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Type property example (Field) (VJ++)

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Applies to: Access 2013 | Access 2016

This example demonstrates the Type property by displaying the name of the constant that corresponds to the value of the Type property of all the Field objects in the Employees table. The FieldType function is required for this procedure to run.

// BeginFieldTypeJ 
import java.io.*; 
import com.ms.wfc.data.*; 
 
public class TypeFieldX 
{ 
 
 // The main entry point of the application. 
 
 public static void main (String[] args) 
 { 
 TypeFieldX(); 
 System.exit(0); 
 } 
 
 // TypeFieldX Function 
 static void TypeFieldX() 
 { 
 // Define ADO Objects. 
 Recordset rstEmployees = null; 
 Field fldLoop = null; 
 
 // Declarations. 
 String strCnn = "Provider='sqloledb';Data Source='MySqlServer';"+ 
 "Initial Catalog='Pubs';Integrated Security='SSPI';"; 
 int intLoop; 
 int intRecordCount = 0; 
 BufferedReader in = 
 new BufferedReader(new InputStreamReader(System.in)); 
 
 try 
 { 
 // Open the Recordset with data from Employees table. 
 rstEmployees = new Recordset(); 
 rstEmployees.open("employee", strCnn, 
 AdoEnums.CursorType.FORWARDONLY, AdoEnums.LockType.READONLY, 
 AdoEnums.CommandType.TABLE); 
 
 System.out.println("Fields in the Employees table:\n"); 
 
 // Enumerate fields collection of Employees table. 
 for(intLoop = 0;intLoop < 
 rstEmployees.getFields().getCount();intLoop++) 
 { 
 intRecordCount++; 
 // Loop needed for display of records 
 if((intRecordCount % 6)==0) 
 { 
 System.out.println("Press <Enter> to continue.."); 
 in.readLine(); 
 } 
 
 fldLoop = rstEmployees.getFields().getItem(intLoop); 
 System.out.println(" Name:" + fldLoop.getName() + "\n"+ 
 " Type:" + FieldType(fldLoop.getType()) + "\n"); 
 
 } 
 System.out.println("Press <Enter> to continue"); 
 in.readLine(); 
 } 
 catch(AdoException ae) 
 { 
 // Notify the user of any errors that result from ADO. 
 
 // As passing a Recordset, check for the null pointer first. 
 if(rstEmployees != null) 
 { 
 PrintProviderError(rstEmployees.getActiveConnection()); 
 } 
 else 
 { 
 System.out.println("Exception: " + ae.getMessage()); 
 } 
 } 
 // System read requires this catch. 
 catch(java.io.IOException je) 
 { 
 PrintIOError(je); 
 } 
 
 finally 
 { 
 // Cleanup objects before exit. 
 if (rstEmployees != null) 
 if (rstEmployees.getState() == 1) 
 rstEmployees.close(); 
 } 
 } 
 // FieldType Function 
 static String FieldType( int intType ) 
 { 
 String strLoop = null; 
 
 switch(intType) 
 { 
 case AdoEnums.DataType.CHAR: 
 strLoop = "adChar"; 
 break; 
 case AdoEnums.DataType.VARCHAR: 
 strLoop ="adVarChar"; 
 break; 
 case AdoEnums.DataType.SMALLINT: 
 strLoop = "adSmallInt"; 
 break; 
 case AdoEnums.DataType.UNSIGNEDTINYINT: 
 strLoop = "adUnsignedTinyInt" ; 
 break; 
 case AdoEnums.DataType.DBTIMESTAMP: 
 strLoop = "adDBTimeStamp"; 
 break; 
 default: 
 break; 
 } 
 
 return strLoop; 
 } 
 
 // PrintProviderError Function 
 static void PrintProviderError(Connection cnn1) 
 { 
 // Print Provider Errors from Connection Object. 
 // ErrItem is an item object in the Connections Errors Collection. 
 com.ms.wfc.data.Error ErrItem = null; 
 long nCount = 0; 
 int i = 0; 
 
 nCount = cnn1.getErrors().getCount(); 
 
 // If there are any errors in the collection, print them. 
 if ( nCount > 0) 
 { 
 // Collection ranges from 0 to nCount-1. 
 for ( i=0;i<nCount; i++) 
 { 
 ErrItem = cnn1.getErrors().getItem(i); 
 System.out.println("\t Error Number: " + ErrItem.getNumber() 
 + "\t" + ErrItem.getDescription()); 
 } 
 } 
 } 
 // PrintIOError Function 
 static void PrintIOError(java.io.IOException je) 
 { 
 System.out.println("Error: \n"); 
 System.out.println("\t Source: " + je.getClass() + "\n"); 
 System.out.println("\t Description: "+ je.getMessage() + "\n"); 
 } 
} 
// EndFieldTypeJ

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