returns a json string representation of this key which can be turned back into a key instance via key #fromjson erraientitymanager , string , boolean . concode_field_sep ErraiManagedType<X> entityType concode_elem_sep T id concode_field_sep JSONObject toJsonObject concode_elem_sep int hashCode concode_elem_sep Key<X,T> get concode_elem_sep boolean equals concode_elem_sep ErraiManagedType<X> getEntityType concode_elem_sep Key<?,?> fromJson concode_elem_sep T getId concode_elem_sep String toString concode_elem_sep Key<?,?> fromJsonObject
String function ( ) { return toJsonObject ( ) . toString ( ) ; }