org.apache.openjpa.jdbc.sql
Interface Result

All Superinterfaces:

Closeable

All Known Implementing Classes:

AbstractResult, MergedResult, ResultSetResult, SelectImpl.SelectResult

public interface Result
extends Closeable

A result from the execution of a query or stored procedure. This interface is aligned closely with the ResultSet, so you can expect like-named methods to have similar semantics. However, the interface has been distilled and simplified, so a result object could easily mask information sources other than a result set. For more flexible customization of data loading, see the PCResultObjectProvider.

Author:

Abe White

See Also:

ResultSetResult

Method Summary

boolean	absolute(int row) Move to the given 0-based row in the result, or return false if the row does not exist.
void	close() Free the resources used by this result; do not close the SQL connection.
boolean	contains(Column col, Joins joins) Return true if the given column is available in the result.
boolean	contains(Object obj) Return true if the given id or column is available in the result.
boolean	containsAll(Column[] cols, Joins joins) Return true if all the given columns are available in the result.
boolean	containsAll(Object[] objs) Return true if all the given ids or columns are available in the result.
void	endDataRequest() Ends a data request.
Array	getArray(Column col, Joins joins) Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
Array	getArray(Object obj) Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
InputStream	getAsciiStream(Column col, Joins joins) Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
InputStream	getAsciiStream(Object obj) Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
ClassMapping	getBaseMapping() If this is the result of a UNION used to select a hierarchy of mappings, the base mapping represented by the current row.
BigDecimal	getBigDecimal(Column col, Joins joins) Return the value stored in the given column.
BigDecimal	getBigDecimal(Object obj) Return the value stored in the given column or id.
BigInteger	getBigInteger(Column col, Joins joins) Return the value stored in the given column.
BigInteger	getBigInteger(Object obj) Return the value stored in the given column or id.
InputStream	getBinaryStream(Column col, Joins joins) Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
InputStream	getBinaryStream(Object obj) Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
Blob	getBlob(Column col, Joins joins) Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
Blob	getBlob(Object obj) Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
boolean	getBoolean(Column col, Joins joins) Return the value stored in the given column.
boolean	getBoolean(Object obj) Return the value stored in the given column or id.
byte	getByte(Column col, Joins joins) Return the value stored in the given column.
byte	getByte(Object obj) Return the value stored in the given column or id.
byte[]	getBytes(Column col, Joins joins) Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
byte[]	getBytes(Object obj) Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
Calendar	getCalendar(Column col, Joins joins) Return the value stored in the given column.
Calendar	getCalendar(Object obj) Return the value stored in the given column or id.
char	getChar(Column col, Joins joins) Return the value stored in the given column.
char	getChar(Object obj) Return the value stored in the given column or id.
Reader	getCharacterStream(Column col, Joins joins) Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
Reader	getCharacterStream(Object obj) Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
Clob	getClob(Column col, Joins joins) Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
Clob	getClob(Object obj) Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
Date	getDate(Column col, Calendar cal, Joins joins) Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
Date	getDate(Column col, Joins joins) Return the value stored in the given column.
Date	getDate(Object obj) Return the value stored in the given column or id.
Date	getDate(Object obj, Calendar cal) Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
double	getDouble(Column col, Joins joins) Return the value stored in the given column.
double	getDouble(Object obj) Return the value stored in the given column or id.
Object	getEager(FieldMapping key) The eager result for the given key, or null if none.
float	getFloat(Column col, Joins joins) Return the value stored in the given column.
float	getFloat(Object obj) Return the value stored in the given column or id.
int	getInt(Column col, Joins joins) Return the value stored in the given column.
int	getInt(Object obj) Return the value stored in the given column or id.
InputStream	getLOBStream(JDBCStore store, Object obj)
Locale	getLocale(Column col, Joins joins) Return the value stored in the given column.
Locale	getLocale(Object obj) Return the value stored in the given column or id.
long	getLong(Column col, Joins joins) Return the value stored in the given column.
long	getLong(Object obj) Return the value stored in the given column or id.
FieldMapping	getMappedByFieldMapping() If this is the result used to select a toMany relationship, the mappedByFieldMapping is field mapping representing the inverse relationship.
Object	getMappedByValue() If this is the result used to select a toMany relationship, the mappedByValue is value of the owner of the toMany relationship.
Number	getNumber(Column col, Joins joins) Return the value stored in the given column.
Number	getNumber(Object obj) Return the value stored in the given column or id.
Object	getObject(Column col, Object arg, Joins joins) Return the value stored in the given column.
Object	getObject(Object obj, int metaType, Object arg) Return the value stored in the given column or id.
Ref	getRef(Column col, Map map, Joins joins) Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
Ref	getRef(Object obj, Map map) Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
short	getShort(Column col, Joins joins) Return the value stored in the given column.
short	getShort(Object obj) Return the value stored in the given column or id.
Object	getSQLObject(Column col, Map map, Joins joins) Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
Object	getSQLObject(Object obj, Map map) Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
String	getString(Column col, Joins joins) Return the value stored in the given column.
String	getString(Object obj) Return the value stored in the given column or id.
Time	getTime(Column col, Calendar cal, Joins joins) Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
Time	getTime(Object obj, Calendar cal) Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
Timestamp	getTimestamp(Column col, Calendar cal, Joins joins) Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.
Timestamp	getTimestamp(Object obj, Calendar cal) Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.
int	indexOf() The index of the select within the UNION that the current row corresponds to, or 0.
boolean	isLocking() If true, then any results loaded from this Result will be locked in the database.
Object	load(ClassMapping mapping, JDBCStore store, JDBCFetchConfiguration fetch) Load a pc object using the given store manager.
Object	load(ClassMapping mapping, JDBCStore store, JDBCFetchConfiguration fetch, Joins joins) Load a pc object using the given store manager.
Joins	newJoins() Return a new joins instance to use for traversing to related data.
boolean	next() Advance to the next row, or return false if there are no more rows in the result.
void	pushBack() Push back the last result.
void	putEager(FieldMapping key, Object res) The eager result for the given key, or null if none.
void	setBaseMapping(ClassMapping mapping) If this is the result of a UNION used to select a hierarchy of mappings, the base mapping represented by the current row.
void	setMappedByFieldMapping(FieldMapping fieldMapping) If this is the result used to select a toMany relationship, the mappedByFieldMapping is field mapping representing the inverse relationship.
void	setMappedByValue(Object mappedByValue) If this is the result used to select a toMany relationship, the mappedByValue is value of the owner of the toMany relationship.
int	size() Return the number of rows in this result.
void	startDataRequest(Object mapping) Informs this receiver about the application element for which a subsequent data request will be made.
boolean	supportsRandomAccess() Return true if the result supports random access.
boolean	wasNull() Return true if the last value fetched was null.

