vortex.sql
Class vortexMetaResult

java.lang.Object
  |
  +--vortex.sql.vortexMetaResult

All Implemented Interfaces:

java.sql.ResultSetMetaData

public class vortexMetaResult

extends java.lang.Object

implements java.sql.ResultSetMetaData

This class provides the implementation of the JDBC ResultSetMetaData interface.

See Also:

ResultSetMetaData

Field Summary

Fields inherited from interface java.sql.ResultSetMetaData

columnNoNulls, columnNullable, columnNullableUnknown

Constructor Summary

vortexMetaResult(vortexRecord rd)
Constructs a new instance of the vortexMetaResult class

Method Summary

java.lang.String	getCatalogName(int column) Not supported by VORTEXjdbc.
java.lang.String	getColumnClassName(int column) Not supported by VORTEXjdbc.
int	getColumnCount() Returns the number of columns in this result set.
int	getColumnDisplaySize(int column) Gives the display size for this column.
java.lang.String	getColumnLabel(int column) This returns column_name.
java.lang.String	getColumnName(int column) The name of the requested column.
int	getColumnType(int column) Gives the column type using the types in java.sql.Types.
java.lang.String	getColumnTypeName(int column) Gives the column type as a string.
int	getPrecision(int column) Returning the precision
int	getScale(int column) Returning the scale
java.lang.String	getSchemaName(int column) Not supported by VORTEXjdbc.
java.lang.String	getTableName(int column) Gives the name of the table to which this column belongs.
boolean	isAutoIncrement(int column) Is the column automatically numbered, thus read-only?
boolean	isCaseSensitive(int column) Does a column's case matter?
boolean	isCurrency(int column) Is the column a cash value?
boolean	isDefinitelyWritable(int column) Will a write on the column definitely succeed?
int	isNullable(int column) Determines if the column in question is nullable.
boolean	isReadOnly(int column) Is a column definitely not writable?
boolean	isSearchable(int column) Can the column be used in a where clause?
boolean	isSigned(int column) Since all VORTEXjdbc integer types are signed, this returns true.
boolean	isWritable(int column) Is it possible for a write on the column to succeed?

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

vortexMetaResult

public vortexMetaResult(vortexRecord rd)

Constructs a new instance of the vortexMetaResult class

Parameters:

rd - the vortexRecord object

Method Detail

getColumnCount

public int getColumnCount()
                   throws java.sql.SQLException

Returns the number of columns in this result set.

Specified by:

getColumnCount in interface java.sql.ResultSetMetaData

Returns:

number of columns

Throws:

java.sql.SQLException - do nothing

See Also:

ResultSetMetaData.getColumnCount()

isAutoIncrement

public boolean isAutoIncrement(int column)
                        throws java.sql.SQLException

Is the column automatically numbered, thus read-only?

Specified by:

isAutoIncrement in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

false

Throws:

java.sql.SQLException - thrown if the column is out of range

See Also:

ResultSetMetaData.isAutoIncrement(int)

isCaseSensitive

public boolean isCaseSensitive(int column)
                        throws java.sql.SQLException

Does a column's case matter?

Specified by:

isCaseSensitive in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

true, meaning is case sensitive

Throws:

java.sql.SQLException - thrown if the column is out of range

See Also:

ResultSetMetaData.isCaseSensitive(int)

isSearchable

public boolean isSearchable(int column)
                     throws java.sql.SQLException

Can the column be used in a where clause?

Specified by:

isSearchable in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

true

Throws:

java.sql.SQLException - thrown if the column is out of range

See Also:

ResultSetMetaData.isSearchable(int)

isCurrency

public boolean isCurrency(int column)
                   throws java.sql.SQLException

Is the column a cash value?

Specified by:

isCurrency in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

false

Throws:

java.sql.SQLException - thrown if the column is out of range

See Also:

ResultSetMetaData.isCurrency(int)

isNullable

public int isNullable(int column)
               throws java.sql.SQLException

Determines if the column in question is nullable.

Specified by:

isNullable in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

columnNullable if the column can accept null values, otherwise columnNoNulls

Throws:

java.sql.SQLException - thrown if the column is out of range

See Also:

ResultSetMetaData.isNullable(int)

isSigned

public boolean isSigned(int column)
                 throws java.sql.SQLException

Since all VORTEXjdbc integer types are signed, this returns true.

