net.ontopia.persistence.proxy

Interface QueryResultIF

All Known Implementing Classes:

RDBMSQueryResult

public interface QueryResultIF

INTERNAL: Interface for representing two-dimensional (or potentially even N-dimensional) query results.

Note: it is a goal that this interface is aligned with net.ontopia.topicmaps.query.core.QueryResultIF.

Method Summary

Modifier and Type	Method and Description
void	close() INTERNAL: Closes the query result, which allows it to free its resources.
String	getColumnName(int ix) PUBLIC: Returns the name of the given column.
String[]	getColumnNames() PUBLIC: Returns the names of the columns.
Object	getValue(int index) INTERNAL: Get the value of the field with the specified index from the current result row.
Object[]	getValues() INTERNAL: Get the values of all fields from the current result row.
Object[]	getValues(Object[] values) INTERNAL: Reads the values of all fields from the current result row into the specified array.
int	getWidth() INTERNAL: Returns the number of fields that each row in the query result set have.
boolean	next() INTERNAL: Skip to the next row in the query result set.

Method Detail

next

boolean next()

INTERNAL: Skip to the next row in the query result set. The method returns false if the skip was not valid, i.e. we're at the end of the result set.

getWidth

int getWidth()

INTERNAL: Returns the number of fields that each row in the query result set have.

getColumnNames

String[] getColumnNames()

PUBLIC: Returns the names of the columns.

getColumnName

String getColumnName(int ix)

PUBLIC: Returns the name of the given column. The column index is zero-based.

Throws:

IndexOutOfBoundsException - if there is no such column.

getValue

Object getValue(int index)

INTERNAL: Get the value of the field with the specified index from the current result row. The index is zero-based.

getValues

Object[] getValues()

INTERNAL: Get the values of all fields from the current result row.

getValues

Object[] getValues(Object[] values)

INTERNAL: Reads the values of all fields from the current result row into the specified array.

close

void close()

INTERNAL: Closes the query result, which allows it to free its resources.