Return true for all methods of  NullEngine which return boolean.
Return true for all methods of  NullEngine which return boolean.

Return integer for inrement() and decrement() methods.

ndm2/cakephp,ndm2/cakephp,ADmad/cakephp,CakeDC/cakephp,cakephp/cakephp,ADmad/cakephp,dakota/cakephp,CakeDC/cakephp,CakeDC/cakephp,ADmad/cakephp,dakota/cakephp,cakephp/cakephp,cakephp/cakephp,cakephp/cakephp,ndm2/cakephp,dakota/cakephp,ndm2/cakephp,dakota/cakephp,CakeDC/cakephp,ADmad/cakephp