src/jdbc/JdbcSqlResultSetMetaData.java

   1
   2 package csql.jdbc;
   3
   4 import java.sql.SQLException;
   5 import java.sql.ResultSetMetaData;
   6
   7
   8 public final class JdbcSqlResultSetMetaData
   9 extends JSqlError implements ResultSetMetaData, JSqlErrorType
  10 {
  11     private boolean isClosed;
  12     JdbcSqlStatement stmt; // This guy creates me
  13
  14     JdbcSqlResultSetMetaData()
  15     {
  16         isClosed = false;
  17     }
  18     void setStmt( JdbcSqlStatement s )
  19     {
  20         stmt = s;
  21         isClosed = false;
  22     }
  23
  24     public void close() throws SQLException
  25     {
  26         if( ! isClosed )
  27             isClosed = true;
  28         return;
  29     }
  30
  31     public int getColumnCount () throws SQLException
  32     {
  33         if( isClosed ) throw getException( CSQL_INVALID_STATE );
  34         return( stmt.jniStmt.getTotalProjFld() );
  35     }
  36     public int getColumnIndex (String name) throws SQLException
  37     {
  38         if( isClosed ) throw getException( CSQL_INVALID_STATE );
  39         return( stmt.jniStmt.findColumn( name ) );//TO DO
  40     }
  41
  42     public String getColumnName (int colNum) throws SQLException
  43     {
  44         if( isClosed ) throw getException( CSQL_INVALID_STATE );
  45
  46         String name= stmt.jniStmt.getProjFldName(colNum);
  47         return( name );
  48     }
  49     public String getColumnLabel (int colNum) throws SQLException
  50     {
  51         return getColumnName( colNum );
  52     }
  53
  54     public boolean isReadOnly (int colNum) throws SQLException
  55     {
  56         if( isClosed ) throw getException( CSQL_INVALID_STATE );
  57         return( false );
  58     }
  59     public boolean isWritable (int colNum) throws SQLException
  60     {
  61         if( isClosed ) throw getException( CSQL_INVALID_STATE );
  62         return( true );
  63     }
  64     public boolean isDefinitelyWritable (int colNum) throws SQLException
  65     {
  66         if( isClosed ) throw getException( CSQL_INVALID_STATE );
  67         return( true );
  68     }
  69
  70
  71     public String getColumnClassName(int colNum) throws SQLException
  72     {
  73         if( isClosed ) throw getException( CSQL_INVALID_STATE );
  74         return Util.getClassName(this.stmt.jniStmt.getProjFldType(colNum));
  75     }
  76
  77     public int getColumnType (int colNum) throws SQLException
  78     {
  79         if( isClosed ) throw getException( CSQL_INVALID_STATE );
  80         return Util.getType(this.stmt.jniStmt.getProjFldType(colNum));
  81     }
  82     public String getColumnTypeName (int colNum) throws SQLException
  83     {
  84         if( isClosed ) throw getException( CSQL_INVALID_STATE );
  85         return Util.getTypeName(this.stmt.jniStmt.getProjFldType(colNum));
  86     }
  87     public boolean isCaseSensitive (int colNum) throws SQLException
  88     {
  89         if( isClosed ) throw getException( CSQL_INVALID_STATE );
  90         return( false );
  91     }
  92
  93     public int isNullable (int colNum) throws SQLException
  94     {
  95         if( isClosed ) throw getException( CSQL_INVALID_STATE );
  96         if (this.stmt.jniStmt.isFldNullable(colNum))
  97             return JdbcSqlResultSetMetaData.columnNoNulls ;
  98         else
  99             return JdbcSqlResultSetMetaData.columnNullable ;
 100     }
 101
 102     public String getTableName (int colNum) throws SQLException
 103     {
 104         if( isClosed ) throw getException( CSQL_INVALID_STATE );
 105         return( null );
 106     }
 107     public boolean isSigned (int colNum) throws SQLException
 108     {
 109         if( isClosed ) throw getException( CSQL_INVALID_STATE );
 110         throw getException( CSQL_NOT_SUPPORTED );
 111     }
 112     public int getPrecision (int colNum) throws SQLException //TODO
 113     {
 114         if( isClosed ) throw getException( CSQL_INVALID_STATE );
 115         throw getException( CSQL_NOT_SUPPORTED );
 116     }
 117     public int getScale (int colNum) throws SQLException //TODO
 118     {
 119         if( isClosed ) throw getException( CSQL_INVALID_STATE );
 120         throw getException( CSQL_NOT_SUPPORTED );
 121     }
 122     public String getSchemaName (int colNum) throws SQLException
 123     {
 124         return( null );
 125     }
 126
 127
 128     // UN-SUPPORTED API's
 129     public int getColumnDisplaySize (int colNum) throws SQLException
 130     {
 131         return( 1 );
 132     }
 133     public boolean isAutoIncrement (int colNum) throws SQLException
 134     {
 135         return( false );
 136     }
 137     public boolean isCurrency (int colNum) throws SQLException
 138     {
 139         return( true );
 140     }
 141     public String getCatalogName (int colNum) throws SQLException
 142     {
 143         return( null );
 144     }
 145     public boolean isSearchable (int colNum) throws SQLException
 146     {
 147         return( true );
 148     }
 149     //java 1.6 methods
 150     public boolean isWrapperFor(Class ifact) throws SQLException
 151     {
 152         throw getException(CSQL_NOT_SUPPORTED);
 153     }
 154     public Class unwrap(Class iface) throws SQLException
 155     {
 156         throw getException(CSQL_NOT_SUPPORTED);
 157     }
 158
 159 }