import com.sun.jmx.snmp.SnmpUnknownAccContrModelException; //导入依赖的package包/类
/**
 * Method called by the dispatcher in order to control the access at an SNMP pdu Level.
 * <P> This call is routed by the sub system to the target model according to the SNMP protocol version number.</P>
 * @param version The SNMP protocol version number.
 * @param principal The request principal.
 * @param securityLevel The request security level as defined in <CODE>SnmpEngine</CODE>.
 * @param pduType The pdu type (get, set, ...).
 * @param securityModel The security model ID.
 * @param contextName The access control context name.
 * @param pdu The pdu to check.
 */
public void checkPduAccess(int version,
                           String principal,
                           int securityLevel,
                           int pduType,
                           int securityModel,
                           byte[] contextName,
                           SnmpPdu pdu) throws SnmpStatusException, SnmpUnknownAccContrModelException;
 

import com.sun.jmx.snmp.SnmpUnknownAccContrModelException; //导入依赖的package包/类
/**
 * Method called by the dispatcher in order to control the access at an <CODE>SnmpOid</CODE> Level.
 * This method is called after the <CODE>checkPduAccess</CODE> pdu based method.
 * <P> This call is routed by the sub system to the target model according to the SNMP protocol version number.</P>
 * @param version The SNMP protocol version number.
 * @param principal The request principal.
 * @param securityLevel The request security level as defined in <CODE>SnmpEngine</CODE>.
 * @param pduType The pdu type (get, set, ...).
 * @param securityModel The security model ID.
 * @param contextName The access control context name.
 * @param oid The OID to check.
 */
public void checkAccess(int version,
                        String principal,
                        int securityLevel,
                        int pduType,
                        int securityModel,
                        byte[] contextName,
                        SnmpOid oid) throws SnmpStatusException, SnmpUnknownAccContrModelException;