org.postgresql.jdbc

Class PgResultSetMetaData

java.lang.Object

org.postgresql.jdbc.PgResultSetMetaData

All Implemented Interfaces:

ResultSetMetaData, Wrapper, PGResultSetMetaData

public class PgResultSetMetaData
extends Object
implements ResultSetMetaData, PGResultSetMetaData

Field Summary

Fields

Modifier and Type	Field and Description
protected BaseConnection	connection
protected Field[]	fields

Fields inherited from interface java.sql.ResultSetMetaData

columnNoNulls, columnNullable, columnNullableUnknown

Constructor Summary

Constructors

Constructor and Description
PgResultSetMetaData(BaseConnection connection, Field[] fields)

Method Summary

Modifier and Type	Method and Description
String	getBaseColumnName(int column) Returns the underlying column name of a query result, or "" if it is unable to be determined.
String	getBaseSchemaName(int column) Returns the underlying schema name of query result, or "" if it is unable to be determined.
String	getBaseTableName(int column) Returns the underlying table name of query result, or "" if it is unable to be determined.
String	getCatalogName(int column)
String	getColumnClassName(int column) 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.
int	getColumnCount()
int	getColumnDisplaySize(int column)
String	getColumnLabel(int column)
String	getColumnName(int column)
int	getColumnType(int column)
String	getColumnTypeName(int column)
protected Field	getField(int columnIndex)
int	getFormat(int column) Is a column Text or Binary?
protected String	getPGType(int columnIndex)
int	getPrecision(int column)
int	getScale(int column)
String	getSchemaName(int column)
protected int	getSQLType(int columnIndex)
String	getTableName(int column)
boolean	isAutoIncrement(int column)
boolean	isCaseSensitive(int column)
boolean	isCurrency(int column)
boolean	isDefinitelyWritable(int column)
int	isNullable(int column)
boolean	isReadOnly(int column)
boolean	isSearchable(int column)
boolean	isSigned(int column)
boolean	isWrapperFor(Class<?> iface)
boolean	isWritable(int column)
<T> T	unwrap(Class<T> iface)

Methods inherited from class java.lang.Object

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

Field Detail

connection

protected final BaseConnection connection

fields

protected final Field[] fields

Constructor Detail

PgResultSetMetaData

public PgResultSetMetaData(BaseConnection connection,
                           Field[] fields)

Method Detail

getColumnCount

public int getColumnCount()
                   throws SQLException

Specified by:

getColumnCount in interface ResultSetMetaData

Throws:

SQLException

isAutoIncrement

public boolean isAutoIncrement(int column)
                        throws SQLException

Specified by:

isAutoIncrement in interface ResultSetMetaData

Throws:

SQLException

isCaseSensitive

public boolean isCaseSensitive(int column)
                        throws SQLException

Specified by:

isCaseSensitive in interface ResultSetMetaData

Throws:

SQLException

isSearchable

public boolean isSearchable(int column)
                     throws SQLException

Specified by:

isSearchable in interface ResultSetMetaData

Throws:

SQLException

isCurrency

public boolean isCurrency(int column)
                   throws SQLException

Specified by:

isCurrency in interface ResultSetMetaData

Throws:

SQLException

isNullable

public int isNullable(int column)
               throws SQLException

Specified by:

isNullable in interface ResultSetMetaData

Throws:

SQLException

isSigned

public boolean isSigned(int column)
                 throws SQLException

Specified by:

isSigned in interface ResultSetMetaData

Throws:

SQLException

getColumnDisplaySize

public int getColumnDisplaySize(int column)
                         throws SQLException

Specified by:

getColumnDisplaySize in interface ResultSetMetaData

Throws:

SQLException

getColumnLabel

public String getColumnLabel(int column)
                      throws SQLException

Specified by:

getColumnLabel in interface ResultSetMetaData

Throws:

SQLException

getColumnName

public String getColumnName(int column)
                     throws SQLException

Specified by:

getColumnName in interface ResultSetMetaData

Throws:

SQLException

getBaseColumnName

public String getBaseColumnName(int column)
                         throws SQLException

Description copied from interface: PGResultSetMetaData

Returns the underlying column name of a query result, or "" if it is unable to be determined.

