Source Code Cross Referenced for WiscMetaData.java in  » Database-DBMS » db-derby-10.2 » org » apache » derbyTesting » functionTests » tests » lang » 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.derbyTesting.functionTests.tests.lang 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:
003:           Derby - Class org.apache.derbyTesting.functionTests.tests.lang.WiscMetaData
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.derbyTesting.functionTests.tests.lang;
023:
024:        import org.apache.derby.vti.VTIMetaDataTemplate;
025:
026:        import java.sql.Types;
027:        import java.sql.SQLException;
028:        import java.sql.ResultSetMetaData;
029:
030:        /**
031:         * This class gives the metadata for the VTI for loading the Wisconsin
032:         * benchmark schema.
033:         */
034:        class WiscMetaData extends VTIMetaDataTemplate {
035:
036:            public int getColumnCount() {
037:                return 16;
038:            }
039:
040:            public int getColumnType(int column) throws SQLException {
041:                switch (column) {
042:                case 1:
043:                case 2:
044:                case 3:
045:                case 4:
046:                case 5:
047:                case 6:
048:                case 7:
049:                case 8:
050:                case 9:
051:                case 10:
052:                case 11:
053:                case 12:
054:                case 13:
055:                    return Types.INTEGER;
056:
057:                case 14:
058:                case 15:
059:                case 16:
060:                    return Types.CHAR;
061:
062:                default:
063:                    throw new SQLException("Invalid column number " + column);
064:                }
065:            }
066:
067:            public int isNullable(int column) throws SQLException {
068:                if (column < 1 || column > 16) {
069:                    throw new SQLException("isNullable: column number "
070:                            + column + " out of range.");
071:                }
072:
073:                return ResultSetMetaData.columnNoNulls;
074:            }
075:
076:            public String getColumnName(int column) throws SQLException {
077:                switch (column) {
078:                case 1:
079:                    return "unique1";
080:
081:                case 2:
082:                    return "unique2";
083:
084:                case 3:
085:                    return "two";
086:
087:                case 4:
088:                    return "four";
089:
090:                case 5:
091:                    return "ten";
092:
093:                case 6:
094:                    return "twenty";
095:
096:                case 7:
097:                    return "onePercent";
098:
099:                case 8:
100:                    return "tenPercent";
101:
102:                case 9:
103:                    return "twentyPercent";
104:
105:                case 10:
106:                    return "fiftyPercent";
107:
108:                case 11:
109:                    return "unique3";
110:
111:                case 12:
112:                    return "evenOnePercent";
113:
114:                case 13:
115:                    return "oddOnePercent";
116:
117:                case 14:
118:                    return "stringu1";
119:
120:                case 15:
121:                    return "stringu2";
122:
123:                case 16:
124:                    return "string4";
125:                }
126:
127:                throw new SQLException("getColumnName: column number " + column
128:                        + " out of range.");
129:            }
130:
131:            public int getColumnDisplaySize(int column) throws SQLException {
132:                if (column < 1 || column > 16) {
133:                    throw new SQLException(
134:                            "getColumnDisplaySize: column number " + column
135:                                    + " out of range.");
136:                }
137:
138:                /* All columns up to 14 are ints, all columns after 14 are char(52) */
139:                if (column < 14)
140:                    return 10;
141:                else
142:                    return 52;
143:            }
144:        }
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