Method Detail

getEager

Object getEager(FieldMapping key)

The eager result for the given key, or null if none.

putEager

void putEager(FieldMapping key,
              Object res)

The eager result for the given key, or null if none.

newJoins

Joins newJoins()

Return a new joins instance to use for traversing to related data.

close

void close()

Free the resources used by this result; do not close the SQL connection.

Specified by:

close in interface Closeable

isLocking

boolean isLocking()

If true, then any results loaded from this Result will be locked in the database.

supportsRandomAccess

boolean supportsRandomAccess()
                             throws SQLException

Return true if the result supports random access.

Throws:

SQLException

absolute

boolean absolute(int row)
                 throws SQLException

Move to the given 0-based row in the result, or return false if the row does not exist. This method will only be called if the result supports random access.

Throws:

SQLException

next

boolean next()
             throws SQLException

Advance to the next row, or return false if there are no more rows in the result.

Throws:

SQLException

pushBack

void pushBack()
              throws SQLException

Push back the last result. In other words, just ignore the next call to next(). After the first time this method is called, additional calls before a call to next() or absolute(int) should have no further affect.

Throws:

SQLException

size

int size()
         throws SQLException

Return the number of rows in this result.

Throws:

SQLException

contains

boolean contains(Object obj)
                 throws SQLException

Return true if the given id or column is available in the result.

Throws:

SQLException

containsAll

boolean containsAll(Object[] objs)
                    throws SQLException

Return true if all the given ids or columns are available in the result.

Throws:

SQLException

contains

boolean contains(Column col,
                 Joins joins)
                 throws SQLException

Return true if the given column is available in the result.

Throws:

SQLException

containsAll

boolean containsAll(Column[] cols,
                    Joins joins)
                    throws SQLException

Return true if all the given columns are available in the result.

