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ScrollableResultsImpl (Hibernate API Documentation) - Hibernate 3.2.3 正式版 API 英文文档

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org.hibernate.impl
Class ScrollableResultsImpl

java.lang.Object
  org.hibernate.impl.AbstractScrollableResults
      org.hibernate.impl.ScrollableResultsImpl

All Implemented Interfaces:

ScrollableResults

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public class ScrollableResultsImpl

extends AbstractScrollableResults

implements ScrollableResults

Implementation of the ScrollableResults interface

Author:

Gavin King

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Constructor Summary

ScrollableResultsImpl(ResultSet rs, PreparedStatement ps, SessionImplementor sess, Loader loader, QueryParameters queryParameters, Type[] types, HolderInstantiator holderInstantiator)

 

Method Summary
void	afterLast()           Go to a location just after the last result
void	beforeFirst()           Go to a location just before first result (this is the initial location)
boolean	first()           Go to the first result
protected  Object[]	getCurrentRow()
int	getRowNumber()           Get the current location in the result set.
boolean	isFirst()           Is this the first result?
boolean	isLast()           Is this the last result?
boolean	last()           Go to the last result
boolean	next()           Advance to the next result
boolean	previous()           Retreat to the previous result
boolean	scroll(int i)           Scroll an arbitrary number of locations
boolean	setRowNumber(int rowNumber)           Set the current location in the result set, numbered from either the first row (row number 0), or the last row (row number -1).

 

Methods inherited from class org.hibernate.impl.AbstractScrollableResults

afterScrollOperation, close, get, get, getBigDecimal, getBigInteger, getBinary, getBlob, getBoolean, getByte, getCalendar, getCharacter, getClob, getDate, getDouble, getFinal, getFloat, getHolderInstantiator, getInteger, getLoader, getLocale, getLong, getNonFinal, getPs, getQueryParameters, getResultSet, getSession, getShort, getString, getText, getTimeZone, getType, getTypes

 

Methods inherited from class java.lang.Object

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

 

Methods inherited from interface org.hibernate.ScrollableResults

close, get, get, getBigDecimal, getBigInteger, getBinary, getBlob, getBoolean, getByte, getCalendar, getCharacter, getClob, getDate, getDouble, getFloat, getInteger, getLocale, getLong, getShort, getString, getText, getTimeZone, getType

 

Constructor Detail

ScrollableResultsImpl

public ScrollableResultsImpl(ResultSet rs,
                             PreparedStatement ps,
                             SessionImplementor sess,
                             Loader loader,
                             QueryParameters queryParameters,
                             Type[] types,
                             HolderInstantiator holderInstantiator)
                      throws MappingException

Method Detail

getCurrentRow

protected Object[] getCurrentRow()

Specified by:

getCurrentRow in class AbstractScrollableResults

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scroll

public boolean scroll(int i)
               throws HibernateException

Description copied from interface: ScrollableResults

Scroll an arbitrary number of locations

Specified by:

scroll in interface ScrollableResults

Parameters:

i - a positive (forward) or negative (backward) number of rows

Returns:

true if there is a result at the new location

Throws:

HibernateException

See Also:

ScrollableResults.scroll(int)

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first

public boolean first()
              throws HibernateException

Description copied from interface: ScrollableResults

Go to the first result

Specified by:

first in interface ScrollableResults

Returns:

true if there are any results

Throws:

HibernateException

See Also:

ScrollableResults.first()

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last

public boolean last()
             throws HibernateException

Description copied from interface: ScrollableResults

Go to the last result

Specified by:

last in interface ScrollableResults

Returns:

true if there are any results

Throws:

HibernateException

See Also:

ScrollableResults.last()

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next

public boolean next()
             throws HibernateException

Description copied from interface: ScrollableResults

Advance to the next result

Specified by:

next in interface ScrollableResults

Returns:

true if there is another result

Throws:

HibernateException

See Also:

ScrollableResults.next()

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previous

public boolean previous()
                 throws HibernateException

Description copied from interface: ScrollableResults

Retreat to the previous result

Specified by:

previous in interface ScrollableResults

Returns:

true if there is a previous result

Throws:

HibernateException

See Also:

ScrollableResults.previous()

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afterLast

public void afterLast()
               throws HibernateException

Description copied from interface: ScrollableResults

Go to a location just after the last result

Specified by:

afterLast in interface ScrollableResults

Throws:

HibernateException

See Also:

ScrollableResults.afterLast()

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beforeFirst

public void beforeFirst()
                 throws HibernateException

Description copied from interface: ScrollableResults

Go to a location just before first result (this is the initial location)

Specified by:

beforeFirst in interface ScrollableResults

Throws:

HibernateException

See Also:

ScrollableResults.beforeFirst()

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isFirst

public boolean isFirst()
                throws HibernateException

Description copied from interface: ScrollableResults

Is this the first result?

Specified by:

isFirst in interface ScrollableResults

Returns:

true if this is the first row of results

Throws:

HibernateException

See Also:

ScrollableResults.isFirst()

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isLast

public boolean isLast()
               throws HibernateException

Description copied from interface: ScrollableResults

Is this the last result?

Specified by:

isLast in interface ScrollableResults

Returns:

true if this is the last row of results

Throws:

HibernateException

See Also:

ScrollableResults.isLast()

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getRowNumber

public int getRowNumber()
                 throws HibernateException

Description copied from interface: ScrollableResults

Get the current location in the result set. The first row is number 0, contrary to JDBC.

Specified by:

getRowNumber in interface ScrollableResults

Returns:

the row number, numbered from 0, or -1 if there is no current row

Throws:

HibernateException

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setRowNumber

public boolean setRowNumber(int rowNumber)
                     throws HibernateException

Description copied from interface: ScrollableResults

Set the current location in the result set, numbered from either the first row (row number 0), or the last row (row number -1).

Specified by:

setRowNumber in interface ScrollableResults

Parameters:

rowNumber - the row number, numbered from the last row, in the case of a negative row number

Returns:

true if there is a row at that row number

Throws:

HibernateException

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