Package SQLite.JDBC2z

Class JDBCResultSetMetaData

java.lang.Object

SQLite.JDBC2z.JDBCResultSetMetaData

All Implemented Interfaces:

ResultSetMetaData, Wrapper

public class JDBCResultSetMetaData
extends Object
implements ResultSetMetaData

Field Summary

Fields inherited from interface java.sql.ResultSetMetaData

columnNoNulls, columnNullable, columnNullableUnknown

Constructor Summary

Constructors

Constructor	Description
JDBCResultSetMetaData(JDBCResultSet r)

Method Summary

Modifier and Type	Method	Description
String	getCatalogName(int column)	Returns the title of an indexed column's catalog.
String	getColumnClassName(int column)	Returns the fully-qualified type of the class that is produced when invoking ResultSet.getObject to recover this column's value.
int	getColumnCount()	Returns number of columns contained in the associated result set.
int	getColumnDisplaySize(int column)	Returns the indexed column's standard maximum width, expressed in number of characters.
String	getColumnLabel(int column)	Returns a recommended title for the indexed column, to be used when the title needs to be displayed.
String	getColumnName(int column)	Returns the title of the indexed column.
int	getColumnType(int column)	Returns the type of the indexed column as SQL type code.
String	getColumnTypeName(int column)	Returns the type name of the indexed column.
int	getPrecision(int column)	Returns the decimal precision of the indexed column.
int	getScale(int column)	Returns the number of digits to the right of the decimal point of the indexed column.
String	getSchemaName(int column)	Returns the name of the indexed columns schema.
String	getTableName(int column)	Returns the title of the indexed columns table.
boolean	isAutoIncrement(int column)	Returns an indication of whether the indexed column is automatically incremented and is therefore read-only.
boolean	isCaseSensitive(int column)	Returns an indication of whether the case of the indexed column is important.
boolean	isCurrency(int column)	Returns whether the indexed column contains a monetary amount.
boolean	isDefinitelyWritable(int column)	Returns an indication of whether writing to the indexed column is guaranteed to be successful.
int	isNullable(int column)	Returns whether the indexed column is nullable.
boolean	isReadOnly(int column)	Returns an indication of whether writing to the indexed column is guaranteed to be unsuccessful.
boolean	isSearchable(int column)	Returns an indication of whether the indexed column is searchable.
boolean	isSigned(int column)	Returns an indication of whether the values contained in the indexed column are signed.
boolean	isWrapperFor(Class iface)	If the caller is a wrapper of the class or implements the given interface, the methods return false and vice versa.
boolean	isWritable(int column)	Returns an indication of whether writing to the indexed column is possible.
<T> T	unwrap(Class<T> iface)	Returns an object that implements the given interface.

Methods inherited from class java.lang.Object

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

Constructor Detail

JDBCResultSetMetaData

public JDBCResultSetMetaData(JDBCResultSet r)

Method Detail

getCatalogName

public String getCatalogName(int column)
                      throws SQLException

Description copied from interface: ResultSetMetaData

Returns the title of an indexed column's catalog.

Specified by:

getCatalogName in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

the catalog title.

Throws:

SQLException - if there is a database error.

getColumnClassName

public String getColumnClassName(int column)
                          throws SQLException

Description copied from interface: ResultSetMetaData

Returns the fully-qualified type of the class that is produced when invoking ResultSet.getObject to recover this column's value.

Specified by:

getColumnClassName in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

the fully-qualified class name.

Throws:

SQLException - if there is a database error.

See Also:

ResultSet.getObject(int)

getColumnCount

public int getColumnCount()
                   throws SQLException

Description copied from interface: ResultSetMetaData

Returns number of columns contained in the associated result set.

Specified by:

getColumnCount in interface ResultSetMetaData

Returns:

the column count.

Throws:

SQLException - if there is a database error.

getColumnDisplaySize

public int getColumnDisplaySize(int column)
                         throws SQLException

Description copied from interface: ResultSetMetaData

Returns the indexed column's standard maximum width, expressed in number of characters.

Specified by:

getColumnDisplaySize in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

the column's max width.

Throws:

SQLException - if there is a database error.

getColumnLabel

public String getColumnLabel(int column)
                      throws SQLException

Description copied from interface: ResultSetMetaData

Returns a recommended title for the indexed column, to be used when the title needs to be displayed.

Specified by:

getColumnLabel in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

the column's title.

Throws:

SQLException - if there is a database error.

getColumnName

public String getColumnName(int column)
                     throws SQLException

Description copied from interface: ResultSetMetaData

Returns the title of the indexed column.

Specified by:

getColumnName in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

the column title.

Throws:

SQLException - if there is a database error.

getColumnType

public int getColumnType(int column)
                  throws SQLException

Description copied from interface: ResultSetMetaData

Returns the type of the indexed column as SQL type code.

Specified by:

getColumnType in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

the column type code.

Throws:

SQLException - if there is a database error.

