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Oracle Fusion Middleware Java API Reference for Oracle ADF Model 11g Release 1 (11.1.1) E10653-04 |
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java.lang.Objectjava.util.AbstractMap
oracle.jbo.common.JboAbstractMap
oracle.jbo.common.ws.WSObject
oracle.jbo.common.ws.WSAMComponent
oracle.jbo.common.ws.WSRowSetIteratorBase
oracle.jbo.common.ws.WSRowSetImpl
public class WSRowSetImpl
Nested Class Summary |
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Nested classes/interfaces inherited from class java.util.AbstractMap |
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java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V> |
Nested classes/interfaces inherited from interface java.util.Map |
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java.util.Map.Entry<K,V> |
Field Summary |
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Fields inherited from class oracle.jbo.common.ws.WSRowSetIteratorBase |
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mListeners, mMgmtListeners, mName |
Fields inherited from class oracle.jbo.common.ws.WSObject |
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mVariableOpers |
Fields inherited from class oracle.jbo.common.JboAbstractMap |
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MAP_NULL_VALUE |
Fields inherited from interface oracle.jbo.RowSet |
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COPY_OPT_ALL_ROWS, COPY_OPT_LIMIT_RANGE, FORWARD_ONLY, RANGE_PAGING, RANGE_PAGING_AUTO_POST, RANGE_PAGING_INCR, SCROLLABLE |
Fields inherited from interface oracle.jbo.RowIterator |
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ITER_MODE_LAST_PAGE_FULL, ITER_MODE_LAST_PAGE_PARTIAL, SLOT_BEFORE_FIRST, SLOT_BEYOND_LAST, SLOT_DELETED, SLOT_VALID |
Fields inherited from interface oracle.jbo.XMLInterface |
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XML_IGNORE_DEPTH_COUNT, XML_OPT_ALL_ROWS, XML_OPT_ASSOC_CONSISTENT, XML_OPT_CHANGES_ONLY, XML_OPT_LIMIT_RANGE, XML_PASSIVATION_USE |
Method Summary | |
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boolean |
cancelQuery()
Cancels a running query. |
void |
closeRowSet()
Closes the row set. |
void |
closeRowSetIterator()
Closes this row set iterator. |
RowSet |
createDetailRowSet(java.lang.String rsName,
java.lang.String linkDefName)
Creates a detail Row Set. |
RowSetIterator |
createRowSetIterator(java.lang.String name)
Creates an iterator for the row set. |
RowSet |
deepCopy(java.util.HashMap voAttrMap,
long options)
This method performs a copy of view rows and the Entity row references of the view rows that belong to this RowSet . |
void |
defineNamedWhereClauseParam(java.lang.String name,
java.lang.Object defaultValue,
int[] indices)
Defines a named bind variable to use with the view object's where-clause. |
void |
executeEmptyRowSet()
|
void |
executeQuery()
Executes the query. |
void |
executeQuery2(boolean resetCurrency,
boolean force,
boolean emptyRowSet)
|
RowSetIterator |
findOrCreateRowSetIterator(java.lang.String name)
|
RowSetIterator |
findRowSetIterator(java.lang.String name)
Gets the named row set iterator that was created at runtime for this row set. |
WSRowSetIteratorImpl |
findWSRowSetIterator(java.lang.String name)
|
byte |
getAccessMode()
|
AccTravDef |
getAccessorTraversalDef()
|
ApplicationModule |
getApplicationModule()
Gets the row set's application module that contains this row set. |
long |
getCappedRowCount(long cap)
|
long |
getDeferredEstimatedRowCount()
If this ViewObject is marked to not perform the estimatedRowCount query, then return -1 until either the estimatedRowCount is called and the count is known or the RowSet is fetched completely in which case the actual row count is known. |
RowSet[] |
getDetailRowSets()
Gets an array of detail Row Sets for which this Iterator is the master. |
long |
getEstimatedRowCount()
Counts the number of rows in the collection defined by the view object's query. |
java.lang.Object |
getImplObject()
|
int |
getIterMode()
Gets the current iteration mode. |
RowSetIterator[] |
getMasterRowSetIterators()
Return all controlling masters of this row set. |
java.lang.Object |
getNamedWhereClauseParam(java.lang.String name)
Gets the value of a named where-clause parameter for this row set. |
AttributeList |
getNamedWhereClauseParams()
Gets all the Name, value pairs of a named where-clause parameter of the viewObject. |
WSObject |
getParent()
|
java.util.Hashtable |
getProperties()
Gets the table of properties. |
java.lang.Object |
