org.gvsig.fmap.dal.feature.paging.impl

Class OneSubsetOneSetPagingCalculator

java.lang.Object

org.gvsig.tools.paging.DefaultPagingCalculator

org.gvsig.fmap.dal.feature.paging.impl.OneSubsetOneSetPagingCalculator

All Implemented Interfaces:

PagingCalculator

public class OneSubsetOneSetPagingCalculator
extends DefaultPagingCalculator

Performs the calculations needed to be able to do pagination with two Sets of data which must be viewed as a single set of data. The first set is supposed to be a subset of the second one, so the size of the first set must be subtracted from the second one.

Nested Class Summary

Nested classes/interfaces inherited from interface org.gvsig.tools.paging.PagingCalculator

PagingCalculator.Sizeable

Field Summary

Fields inherited from interface org.gvsig.tools.paging.PagingCalculator

DEFAULT_PAGE_SIZE

Constructor Summary

Constructors

Constructor and Description
OneSubsetOneSetPagingCalculator(PagingCalculator.Sizeable firstSet, PagingCalculator.Sizeable secondSet, int maxPageSize)
OneSubsetOneSetPagingCalculator(PagingCalculator.Sizeable firstSet, PagingCalculator.Sizeable secondSet, int maxPageSize, long currentPage)

Method Summary

Modifier and Type	Method and Description
long	getFirstSetHowMany() Returns the number of elements of the current page into the first set.
long	getFirstSetInitialIndex() Returns the index of the first element in the page which is available into the first set, if the current page has elements on it.
long	getFirstSetSize() Returns the size of the first set.
long	getSecondSetHowMany() Returns the number of elements of the current page into the second set.
long	getSecondSetInitialIndex() Returns the index of the first element in the page which is available into the second set, if the current page has elements on it.
long	getSecondSetSize() Returns the size of the second set.
long	getTotalSize() Returns the number of elements of the entire set of data.
protected boolean	hasCurrentPageAllValuesInFirstSet() Returns if the current page has all its values into the first set.
boolean	hasCurrentPageAnyValuesInFirstSet() Returns if the current page has any of its values into the first set.
boolean	hasCurrentPageAnyValuesInSecondSet() Returns if the current page has any of its values into the second set.

Methods inherited from class org.gvsig.tools.paging.DefaultPagingCalculator

getCurrentPage, getCurrentPageSize, getInitialIndex, getLastIndex, getMaxPageSize, getNumPages, setCurrentPage, setMaxPageSize

Methods inherited from class java.lang.Object

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

Constructor Detail

OneSubsetOneSetPagingCalculator

public OneSubsetOneSetPagingCalculator(PagingCalculator.Sizeable firstSet,
                                       PagingCalculator.Sizeable secondSet,
                                       int maxPageSize)

Parameters:

firstSet - the first set of elements to calculate pagination for

secondSet - the second set of elements to calculate pagination for

See Also:

AbstractPagingCalculator#AbstractPagingCalculator(int).

OneSubsetOneSetPagingCalculator

public OneSubsetOneSetPagingCalculator(PagingCalculator.Sizeable firstSet,
                                       PagingCalculator.Sizeable secondSet,
                                       int maxPageSize,
                                       long currentPage)

Parameters:

firstSet - the first set of elements to calculate pagination for

secondSet - the second set of elements to calculate pagination for

See Also:

AbstractPagingCalculator#AbstractPagingCalculator(int, long).

Method Detail

getTotalSize

public long getTotalSize()

Description copied from interface: PagingCalculator

Returns the number of elements of the entire set of data.

Specified by:

getTotalSize in interface PagingCalculator

Overrides:

getTotalSize in class DefaultPagingCalculator

Returns:

the number of elements

getFirstSetSize

public long getFirstSetSize()

Returns the size of the first set.

Returns:

the first set size

getSecondSetSize

public long getSecondSetSize()

Returns the size of the second set.

Returns:

the second set size

getFirstSetInitialIndex

public long getFirstSetInitialIndex()

Returns the index of the first element in the page which is available into the first set, if the current page has elements on it.

Returns:

the index of the first element into the first set

getSecondSetInitialIndex

public long getSecondSetInitialIndex()

Returns the index of the first element in the page which is available into the second set, if the current page has elements on it.

Returns:

the index of the first element into the second set

getFirstSetHowMany

public long getFirstSetHowMany()

Returns the number of elements of the current page into the first set.

Returns:

the number of elements of the current page into the first set

getSecondSetHowMany

public long getSecondSetHowMany()

Returns the number of elements of the current page into the second set.

Returns:

the number of elements of the current page into the second set

hasCurrentPageAllValuesInFirstSet

protected boolean hasCurrentPageAllValuesInFirstSet()

Returns if the current page has all its values into the first set.

Returns:

if the current page has all its values into the first set

hasCurrentPageAnyValuesInFirstSet

public boolean hasCurrentPageAnyValuesInFirstSet()

Returns if the current page has any of its values into the first set.

Returns:

if the current page has any of its values into the first set

hasCurrentPageAnyValuesInSecondSet

public boolean hasCurrentPageAnyValuesInSecondSet()

Returns if the current page has any of its values into the second set.

Returns:

if the current page has any of its values into the second set