Throws:

SQLException

getBaseMapping

ClassMapping getBaseMapping()

If this is the result of a UNION used to select a hierarchy of mappings, the base mapping represented by the current row. This information is not available after getting any eager results from the row.

setBaseMapping

void setBaseMapping(ClassMapping mapping)

If this is the result of a UNION used to select a hierarchy of mappings, the base mapping represented by the current row. This information is not available after getting any eager results from the row.

getMappedByFieldMapping

FieldMapping getMappedByFieldMapping()

If this is the result used to select a toMany relationship, the mappedByFieldMapping is field mapping representing the inverse relationship. This is to avoid unneeded extra sql to retrieve the eager inverse field.

setMappedByFieldMapping

void setMappedByFieldMapping(FieldMapping fieldMapping)

If this is the result used to select a toMany relationship, the mappedByFieldMapping is field mapping representing the inverse relationship. This is to avoid unneeded extra sql to retrieve the eager inverse field.

getMappedByValue

Object getMappedByValue()

If this is the result used to select a toMany relationship, the mappedByValue is value of the owner of the toMany relationship. This is to avoid unneeded extra sql to retrieve the eager inverse field.

setMappedByValue

void setMappedByValue(Object mappedByValue)

If this is the result used to select a toMany relationship, the mappedByValue is value of the owner of the toMany relationship. This is to avoid unneeded extra sql to retrieve the eager inverse field.

indexOf

int indexOf()

The index of the select within the UNION that the current row corresponds to, or 0.

load

Object load(ClassMapping mapping,
            JDBCStore store,
            JDBCFetchConfiguration fetch)
            throws SQLException

Load a pc object using the given store manager.

Throws:

SQLException

load

Object load(ClassMapping mapping,
            JDBCStore store,
            JDBCFetchConfiguration fetch,
            Joins joins)
            throws SQLException

Load a pc object using the given store manager.

Throws:

SQLException

getArray

Array getArray(Object obj)
               throws SQLException

Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getAsciiStream

InputStream getAsciiStream(Object obj)
                           throws SQLException

Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getBigDecimal

BigDecimal getBigDecimal(Object obj)
                         throws SQLException

Return the value stored in the given column or id.

Throws:

SQLException

getBigInteger

BigInteger getBigInteger(Object obj)
                         throws SQLException

Return the value stored in the given column or id.

Throws:

SQLException

getBinaryStream

InputStream getBinaryStream(Object obj)
                            throws SQLException

Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getLOBStream

InputStream getLOBStream(JDBCStore store,
                         Object obj)
                         throws SQLException

Throws:

SQLException

getBlob

Blob getBlob(Object obj)
             throws SQLException

Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getBoolean

boolean getBoolean(Object obj)
                   throws SQLException

Return the value stored in the given column or id.

Throws:

SQLException

getByte

byte getByte(Object obj)
             throws SQLException

Return the value stored in the given column or id.

Throws:

SQLException

getBytes

byte[] getBytes(Object obj)
                throws SQLException

Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getCalendar

Calendar getCalendar(Object obj)
                     throws SQLException

Return the value stored in the given column or id.

Throws:

SQLException

getChar

char getChar(Object obj)
             throws SQLException

Return the value stored in the given column or id.

Throws:

SQLException

getCharacterStream

Reader getCharacterStream(Object obj)
                          throws SQLException

Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getClob

Clob getClob(Object obj)
             throws SQLException

Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getDate

Date getDate(Object obj)
             throws SQLException

Return the value stored in the given column or id.

Throws:

SQLException

getDate

Date getDate(Object obj,
             Calendar cal)
             throws SQLException

Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getDouble

double getDouble(Object obj)
                 throws SQLException

Return the value stored in the given column or id.

Throws:

SQLException

getFloat

float getFloat(Object obj)
               throws SQLException

Return the value stored in the given column or id.

Throws:

SQLException

getInt

int getInt(Object obj)
           throws SQLException

Return the value stored in the given column or id.

Throws:

SQLException

getLocale

Locale getLocale(Object obj)
                 throws SQLException

Return the value stored in the given column or id.

Throws:

SQLException

getLong

long getLong(Object obj)
             throws SQLException

Return the value stored in the given column or id.

Throws:

SQLException

getNumber

Number getNumber(Object obj)
                 throws SQLException

Return the value stored in the given column or id.

Throws:

SQLException

getObject

Object getObject(Object obj,
                 int metaType,
                 Object arg)
                 throws SQLException

Return the value stored in the given column or id.

Parameters:

obj - the column or id whose data to fetch

metaType - the type code from JavaTypes or JavaSQLTypes for the type of the data; if obj is a column, you may specify -1 to use the column's recorded java type

arg - some JDBC data access methods use an argument, such as a Calendar or Map

Throws:

SQLException

getSQLObject

Object getSQLObject(Object obj,
                    Map map)
                    throws SQLException

Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getRef

Ref getRef(Object obj,
           Map map)
           throws SQLException

Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getShort

short getShort(Object obj)
               throws SQLException

Return the value stored in the given column or id.

Throws:

SQLException

getString

String getString(Object obj)
                 throws SQLException

Return the value stored in the given column or id.