Specified by:

getBaseColumnName in interface PGResultSetMetaData

Parameters:

column - column position (1-based)

Returns:

underlying column name of a query result

Throws:

SQLException - if something wrong happens

getSchemaName

public String getSchemaName(int column)
                     throws SQLException

Specified by:

getSchemaName in interface ResultSetMetaData

Throws:

SQLException

getBaseSchemaName

public String getBaseSchemaName(int column)
                         throws SQLException

Description copied from interface: PGResultSetMetaData

Returns the underlying schema name of query result, or "" if it is unable to be determined.

Specified by:

getBaseSchemaName in interface PGResultSetMetaData

Parameters:

column - column position (1-based)

Returns:

underlying schema name of query result

Throws:

SQLException - if something wrong happens

getPrecision

public int getPrecision(int column)
                 throws SQLException

Specified by:

getPrecision in interface ResultSetMetaData

Throws:

SQLException

getScale

public int getScale(int column)
             throws SQLException

Specified by:

getScale in interface ResultSetMetaData

Throws:

SQLException

getTableName

public String getTableName(int column)
                    throws SQLException

Specified by:

getTableName in interface ResultSetMetaData

Throws:

SQLException

getBaseTableName

public String getBaseTableName(int column)
                        throws SQLException

Description copied from interface: PGResultSetMetaData

Returns the underlying table name of query result, or "" if it is unable to be determined.

Specified by:

getBaseTableName in interface PGResultSetMetaData

Parameters:

column - column position (1-based)

Returns:

underlying table name of query result

Throws:

SQLException - if something wrong happens

getCatalogName

public String getCatalogName(int column)
                      throws SQLException

Specified by:

getCatalogName in interface ResultSetMetaData

Throws:

SQLException

getColumnType

public int getColumnType(int column)
                  throws SQLException

Specified by:

getColumnType in interface ResultSetMetaData

Throws:

SQLException

getFormat

public int getFormat(int column)
              throws SQLException

Description copied from interface: PGResultSetMetaData

Is a column Text or Binary?

Specified by:

getFormat in interface PGResultSetMetaData

Parameters:

column - column position (1-based)

Returns:

if column is Text or Binary

Throws:

SQLException - if something wrong happens

See Also:

Field.BINARY_FORMAT, Field.TEXT_FORMAT

getColumnTypeName

public String getColumnTypeName(int column)
                         throws SQLException

Specified by:

getColumnTypeName in interface ResultSetMetaData

Throws:

SQLException

isReadOnly

public boolean isReadOnly(int column)
                   throws SQLException

Specified by:

isReadOnly in interface ResultSetMetaData

Throws:

SQLException

isWritable

public boolean isWritable(int column)
                   throws SQLException

Specified by:

isWritable in interface ResultSetMetaData

Throws:

SQLException

isDefinitelyWritable

public boolean isDefinitelyWritable(int column)
                             throws SQLException

Specified by:

isDefinitelyWritable in interface ResultSetMetaData

Throws:

SQLException

getField

protected Field getField(int columnIndex)
                  throws SQLException

Throws:

SQLException

getPGType

protected String getPGType(int columnIndex)
                    throws SQLException

Throws:

SQLException

getSQLType

protected int getSQLType(int columnIndex)
                  throws SQLException

Throws:

SQLException

getColumnClassName

public String getColumnClassName(int column)
                          throws SQLException

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 ResultSetMetaData

Parameters:

column - the first column is 1, the second is 2, ...

Returns:

the fully-qualified name of the class in the Java programming language that would be used by the method ResultSet.getObject to retrieve the value in the specified column. This is the class name used for custom mapping.

Throws:

SQLException - if a database access error occurs

isWrapperFor

public boolean isWrapperFor(Class<?> iface)
                     throws SQLException

Specified by:

isWrapperFor in interface Wrapper

Throws:

SQLException

unwrap

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

Specified by:

unwrap in interface Wrapper

Throws:

SQLException