JDBC Developer's Guide - Supra - Cincom

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insertValue(Object javaObj, int JDBCtype, int index)The insertValue(Object javaObj, int JDBCtype, int index) inserts the valuecontained in javaObj of type JDBCType into the collection at location index.The value is always inserted at the position given. If the index is beyond thesize of the collection, null elements will be inserted to fill in the “holes”. Ifthere is a value in the index position, all values from the current index positionwill be shifted right one position to make room for the new value. The size ofthe collection will increase by one or more elements.removeNulls()The removeNulls() method will delete null elements from the collection. Thisincludes values that are null as well as object references that point to deletedreferences. The size of the collection may decrease.The following example shows the use of these methods and can found in the%ORDB%\demo\jdbc\samples\collectionSample4.java file:package demo.jdbc.samples;import java.sql.*;import java.math.*;import java.io.*;import ordbjava.jdbc.*;import java.util.HashMap;//import for custom mappingclass collectionSample4{public static void main (String args []) throws SQLException{// Connect to the demodb database without autocommit enabled.Connection conn = demodbHelper.makeConnection (false);// Create a new collection leaving some "holes"ordbCollection newActivities = new ordbCollection(conn);String activity = "Activity 1";newActivities.insertValue(activity,Types.VARCHAR,1);activity = "Activity 3";newActivities.insertValue(activity,Types.VARCHAR,3);activity = "Activity 5";newActivities.insertValue(activity,Types.VARCHAR,5);JDBC Developer's Guide, P25-9504-03 Page 70Chapter: 4. Cincom ORDB ExtensionsSection: Working with Cincom ORDB collections
display the size and contents of the collectionSystem.out.println("Size before remove nulls: " +newActivities.getSize());ResultSet rs=newActivities.getResultSet();while (rs.next())System.out.println("Collection element " + rs.getInt(1) +" value: " + rs.getString(2));rs.close();// Use removeNulls method to delete "holes", then// display contents (using Array instead of// resultSet this time just for example)newActivities.removeNulls();System.out.println("Size after remove nulls: " +newActivities.getSize());Object [] vals = (Object [])newActivities.getArray();int elem = 0;for (elem = 0; elem < vals.length; elem++)System.out.println("Array element " + elem + " value: " +(String)vals[elem]);// Delete the first element and display size & contentsnewActivities.deleteValue(1);System.out.println("Size after delete element: " +newActivities.getSize());rs = newActivities.getResultSet();while (rs.next())System.out.println("Collection element " + rs.getInt(1) +" value: " + rs.getString(2));rs.close();JDBC Developer's Guide, P25-9504-03 Page 71Chapter: 4. Cincom ORDB ExtensionsSection: Working with Cincom ORDB collections
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SQL ACCESS FOR SUPRASERVER PDM ®JD
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Contents1. Overview ...............
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6. Coding tips and troubleshooting
Page 8 and 9:
What is JDBC?JDBC (Java Database Co
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Cincom ORDB extensions to the JDBC
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Checking installed directories and
Page 15 and 16:
Testing JDBC and the database conne
Page 17 and 18:
System.out.println ("Please enter i
Page 19 and 20: 3. Basic FeaturesIntroductionThis c
Page 21 and 22: Step 2: Open a connection to a data
Page 23: Step 5: Process the ResultSet objec
Page 26 and 27: Cincom ORDB JDBC extension typesAlt
Page 28 and 29: 4. Cincom ORDB ExtensionsIntroducti
Page 30 and 31: Class ordbGloThe ordbjava.jdbc.ordb
Page 32 and 33: prepare a statement that has an inp
Page 34 and 35: get the first resort referenceordbj
Page 36 and 37: Invoking database methodsYou can us
Page 38 and 39: Creating custom Java classes for Ci
Page 40 and 41: Annotated examples of custom mapped
Page 42 and 43: The above constructor can be used b
Page 44 and 45: class jaccommodations.javaThe follo
Page 46 and 47: public void readSQL(SQLInput stream
Page 48 and 49: Relating Java classes to database c
Page 50 and 51: Controlling when custom mapping occ
Page 52 and 53: Using the getAttributes method of t
Page 54 and 55: 13 activities// 14 sounds_of_the_ca
Page 56 and 57: }Statement stmt = conn.createStatem
Page 58 and 59: In the previous example, the applic
Page 60 and 61: ♦writeSQL() method. You must impl
Page 62 and 63: Retrieving a collection and its ele
Page 64 and 65: while (rset.next()) {// activities
Page 66 and 67: ordbCollection rooms = null;while (
Page 68 and 69: public static void main (String arg
Page 72 and 73: Example using the Array as input pa
Page 74 and 75: create a new collection of seashore
Page 76 and 77: 5. Cincom ORDB JDBC NotesIntroducti
Page 78 and 79: ConnectionThe database does not sup
Page 80 and 81: PreparedStatementCincom ORDB JDBC D
Page 82 and 83: Cincom ORDB JDBC Driver does not su
Page 84 and 85: SQLOutputThe Cincom ORDB JDBC Drive
Page 86 and 87: JDBC and multi-threadingThe Cincom
Page 88 and 89: Example: Disabling AutoCommit. The
Page 90 and 91: setConnectPoolTimeout(long millisec
Page 92 and 93: Logging JDBC callsThe Cincom ORDB J
Page 94 and 95: Accessing JDBC samplesUse one of th
Page 96 and 97: IndexAaccesing attribute values,exa
Page 98: RResultSet objectclosing 23processi
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