Throws:

SQLException

getTime

Time getTime(Object obj,
             Calendar cal)
             throws SQLException

Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getTimestamp

Timestamp getTimestamp(Object obj,
                       Calendar cal)
                       throws SQLException

Return the value stored in the given column or id; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getArray

Array getArray(Column col,
               Joins joins)
               throws SQLException

Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getAsciiStream

InputStream getAsciiStream(Column col,
                           Joins joins)
                           throws SQLException

Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getBigDecimal

BigDecimal getBigDecimal(Column col,
                         Joins joins)
                         throws SQLException

Return the value stored in the given column.

Throws:

SQLException

getBigInteger

BigInteger getBigInteger(Column col,
                         Joins joins)
                         throws SQLException

Return the value stored in the given column.

Throws:

SQLException

getBinaryStream

InputStream getBinaryStream(Column col,
                            Joins joins)
                            throws SQLException

Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getBlob

Blob getBlob(Column col,
             Joins joins)
             throws SQLException

Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getBoolean

boolean getBoolean(Column col,
                   Joins joins)
                   throws SQLException

Return the value stored in the given column.

Throws:

SQLException

getByte

byte getByte(Column col,
             Joins joins)
             throws SQLException

Return the value stored in the given column.

Throws:

SQLException

getBytes

byte[] getBytes(Column col,
                Joins joins)
                throws SQLException

Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getCalendar

Calendar getCalendar(Column col,
                     Joins joins)
                     throws SQLException

Return the value stored in the given column.

Throws:

SQLException

getChar

char getChar(Column col,
             Joins joins)
             throws SQLException

Return the value stored in the given column.

Throws:

SQLException

getCharacterStream

Reader getCharacterStream(Column col,
                          Joins joins)
                          throws SQLException

Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getClob

Clob getClob(Column col,
             Joins joins)
             throws SQLException

Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getDate

Date getDate(Column col,
             Joins joins)
             throws SQLException

Return the value stored in the given column.

Throws:

SQLException

getDate

Date getDate(Column col,
             Calendar cal,
             Joins joins)
             throws SQLException

Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getDouble

double getDouble(Column col,
                 Joins joins)
                 throws SQLException

Return the value stored in the given column.

Throws:

SQLException

getFloat

float getFloat(Column col,
               Joins joins)
               throws SQLException

Return the value stored in the given column.

Throws:

SQLException

getInt

int getInt(Column col,
           Joins joins)
           throws SQLException

Return the value stored in the given column.

Throws:

SQLException

getLocale

Locale getLocale(Column col,
                 Joins joins)
                 throws SQLException

Return the value stored in the given column.

Throws:

SQLException

getLong

long getLong(Column col,
             Joins joins)
             throws SQLException

Return the value stored in the given column.

Throws:

SQLException

getNumber

Number getNumber(Column col,
                 Joins joins)
                 throws SQLException

Return the value stored in the given column.

Throws:

SQLException

getObject

Object getObject(Column col,
                 Object arg,
                 Joins joins)
                 throws SQLException

Return the value stored in the given column.

Parameters:

col - the column whose data to fetch

arg - some JDBC data access methods use an argument, such as a Calendar or Map

Throws:

SQLException

getSQLObject

Object getSQLObject(Column col,
                    Map map,
                    Joins joins)
                    throws SQLException

Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getRef

Ref getRef(Column col,
           Map map,
           Joins joins)
           throws SQLException

Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getShort

short getShort(Column col,
               Joins joins)
               throws SQLException

Return the value stored in the given column.

Throws:

SQLException

getString

String getString(Column col,
                 Joins joins)
                 throws SQLException

Return the value stored in the given column.

Throws:

SQLException

getTime

Time getTime(Column col,
             Calendar cal,
             Joins joins)
             throws SQLException

Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

getTimestamp

Timestamp getTimestamp(Column col,
                       Calendar cal,
                       Joins joins)
                       throws SQLException

Return the value stored in the given column; may not be supported by results that are not backed by a SQL result set.

Throws:

SQLException

wasNull

boolean wasNull()
                throws SQLException

Return true if the last value fetched was null.

Throws:

SQLException

startDataRequest

void startDataRequest(Object mapping)

Informs this receiver about the application element for which a subsequent data request will be made.

endDataRequest

void endDataRequest()

Ends a data request. Must be called in conjunction with startDataRequest(java.lang.Object). The calls can be nested as follws

 startDataRequest (relation); startDataRequest (relationsField);
 getObject("COLUMN_Y"); endDataRequest (); endDataRequest ();