oracle.jbo
Interface RowSet

All Known Subinterfaces:

ViewObject

All Known Implementing Classes:

ViewRowSetImpl

public interface RowSet

extends RowSetIterator, Properties, XMLInterface

Defines the middle-tier representation of a set of table rows.

A row set is scrollable range of rows, of which one may be designated as the current row.

Since:

JDeveloper 3.0

Fields inherited from interface oracle.jbo.XMLInterface

XML_OPT_ALL_ROWS, XML_OPT_ASSOC_CONSISTENT, XML_OPT_CHANGES_ONLY, XML_OPT_LIMIT_RANGE

Fields inherited from interface oracle.jbo.RowIterator

SLOT_BEFORE_FIRST, SLOT_BEYOND_LAST, SLOT_DELETED, SLOT_VALID

Method Summary

RowSetIterator	createRowSetIterator(java.lang.String name) Creates an iterator for the row set.
void	executeQuery() Executes the View Object's query.
ApplicationModule	getApplicationModule() Gets the row set's Application Module.
long	getEstimatedRowCount() Counts the number of rows in the collection defined by the View Object's query.
RowSetIterator[]	getMasterRowSetIterators() Return all controlling masters of this row set.
java.lang.String	getName() Gets the row set's name.
ViewObject	getViewObject() Gets the View Object that contains the row set.
java.lang.Object[]	getWhereClauseParams() Gets the bind-variable values to be used with the View Object's query condition.
boolean	isAssociationConsistent() Tests if association-consistent mode is on.
boolean	isExecuted() Returns true if the current ViewObject's query has been executed for this RowSet.
boolean	isForwardOnly() Tests if the row set set is constrained to sequential access.
boolean	removeMasterRowSetIterator(RowSetIterator masterRSI) Removes a master row set iterator.
void	setAssociationConsistent(boolean consistent) Sets the association-consistent flag for this row set.
void	setForwardOnly(boolean forwardOnly) Constrains the row set to sequential access.
boolean	setMasterRowSetIterator(RowSetIterator masterRSI) Sets the master iterator.
void	setWhereClauseParam(int index, java.lang.Object value) Specifies a single bind-variable value to use with the View Object's query condition, and executes the query.
void	setWhereClauseParams(java.lang.Object[] values) Specifies the bind-variable values to use with the View Object's query condition, and executes the query.

Methods inherited from interface oracle.jbo.RowSetIterator

addListener, createDetailRowSet, getDetailRowSets, getRowSet, removeListener

Methods inherited from interface oracle.jbo.Properties

getProperties, getProperty, refreshProperty

Methods inherited from interface oracle.jbo.XMLInterface

readXML, readXML, writeXML, writeXML

Methods inherited from interface oracle.jbo.RowIterator

createKey, createRow, enumerateRowsInRange, findByEntity, findByKey, first, getAllRowsInRange, getCurrentRow, getCurrentRowIndex, getCurrentRowSlot, getFetchedRowCount, getRangeIndexOf, getRangeSize, getRangeStart, getRow, getRowAtRangeIndex, getRowCount, getRowCountInRange, hasNext, hasPrevious, insertRow, insertRowAtRangeIndex, isRangeAtBottom, isRangeAtTop, last, next, previous, removeCurrentRow, reset, scrollRange, scrollRangeTo, setCurrentRow, setCurrentRowAtRangeIndex, setRangeSize, setRangeStart, setRowValidation

Method Detail

getName

public java.lang.String getName()

Gets the row set's name.

Specified by:

getName in interface RowSetIterator

Returns:

the name of the RowSet.

setMasterRowSetIterator

public boolean setMasterRowSetIterator(RowSetIterator masterRSI)

Sets the master iterator.

Parameters:

masterRSI - a master row set iterator.

Returns:

true if the operation succeeded.

getViewObject

public ViewObject getViewObject()

Gets the View Object that contains the row set.

Returns:

a ViewObject.

setWhereClauseParams

public void setWhereClauseParams(java.lang.Object[] values)

Specifies the bind-variable values to use with the View Object's query condition, and executes the query.

Parameters:

values - an array of values to use in the condition, in the order they are presented.

Returns:

true if the operation succeeded.

setWhereClauseParam

public void setWhereClauseParam(int index,
                                java.lang.Object value)

Specifies a single bind-variable value to use with the View Object's query condition, and executes the query.

Parameters:

index - the index of the attribute to be associated with value.

value - a bind-variable value.

Returns:

true if the operation succeeded.

getWhereClauseParams

public java.lang.Object[] getWhereClauseParams()

Gets the bind-variable values to be used with the View Object's query condition.

Returns:

an array of bind-variable values.

executeQuery

public void executeQuery()

Executes the View Object's query.

isExecuted

public boolean isExecuted()

Returns true if the current ViewObject's query has been executed for this RowSet.

createRowSetIterator

public RowSetIterator createRowSetIterator(java.lang.String name)

Creates an iterator for the row set.

Parameters:

name - the name to be given to the iterator.

Returns:

an iterator for this.

removeMasterRowSetIterator

public boolean removeMasterRowSetIterator(RowSetIterator masterRSI)

Removes a master row set iterator.

Parameters:

masterRS - the iterator to be removed.

Returns:

true if masterRS was found, false otherwise.

getMasterRowSetIterators

public RowSetIterator[] getMasterRowSetIterators()

Return all controlling masters of this row set.

Returns:

An array of master iterators.

getApplicationModule

public ApplicationModule getApplicationModule()

Gets the row set's Application Module.

Returns:

the ApplicationModule to which this belongs.

getEstimatedRowCount

public long getEstimatedRowCount()

Counts the number of rows in the collection defined by the View Object's query.

This number may fluxuate when the View Object is syncronized with its Entity Object.

Returns:

the number of rows.

isForwardOnly

public boolean isForwardOnly()

Tests if the row set set is constrained to sequential access.

Returns:

true if the row set is restricted to forward-only processing.

See Also:

setForwardOnly(boolean)

setForwardOnly

public void setForwardOnly(boolean forwardOnly)

Constrains the row set to sequential access.

When set to true, a row preceeding the current row cannot be designated as the new current row. This restriction allows performance to be optimized.

Parameters:

forwardOnly - true restricts the row set to forward-only processing, false otherwise.

setAssociationConsistent

public void setAssociationConsistent(boolean consistent)

Sets the association-consistent flag for this row set.

Association-consistent mode allows the user to see data that includes changes not yet posted to database, but at the cost of degraded performance.

When association-consistency is on the row set will reflect rows with modified foreign keys, newly created rows, and removed (deleted) rows. When association-consistency is off the user must post pending changes to database to make them visible.

This method is relevant only if this row set was one returned from a call to an entity association accessor.

Parameters:

isConsistent - indicates whether association-consistency should be on or not.

isAssociationConsistent

public boolean isAssociationConsistent()

Tests if association-consistent mode is on.

Returns:

true if un-posted changes are visible, false otherwise.

See Also:

setAssociationConsistent(boolean)