org.hibernate.search.query
Class ScrollableResultsImpl

java.lang.Object
  org.hibernate.search.query.ScrollableResultsImpl

All Implemented Interfaces:

ScrollableResults

public class ScrollableResultsImpl
extends Object
implements ScrollableResults

Implements scrollable and paginated resultsets. Contrary to Query#iterate() or Query#list(), this implementation is exposed to returned null objects (if the index is out of date).

The following methods that change the value of 'current' will check and set its value to either 'afterLast' or 'beforeFirst' depending on direction. This is to prevent rogue values from setting it outside the boundaries of the results.

• next()
• previous()
• scroll(i)
• last()
• first()

Author:

Emmanuel Bernard, John Griffin, Sanne Grinovero

See Also:

Query

Constructor Summary

ScrollableResultsImpl(IndexSearcher searcher, int first, int max, int fetchSize, DocumentExtractor extractor, Loader loader, SearchFactory searchFactory, SessionImplementor sessionImplementor)

Method Summary

void	afterLast()
void	beforeFirst()
void	close()
boolean	first()
Object[]	get()
Object	get(int i) This method is not supported on Lucene based queries
BigDecimal	getBigDecimal(int col) This method is not supported on Lucene based queries
BigInteger	getBigInteger(int col) This method is not supported on Lucene based queries
byte[]	getBinary(int col) This method is not supported on Lucene based queries
Blob	getBlob(int col) This method is not supported on Lucene based queries
Boolean	getBoolean(int col) This method is not supported on Lucene based queries
Byte	getByte(int col) This method is not supported on Lucene based queries
Calendar	getCalendar(int col) This method is not supported on Lucene based queries
Character	getCharacter(int col) This method is not supported on Lucene based queries
Clob	getClob(int col) This method is not supported on Lucene based queries
Date	getDate(int col) This method is not supported on Lucene based queries
Double	getDouble(int col) This method is not supported on Lucene based queries
Float	getFloat(int col) This method is not supported on Lucene based queries
Integer	getInteger(int col) This method is not supported on Lucene based queries
Locale	getLocale(int col) This method is not supported on Lucene based queries
Long	getLong(int col) This method is not supported on Lucene based queries
int	getRowNumber()
Short	getShort(int col) This method is not supported on Lucene based queries
String	getString(int col) This method is not supported on Lucene based queries
String	getText(int col) This method is not supported on Lucene based queries
TimeZone	getTimeZone(int col) This method is not supported on Lucene based queries
Type	getType(int i) This method is not supported on Lucene based queries
boolean	isFirst()
boolean	isLast()
boolean	last()
boolean	next()
boolean	previous()
boolean	scroll(int i)
boolean	setRowNumber(int rowNumber)

Methods inherited from class java.lang.Object

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

Constructor Detail

ScrollableResultsImpl

public ScrollableResultsImpl(IndexSearcher searcher,
                             int first,
                             int max,
                             int fetchSize,
                             DocumentExtractor extractor,
                             Loader loader,
                             SearchFactory searchFactory,
                             SessionImplementor sessionImplementor)

Method Detail

next

public boolean next()

Specified by:

next in interface ScrollableResults

previous

public boolean previous()

Specified by:

previous in interface ScrollableResults

scroll

public boolean scroll(int i)

Specified by:

scroll in interface ScrollableResults

last

public boolean last()

Specified by:

last in interface ScrollableResults

first

public boolean first()

Specified by:

first in interface ScrollableResults

beforeFirst

public void beforeFirst()

Specified by:

beforeFirst in interface ScrollableResults

afterLast

public void afterLast()

Specified by:

afterLast in interface ScrollableResults

isFirst

public boolean isFirst()

Specified by:

isFirst in interface ScrollableResults

isLast

public boolean isLast()

Specified by:

isLast in interface ScrollableResults

close

public void close()

Specified by:

close in interface ScrollableResults

get

public Object[] get()
             throws HibernateException

Specified by:

get in interface ScrollableResults

Throws:

HibernateException

get

public Object get(int i)

This method is not supported on Lucene based queries

Specified by:

get in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getType

public Type getType(int i)

This method is not supported on Lucene based queries

Specified by:

getType in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getInteger

public Integer getInteger(int col)

This method is not supported on Lucene based queries

Specified by:

getInteger in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getLong

public Long getLong(int col)

This method is not supported on Lucene based queries

Specified by:

getLong in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getFloat

public Float getFloat(int col)

This method is not supported on Lucene based queries

Specified by:

getFloat in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getBoolean

public Boolean getBoolean(int col)

This method is not supported on Lucene based queries

Specified by:

getBoolean in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getDouble

public Double getDouble(int col)

This method is not supported on Lucene based queries

Specified by:

getDouble in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getShort

public Short getShort(int col)

This method is not supported on Lucene based queries

Specified by:

getShort in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getByte

public Byte getByte(int col)

This method is not supported on Lucene based queries

Specified by:

getByte in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getCharacter

public Character getCharacter(int col)

This method is not supported on Lucene based queries

Specified by:

getCharacter in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getBinary

public byte[] getBinary(int col)

This method is not supported on Lucene based queries

Specified by:

getBinary in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getText

public String getText(int col)

This method is not supported on Lucene based queries

Specified by:

getText in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getBlob

public Blob getBlob(int col)

This method is not supported on Lucene based queries

Specified by:

getBlob in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getClob

public Clob getClob(int col)

This method is not supported on Lucene based queries

Specified by:

getClob in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getString

public String getString(int col)

This method is not supported on Lucene based queries

Specified by:

getString in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getBigDecimal

public BigDecimal getBigDecimal(int col)

This method is not supported on Lucene based queries

Specified by:

getBigDecimal in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getBigInteger

public BigInteger getBigInteger(int col)

This method is not supported on Lucene based queries

Specified by:

getBigInteger in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getDate

public Date getDate(int col)

This method is not supported on Lucene based queries

Specified by:

getDate in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getLocale

public Locale getLocale(int col)

This method is not supported on Lucene based queries

Specified by:

getLocale in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getCalendar

public Calendar getCalendar(int col)

This method is not supported on Lucene based queries

Specified by:

getCalendar in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getTimeZone

public TimeZone getTimeZone(int col)

This method is not supported on Lucene based queries

Specified by:

getTimeZone in interface ScrollableResults

Throws:

UnsupportedOperationException - always thrown

getRowNumber

public int getRowNumber()

Specified by:

getRowNumber in interface ScrollableResults

setRowNumber

public boolean setRowNumber(int rowNumber)

Specified by:

setRowNumber in interface ScrollableResults