Package org.apache.jena.jdbc.results.metadata

Class AbstractResultsMetadata

java.lang.Object

org.apache.jena.jdbc.results.metadata.AbstractResultsMetadata

All Implemented Interfaces:

ResultSetMetaData, Wrapper

Direct Known Subclasses:

JenaResultsMetadata, MetaResultSetMetadata

public class AbstractResultsMetadata
extends Object
implements ResultSetMetaData

Abstract implementation of JDBC result set metadata

Field Summary

Fields inherited from interface java.sql.ResultSetMetaData

columnNoNulls, columnNullable, columnNullableUnknown

Constructor Summary

Constructors

Constructor	Description
AbstractResultsMetadata(ResultSet results, ColumnInfo[] columns)	Abstract implementation of result set metadata

Method Summary

Modifier and Type	Method	Description
String	getCatalogName(int column)
String	getColumnClassName(int column)
int	getColumnCount()
int	getColumnDisplaySize(int column)	Gets a columns display size
String	getColumnLabel(int column)
String	getColumnName(int column)
int	getColumnType(int column)
String	getColumnTypeName(int column)
List<ColumnInfo>	getJenaColumnInfo()	Gets a copy of the raw underlying column information
int	getPrecision(int column)
int	getScale(int column)
String	getSchemaName(int column)
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

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

Constructor Details

AbstractResultsMetadata

public AbstractResultsMetadata(ResultSet results,
 ColumnInfo[] columns)
                        throws SQLException

Abstract implementation of result set metadata

Parameters:

results - Result Set

columns - Column information

Throws:

SQLException - Thrown if metadata cannot be created

Method Details

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

getCatalogName

public String getCatalogName(int column)
                      throws SQLException

Specified by:

getCatalogName in interface ResultSetMetaData

Throws:

SQLException

getColumnClassName

public String getColumnClassName(int column)
                          throws SQLException

Specified by:

getColumnClassName in interface ResultSetMetaData

Throws:

SQLException

getColumnCount

public int getColumnCount()

Specified by:

getColumnCount in interface ResultSetMetaData

getColumnDisplaySize

public int getColumnDisplaySize(int column)
                         throws SQLException

Gets a columns display size

Since RDF imposes no maximum on the size of a term this may be arbitrarily large hence Integer.MAX_VALUE is returned, users should not rely on this method to give them accurate information for UI usage.

Specified by:

getColumnDisplaySize in interface ResultSetMetaData

Throws:

SQLException

getColumnName

public String getColumnName(int column)
                     throws SQLException

Specified by:

getColumnName in interface ResultSetMetaData

Throws:

SQLException

getColumnLabel

public String getColumnLabel(int column)
                      throws SQLException

Specified by:

getColumnLabel in interface ResultSetMetaData

Throws:

SQLException

getColumnType

public int getColumnType(int column)
                  throws SQLException

Specified by:

getColumnType in interface ResultSetMetaData

Throws:

SQLException

getColumnTypeName

public String getColumnTypeName(int column)
                         throws SQLException

Specified by:

getColumnTypeName in interface ResultSetMetaData

Throws:

SQLException

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

getSchemaName

public String getSchemaName(int column)

Specified by:

getSchemaName in interface ResultSetMetaData

getTableName

public String getTableName(int column)

Specified by:

getTableName in interface ResultSetMetaData

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

isCurrency

public boolean isCurrency(int column)
                   throws SQLException

Specified by:

isCurrency in interface ResultSetMetaData

Throws:

SQLException

isDefinitelyWritable

public boolean isDefinitelyWritable(int column)
                             throws SQLException

Specified by:

isDefinitelyWritable in interface ResultSetMetaData

Throws:

SQLException

isNullable

public int isNullable(int column)
               throws SQLException

Specified by:

isNullable in interface ResultSetMetaData

Throws:

SQLException

isReadOnly

public boolean isReadOnly(int column)
                   throws SQLException

Specified by:

isReadOnly in interface ResultSetMetaData

Throws:

SQLException

isSearchable

public boolean isSearchable(int column)
                     throws SQLException

Specified by:

isSearchable in interface ResultSetMetaData

Throws:

SQLException

isSigned

public boolean isSigned(int column)
                 throws SQLException

Specified by:

isSigned in interface ResultSetMetaData

Throws:

SQLException

isWritable

public boolean isWritable(int column)
                   throws SQLException

Specified by:

isWritable in interface ResultSetMetaData

Throws:

SQLException

getJenaColumnInfo

public List<ColumnInfo> getJenaColumnInfo()

Gets a copy of the raw underlying column information

Returns:

Column Information