Specified by:

isSigned in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

true

Throws:

java.sql.SQLException - thrown if the column is out of range

See Also:

ResultSetMetaData.isSigned(int)

getColumnDisplaySize

public int getColumnDisplaySize(int column)
                         throws java.sql.SQLException

Gives the display size for this column.

Specified by:

getColumnDisplaySize in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

the length of display size

Throws:

java.sql.SQLException - thrown if the column is out of range

See Also:

ResultSetMetaData.getColumnDisplaySize(int)

getColumnLabel

public java.lang.String getColumnLabel(int column)
                                throws java.sql.SQLException

This returns column_name.

Specified by:

getColumnLabel in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

the display value for the field

Throws:

java.sql.SQLException - thrown if the column is out of range

See Also:

ResultSetMetaData.getColumnLabel(int)

getColumnName

public java.lang.String getColumnName(int column)
                               throws java.sql.SQLException

The name of the requested column.

Specified by:

getColumnName in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

the name of the requested column

Throws:

java.sql.SQLException - thrown when the column desired is bad

See Also:

ResultSetMetaData.getColumnName(int)

getSchemaName

public java.lang.String getSchemaName(int column)
                               throws java.sql.SQLException

Not supported by VORTEXjdbc.

Specified by:

getSchemaName in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

the schema name of the requested column

Throws:

java.sql.SQLException - thrown if the column is out of range

getPrecision

public int getPrecision(int column)
                 throws java.sql.SQLException

Returning the precision

Specified by:

getPrecision in interface java.sql.ResultSetMetaData

Parameters:

column - the column of the field this information is needed for

Returns:

the precision of the column

Throws:

java.sql.SQLException - thrown if the column is out of range

getScale

public int getScale(int column)
             throws java.sql.SQLException

Returning the scale

Specified by:

getScale in interface java.sql.ResultSetMetaData

Parameters:

column - the column of the field this information is needed for

Returns:

the scale of the column

Throws:

java.sql.SQLException - thrown if the column is out of range

getTableName

public java.lang.String getTableName(int column)
                              throws java.sql.SQLException

Gives the name of the table to which this column belongs.

Specified by:

getTableName in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

the table name or "" if not applicable

Throws:

java.sql.SQLException - thrown if the column is out of range

See Also:

ResultSetMetaData.getTableName(int)

getCatalogName

public java.lang.String getCatalogName(int column)
                                throws java.sql.SQLException

Not supported by VORTEXjdbc.

Specified by:

getCatalogName in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

the catalog name

Throws:

java.sql.SQLException - thrown Not support

getColumnType

public int getColumnType(int column)
                  throws java.sql.SQLException

Gives the column type using the types in java.sql.Types.

Specified by:

getColumnType in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

the type as listed in java.sql.Types

Throws:

java.sql.SQLException - thrown for any number of reasons

See Also:

Types, ResultSetMetaData.getColumnType(int)

getColumnTypeName

public java.lang.String getColumnTypeName(int column)
                                   throws java.sql.SQLException

Gives the column type as a string.

Specified by:

getColumnTypeName in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

the name of the column type

Throws:

java.sql.SQLException - thrown if column oit of range

See Also:

ResultSetMetaData.getColumnTypeName(int)

getColumnClassName

public java.lang.String getColumnClassName(int column)
                                    throws java.sql.SQLException

Not supported by VORTEXjdbc. Returns the fully-qualified name of the Java class whose instances are manufactured if the method ResultSet.getObject is called to retrieve a value from the column. ResultSet.getObject may return a subclass of the class returned by this method.

Specified by:

getColumnClassName in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

the fully-qualified name

Throws:

java.sql.SQLException - thrown if the column is out of range

isReadOnly

public boolean isReadOnly(int column)
                   throws java.sql.SQLException

Is a column definitely not writable?

Specified by:

isReadOnly in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

false always

Throws:

java.sql.SQLException - thrown if the column is out of range

isWritable

public boolean isWritable(int column)
                   throws java.sql.SQLException

Is it possible for a write on the column to succeed?

Specified by:

isWritable in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

true always

Throws:

java.sql.SQLException - thrown if the column is out of range

isDefinitelyWritable

public boolean isDefinitelyWritable(int column)
                             throws java.sql.SQLException

Will a write on the column definitely succeed?

Specified by:

isDefinitelyWritable in interface java.sql.ResultSetMetaData

Parameters:

column - the column index

Returns:

true always

Throws:

java.sql.SQLException - thrown if the column is out of range