Source Code Cross Referenced for PrivilegeInfo.java in  » Database-DBMS » db-derby-10.2 » org » apache » derby » impl » sql » execute » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » db derby 10.2 » org.apache.derby.impl.sql.execute 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        /*
02:
03:           Derby - Class org.apache.derby.impl.sql.execute.PrivilegeInfo
04:
05:           Licensed to the Apache Software Foundation (ASF) under one or more
06:           contributor license agreements.  See the NOTICE file distributed with
07:           this work for additional information regarding copyright ownership.
08:           The ASF licenses this file to you under the Apache License, Version 2.0
09:           (the "License"); you may not use this file except in compliance with
10:           the License.  You may obtain a copy of the License at
11:
12:        	  http://www.apache.org/licenses/LICENSE-2.0
13:
14:           Unless required by applicable law or agreed to in writing, software
15:           distributed under the License is distributed on an "AS IS" BASIS,
16:           WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17:           See the License for the specific language governing permissions and
18:           limitations under the License.
19:
20:         */
21:
22:        package org.apache.derby.impl.sql.execute;
23:
24:        import org.apache.derby.catalog.UUID;
25:        import org.apache.derby.iapi.sql.dictionary.TupleDescriptor;
26:        import org.apache.derby.iapi.sql.dictionary.SchemaDescriptor;
27:        import org.apache.derby.iapi.sql.dictionary.DataDictionary;
28:        import org.apache.derby.iapi.services.sanity.SanityManager;
29:        import org.apache.derby.iapi.sql.Activation;
30:        import org.apache.derby.iapi.reference.SQLState;
31:
32:        import org.apache.derby.iapi.error.StandardException;
33:
34:        import java.util.List;
35:
36:        public abstract class PrivilegeInfo {
37:
38:            /**
39:             *	This is the guts of the Execution-time logic for GRANT/REVOKE
40:             *
41:             * @param activation
42:             * @param grant true if grant, false if revoke
43:             * @param grantees a list of authorization ids (strings)
44:             *
45:             * @exception StandardException		Thrown on failure
46:             */
47:            abstract public void executeGrantRevoke(Activation activation,
48:                    boolean grant, List grantees) throws StandardException;
49:
50:            /**
51:             * Determines whether a user is the owner of an object
52:             * (table, function, or procedure). Note that Database Owner can access
53:             * database objects without needing to be their owner
54:             *
55:             * @param user					authorizationId of current user
56:             * @param objectDescriptor		object being checked against
57:             * @param sd					SchemaDescriptor
58:             * @param dd					DataDictionary
59:             *
60:             * @exception StandardException if user does not own the object
61:             */
62:            protected void checkOwnership(String user,
63:                    TupleDescriptor objectDescriptor, SchemaDescriptor sd,
64:                    DataDictionary dd) throws StandardException {
65:                if (!user.equals(sd.getAuthorizationId())
66:                        && !user.equals(dd.getAuthorizationDatabaseOwner()))
67:                    throw StandardException.newException(
68:                            SQLState.AUTH_NOT_OWNER, user, objectDescriptor
69:                                    .getDescriptorType(), sd.getSchemaName(),
70:                            objectDescriptor.getDescriptorName());
71:            }
72:
73:            /**
74:             * This method adds a warning if a revoke statement has not revoked 
75:             * any privileges from a grantee.
76:             * 
77:             * @param activation
78:             * @param grant true if grant, false if revoke
79:             * @param privileges_revoked true, if at least one privilege has been 
80:             * 							revoked from a grantee, false otherwise
81:             * @param grantee authorization id of the user
82:             */
83:            protected void addWarningIfPrivilegeNotRevoked(
84:                    Activation activation, boolean grant,
85:                    boolean privileges_revoked, String grantee) {
86:                if (!grant && !privileges_revoked)
87:                    activation.addWarning(StandardException.newWarning(
88:                            SQLState.LANG_PRIVILEGE_NOT_REVOKED, grantee));
89:            }
90:        }
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