Source Code Cross Referenced for GrantNode.java in  » Database-DBMS » db-derby-10.2 » org » apache » derby » impl » sql » compile » 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.compile 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:
003:           Derby - Class org.apache.derby.impl.sql.compile.GrantNode
004:
005:           Licensed to the Apache Software Foundation (ASF) under one or more
006:           contributor license agreements.  See the NOTICE file distributed with
007:           this work for additional information regarding copyright ownership.
008:           The ASF licenses this file to you under the Apache License, Version 2.0
009:           (the "License"); you may not use this file except in compliance with
010:           the License.  You may obtain a copy of the License at
011:
012:        	  http://www.apache.org/licenses/LICENSE-2.0
013:
014:           Unless required by applicable law or agreed to in writing, software
015:           distributed under the License is distributed on an "AS IS" BASIS,
016:           WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
017:           See the License for the specific language governing permissions and
018:           limitations under the License.
019:
020:         */
021:
022:        package org.apache.derby.impl.sql.compile;
023:
024:        import org.apache.derby.iapi.sql.execute.ConstantAction;
025:        import org.apache.derby.impl.sql.execute.PrivilegeInfo;
026:        import org.apache.derby.iapi.services.sanity.SanityManager;
027:        import org.apache.derby.iapi.error.StandardException;
028:
029:        import java.util.HashMap;
030:        import java.util.Iterator;
031:        import java.util.List;
032:
033:        /**
034:         * This class represents a GRANT statement.
035:         */
036:        public class GrantNode extends DDLStatementNode {
037:            private PrivilegeNode privileges;
038:            private List grantees;
039:
040:            /**
041:             * Convert this object to a String.  See comments in QueryTreeNode.java
042:             * for how this should be done for tree printing.
043:             *
044:             * @return	This object as a String
045:             */
046:
047:            public String toString() {
048:                if (SanityManager.DEBUG) {
049:                    StringBuffer sb = new StringBuffer();
050:                    for (Iterator it = grantees.iterator(); it.hasNext();) {
051:                        if (sb.length() > 0)
052:                            sb.append(",");
053:                        sb.append(it.next().toString());
054:                    }
055:                    return super .toString() + privileges.toString() + "TO: \n"
056:                            + sb.toString() + "\n";
057:                } else {
058:                    return "";
059:                }
060:            } // end of toString
061:
062:            public String statementToString() {
063:                return "GRANT";
064:            }
065:
066:            /**
067:             * Initialize a GrantNode.
068:             *
069:             * @param privileges PrivilegesNode
070:             * @param grantees List
071:             */
072:            public void init(Object privileges, Object grantees) {
073:                this .privileges = (PrivilegeNode) privileges;
074:                this .grantees = (List) grantees;
075:            }
076:
077:            /**
078:             * Bind this GrantNode. Resolve all table, column, and routine references.
079:             *
080:             * @return the bound GrantNode
081:             *
082:             * @exception StandardException	Standard error policy.
083:             */
084:            public QueryTreeNode bind() throws StandardException {
085:                privileges = (PrivilegeNode) privileges.bind(new HashMap(),
086:                        grantees, true);
087:                return this ;
088:            } // end of bind
089:
090:            /**
091:             * Create the Constant information that will drive the guts of Execution.
092:             *
093:             * @exception StandardException	Standard error policy.
094:             */
095:            public ConstantAction makeConstantAction() throws StandardException {
096:                return getGenericConstantActionFactory()
097:                        .getGrantConstantAction(privileges.makePrivilegeInfo(),
098:                                grantees);
099:            }
100:        }
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