// CPut conditionally sets the value for a key if the existing value is equal
// to expValue. To conditionally set a value only if there is no existing entry
// pass nil for expValue.
//
// A new result will be appended to the batch which will contain a single row
// and Result.Err will indicate success or failure.
//
// key can be either a byte slice, a string, a fmt.Stringer or an
// encoding.BinaryMarshaler. value can be any key type or a proto.Message.
func (b *Batch) CPut(key, value, expValue interface{}) {
k, err := marshalKey(key)
if err != nil {
b.initResult(0, 1, err)
return
}
v, err := marshalValue(reflect.ValueOf(value))
if err != nil {
b.initResult(0, 1, err)
return
}
ev, err := marshalValue(reflect.ValueOf(expValue))
if err != nil {
b.initResult(0, 1, err)
return
}
b.calls = append(b.calls, proto.ConditionalPutCall(proto.Key(k), v.Bytes, ev.Bytes))
b.initResult(1, 1, nil)
}
// CPut conditionally sets the value for a key if the existing value is equal
// to expValue. To conditionally set a value only if there is no existing entry
// pass nil for expValue.
//
// A new result will be appended to the batch which will contain a single row
// and Result.Err will indicate success or failure.
//
// key can be either a byte slice or a string. value can be any key type, a
// proto.Message or any Go primitive type (bool, int, etc).
func (b *Batch) CPut(key, value, expValue interface{}) {
k, err := marshalKey(key)
if err != nil {
b.initResult(0, 1, err)
return
}
v, err := marshalValue(value)
if err != nil {
b.initResult(0, 1, err)
return
}
ev, err := marshalValue(expValue)
if err != nil {
b.initResult(0, 1, err)
return
}
b.calls = append(b.calls, proto.ConditionalPutCall(k, v, ev))
b.initResult(1, 1, nil)
}