See Also:

Types

getColumnTypeName

public String getColumnTypeName(int column)
                         throws SQLException

Description copied from interface: ResultSetMetaData

Returns the type name of the indexed column.

Specified by:

getColumnTypeName in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

the type name.

Throws:

SQLException - if there is a database error.

getPrecision

public int getPrecision(int column)
                 throws SQLException

Description copied from interface: ResultSetMetaData

Returns the decimal precision of the indexed column.

Specified by:

getPrecision in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

the precision.

Throws:

SQLException - if there is a database error.

getScale

public int getScale(int column)
             throws SQLException

Description copied from interface: ResultSetMetaData

Returns the number of digits to the right of the decimal point of the indexed column.

Specified by:

getScale in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

number of decimal places.

Throws:

SQLException - if there is a database error.

getSchemaName

public String getSchemaName(int column)
                     throws SQLException

Description copied from interface: ResultSetMetaData

Returns the name of the indexed columns schema.

Specified by:

getSchemaName in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

the name of the columns schema.

Throws:

SQLException - if there is a database error.

getTableName

public String getTableName(int column)
                    throws SQLException

Description copied from interface: ResultSetMetaData

Returns the title of the indexed columns table.

Specified by:

getTableName in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

the table title.

Throws:

SQLException - if there is a database error.

isAutoIncrement

public boolean isAutoIncrement(int column)
                        throws SQLException

Description copied from interface: ResultSetMetaData

Returns an indication of whether the indexed column is automatically incremented and is therefore read-only.

Specified by:

isAutoIncrement in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

true if it is automatically numbered, false otherwise.

Throws:

SQLException - if there is a database error.

isCaseSensitive

public boolean isCaseSensitive(int column)
                        throws SQLException

Description copied from interface: ResultSetMetaData

Returns an indication of whether the case of the indexed column is important.

Specified by:

isCaseSensitive in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

true if case matters, false otherwise.

Throws:

SQLException - if there is a database error.

isCurrency

public boolean isCurrency(int column)
                   throws SQLException

Description copied from interface: ResultSetMetaData

Returns whether the indexed column contains a monetary amount.

Specified by:

isCurrency in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

true if it is a monetary value, false otherwise.

Throws:

SQLException - if there is a database error.

isDefinitelyWritable

public boolean isDefinitelyWritable(int column)
                             throws SQLException

Description copied from interface: ResultSetMetaData

Returns an indication of whether writing to the indexed column is guaranteed to be successful.

Specified by:

isDefinitelyWritable in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

true if the write is guaranteed, false otherwise.

Throws:

SQLException - if there is a database error.

isNullable

public int isNullable(int column)
               throws SQLException

Description copied from interface: ResultSetMetaData

Returns whether the indexed column is nullable.

Specified by:

isNullable in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

true if it is nullable, false otherwise.

Throws:

SQLException - if there is a database error.

isReadOnly

public boolean isReadOnly(int column)
                   throws SQLException

Description copied from interface: ResultSetMetaData

Returns an indication of whether writing to the indexed column is guaranteed to be unsuccessful.

Specified by:

isReadOnly in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

true if the column is read-only, false otherwise.

Throws:

SQLException - if there is a database error.

isSearchable

public boolean isSearchable(int column)
                     throws SQLException

Description copied from interface: ResultSetMetaData

Returns an indication of whether the indexed column is searchable.

Specified by:

isSearchable in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

true if the indexed column is searchable, false otherwise.

Throws:

SQLException - if there is a database error.

isSigned

public boolean isSigned(int column)
                 throws SQLException

Description copied from interface: ResultSetMetaData

Returns an indication of whether the values contained in the indexed column are signed.

Specified by:

isSigned in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

true if they are signed, false otherwise.

Throws:

SQLException - if there is a database error.

isWritable

public boolean isWritable(int column)
                   throws SQLException

Description copied from interface: ResultSetMetaData

Returns an indication of whether writing to the indexed column is possible.

Specified by:

isWritable in interface ResultSetMetaData

Parameters:

column - the column index, starting at 1.

Returns:

true if it is possible to write, false otherwise.

Throws:

SQLException - if there is a database error.

unwrap

public <T> T unwrap(Class<T> iface)
             throws SQLException

Description copied from interface: Wrapper

Returns an object that implements the given interface. If the caller is not a wrapper, a SQLException will be thrown.

Specified by:

unwrap in interface Wrapper

Parameters:

iface - - the class that defines the interface

Returns:

- an object that implements the interface

Throws:

SQLException - - if there is no object implementing the specific interface

isWrapperFor

public boolean isWrapperFor(Class iface)
                     throws SQLException

Description copied from interface: Wrapper

If the caller is a wrapper of the class or implements the given interface, the methods return false and vice versa.

Specified by:

isWrapperFor in interface Wrapper

Parameters:

iface - - the class that defines the interface

Returns:

- true if the instance implements the interface

Throws:

SQLException - - when an error occurs when judges the object