Added AbstractSoapBuilder::withWsdlCache() method

src/BeSimple/SoapCommon/AbstractSoapBuilder.php

@@ -97,6 +97,17 @@ abstract class AbstractSoapBuilder
         return $this;
     }
 
+    public function withWsdlCache($cache)
+    {
+        if (!in_array($cache, Cache::getTypes())) {
+            throw new \InvalidArgument();
+        }
+
+        $this->soapOptions['cache_wsdl'] = $cache;
+
+        return $this;
+    }
+
     /**
      * @return AbstractSoapBuilder
      */

src/BeSimple/SoapCommon/Cache.php

@@ -59,7 +59,7 @@ class Cache
     static public function setType($type)
     {
         if (!in_array($type, self::getTypes())) {
-            throw new \InvalidArgumentException();
+            throw new \InvalidArgumentException('The cache type has to be either Cache::TYPE_NONE, Cache::TYPE_DISK, Cache::TYPE_MEMORY or Cache::TYPE_DISK_MEMORY');
         }
 
         self::iniSet('soap.wsdl_cache', $type);