public void setDeliveryMode ( Integer deliveryMode ) { if ( deliveryMode == null ) { _properties . remove ( AMQP_PROP_DELIVERY_MODE ) ; return ; } // Perhaps, we could do an enum for deliveryMode. But, it will require // some major changes in encoding and decoding and we don't have much // time to do it across all the clients. int value = deliveryMode . intValue ( ) ; if ( ( value != 1 ) && ( value != 2 ) ) { String s = "AMQP 0-9-1 spec mandates 'deliveryMode' value to be " + "either 1(for non-persistent) or 2(for persistent)" ; throw new IllegalStateException ( s ) ; } _properties . put ( AMQP_PROP_DELIVERY_MODE , deliveryMode ) ; }
Sets the value of deliveryMode property . If a null value is passed in it indicates that the property is not set .