$name], [$handler, $data]);
    }
}

            

                public function set($key, $value, $duration = null, $dependency = null)
{
    if ($duration === null) {
        $duration = $this->defaultDuration;
    }
    if ($dependency !== null && $this->serializer !== false) {
        $dependency->evaluateDependency($this);
    }
    if ($this->serializer === null) {
        $value = serialize([$value, $dependency]);
    } elseif ($this->serializer !== false) {
        $value = call_user_func($this->serializer[0], [$value, $dependency]);
    }
    $key = $this->buildKey($key);
    return $this->setValue($key, $value, $duration);
}

            

                protected function setValues($data, $duration)
{
    $failedKeys = [];
    foreach ($data as $key => $value) {
        if ($this->setValue($key, $value, $duration) === false) {
            $failedKeys[] = $key;
        }
    }
    return $failedKeys;
}

            

                public function trigger($name, Event $event = null)
{
    $this->ensureBehaviors();
    $eventHandlers = [];
    foreach ($this->_eventWildcards as $wildcard => $handlers) {
        if (StringHelper::matchWildcard($wildcard, $name)) {
            $eventHandlers[] = $handlers;
        }
    }
    if (!empty($this->_events[$name])) {
        $eventHandlers[] = $this->_events[$name];
    }
    if (!empty($eventHandlers)) {
        $eventHandlers = call_user_func_array('array_merge', $eventHandlers);
        if ($event === null) {
            $event = new Event();
        }
        if ($event->sender === null) {
            $event->sender = $this;
        }
        $event->handled = false;
        $event->name = $name;
        foreach ($eventHandlers as $handler) {
            $event->data = $handler[1];
            call_user_func($handler[0], $event);
            // stop further handling if the event is handled
            if ($event->handled) {
                return;
            }
        }
    }
    // invoke class-level attached handlers
    Event::trigger($this, $name, $event);
}