Package net.ontopia.topicmaps.nav2.taglibs.tolog

Class BufferedQueryResult

java.lang.Object

net.ontopia.topicmaps.nav2.taglibs.tolog.BufferedQueryResult

All Implemented Interfaces:

AutoCloseable, BufferedQueryResultIF, QueryResultIF

public class BufferedQueryResult
extends Object
implements BufferedQueryResultIF

Field Summary

Fields

Modifier and Type	Field	Description
protected Collection	buffer
protected Object[]	bufferedRow
protected Iterator	bufferIt
protected boolean	inBuffer
protected String	query
protected QueryResultIF	queryResult

Constructor Summary

Constructors

Constructor	Description
BufferedQueryResult(QueryResultIF queryResult, String query)

Method Summary

Modifier and Type	Method	Description
void	close()	PUBLIC: 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.
int	getIndex(String colname)	PUBLIC: Returns the index of the named column.
String	getQuery()	Get the query of the query result.
Object	getValue(int ix)	PUBLIC: Returns the value in the given column in the current match.
Object	getValue(String colname)	PUBLIC: Returns the value in the given column in the current match.
Object[]	getValues()	PUBLIC: Returns the current match as an array of values.
Object[]	getValues(Object[] values)	PUBLIC: Reads the values of the current match into the specified array.
int	getWidth()	PUBLIC: Returns the number of columns in the result.
boolean	next()	PUBLIC: Steps to the next match, returning true if a valid match was found, and false if there are no more matches.
void	restart()	Bring this BufferedQueryResultIF back to the initial state after it was created (instantiated to an implementing class).

Methods inherited from class java.lang.Object

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

Field Details

queryResult

protected QueryResultIF queryResult

buffer

protected Collection buffer

bufferedRow

protected Object[] bufferedRow

bufferIt

protected Iterator bufferIt

inBuffer

protected boolean inBuffer

query

protected String query

Constructor Details

BufferedQueryResult

public BufferedQueryResult(QueryResultIF queryResult,
 String query)

Method Details

close

public void close()

Description copied from interface: QueryResultIF

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

Specified by:

close in interface AutoCloseable

Specified by:

close in interface QueryResultIF

getColumnName

public String getColumnName(int ix)

Description copied from interface: QueryResultIF

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

Specified by:

getColumnName in interface QueryResultIF

getColumnNames

public String[] getColumnNames()

Description copied from interface: QueryResultIF

PUBLIC: Returns the names of the columns.

Specified by:

getColumnNames in interface QueryResultIF

getIndex

public int getIndex(String colname)

Description copied from interface: QueryResultIF

PUBLIC: Returns the index of the named column. Returns -1 if the column does not exist. The column index is zero-based.

Specified by:

getIndex in interface QueryResultIF

getValue

public Object getValue(int ix)

Description copied from interface: QueryResultIF

PUBLIC: Returns the value in the given column in the current match. The column index is zero-based. Requires next() to have been called first.

Specified by:

getValue in interface QueryResultIF

getValue

public Object getValue(String colname)

Description copied from interface: QueryResultIF

PUBLIC: Returns the value in the given column in the current match. Requires next() to have been called first.

Specified by:

getValue in interface QueryResultIF

getValues

public Object[] getValues()

Description copied from interface: QueryResultIF

PUBLIC: Returns the current match as an array of values. Note that the returned array should not be modified as it may lead to undefined results. Requires next() to have been called first.

Specified by:

getValues in interface QueryResultIF

getValues

public Object[] getValues(Object[] values)

Description copied from interface: QueryResultIF

PUBLIC: Reads the values of the current match into the specified array. Requires next() to have been called first.

Specified by:

getValues in interface QueryResultIF

getWidth

public int getWidth()

Description copied from interface: QueryResultIF

PUBLIC: Returns the number of columns in the result.

Specified by:

getWidth in interface QueryResultIF

next

public boolean next()

Description copied from interface: QueryResultIF

PUBLIC: Steps to the next match, returning true if a valid match was found, and false if there are no more matches. Must be called before values can be returned.

Specified by:

next in interface QueryResultIF

getQuery

public String getQuery()

Description copied from interface: BufferedQueryResultIF

Get the query of the query result.

Specified by:

getQuery in interface BufferedQueryResultIF

restart

public void restart()

Description copied from interface: BufferedQueryResultIF

Bring this BufferedQueryResultIF back to the initial state after it was created (instantiated to an implementing class).

Specified by:

restart in interface BufferedQueryResultIF