getProperty(java.lang.String hintName)
Retrieves the specified property, if it exists. |
java.lang.Object |
getProperty(java.lang.String hintName,
LocaleContext locale)
|
int |
getRangePagingCacheFactor()
|
int |
getRangeSize()
Gets the size of the Row Set Iterator range. |
int |
getRangeStart()
Gets the absolute row index of the first row in the Row Set Iterator range. |
RowSet |
getRowSet()
Gets the Row Set that this Iterator belongs to. |
RowSetIterator[] |
getRowSetIterators()
Gets all row set iterators that belong to this row set. |
java.lang.Object |
getSyncLock()
Gets the locking object for this Row Set Iterator. |
ViewObject |
getViewObject()
Gets the view object that owns this row set. |
java.lang.Object[] |
getWhereClauseParams()
Gets the bind variable values to be used with the view object's where-clause. |
boolean |
hasAccessorTraversalDef()
|
boolean |
isAssociationConsistent()
Returns the flag indicating whether association-consistent mode is on or not. |
boolean |
isDefaultRowSet()
Internal: Applications should not use this method. |
boolean |
isExecuted()
Returns true if the current ViewObject's query has been executed for this row set. |
boolean |
isExecuteQuery()
|
boolean |
isFetchComplete()
Tests if the query result set has been fetched to the end. |
boolean |
isForwardOnly()
Tests if the row set is constrained to sequential access. |
boolean |
isMaxFetchSizeExceeded()
Tests if the query result has been fetched to the end and the end was reached due to hitting the maxFetchSize limit |
boolean |
isOnLine()
|
boolean |
isRefreshDataModel()
|
boolean |
isRowValidation()
Gets the validation flag on this iterator. |
void |
markForError(java.lang.Exception ex,
boolean hasImplObject)
|
void |
markForExecuteQuery(boolean resetCurrency,
boolean force,
boolean emptyRowSet)
|
void |
navigated(NavigationEvent event)
Invoked when the current-row designation changes. |
void |
rangeRefreshed(RangeRefreshEvent event)
Invoked when the range changes. |
void |
rangeScrolled(ScrollEvent event)
Invoked when the range is scrolled. |
void |
readXML(Element elem,
int depthCount)
|
void |
readXML(Element elem,
int depthCount,
XSLStylesheet xslt)
|
void |
refreshDataModel()
|
void |
refreshDataModel2(boolean resetCurrency,
boolean force)
|
java.lang.Object |
refreshProperty(java.lang.String hintName)
Retrieves the specified property, if it exists. |
boolean |
removeMasterRowSetIterator(RowSetIterator masterRSI)
Removes a master row set iterator. |
void |
removeNamedWhereClauseParam(java.lang.String name)
Removes a named where-clause parameter. |
void |
requestEstimatedRowCount()
|
void |
resetExecuted()
This methods invalidates all the iterators on this rowset and marks the rowset as not executed. |
void |
rowDeleted(DeleteEvent event)
Invoked when a row has been deleted. |
void |
rowInserted(InsertEvent event)
Invoked when a row has been inserted. |
void |
rowUpdated(UpdateEvent event)
Invoked when an attribute of the row has been changed. |
int |
scrollRange(int amount)
Moves the Row Set Iterator range up or down a given number of rows. |
int |
scrollRangeTo(Row row,
int index)
Scrolls the range to place a given row at a given range index. |
void |
setAccessMode(byte mode)
Constrains the row access based on the following settings: |
void |
setAccessorTraversalByNamePaths(java.lang.String[] namePaths)
|
void |
setAccessorTraversalDef(AccTravDef accTravDef)
|
void |
setAssociationConsistent(boolean isAssociationConsistent)
Sets the association-consistent flag for this row set. |
void |
setForwardOnly(boolean isForwardOnly)
Constrains the row set to sequential access. |
void |
setImplObject(java.lang.Object o)
|
void |
setIterMode(int mode)
Sets the iteration mode for this Row Iterator. |
boolean |
setMasterRowSetIterator(RowSetIterator masterRSI)
Sets the master iterator. |
void |
setNamedWhereClauseParam(java.lang.String name,
java.lang.Object value)
Sets the value of a named where-clause parameter for this row set. |
void |
setNamedWhereClauseParams(AttributeList attrlist)
Sets the value of a named where-clause parameters for the entire viewObject. |
void |
setRangePagingCacheFactor(int f)
|
int |
setRangeSize(int size)
Modifies the size of the Row Set Iterator range. |
int |
setRangeStart(int start)
Moves the Row Set Iterator range. |
void |
setRowValidation(boolean flag)
Sets the validation flag on this iterator. |
void |
setWhereClauseParam(int index,
java.lang.Object value)
Specifies a single bind variable value to use with the view object's where-clause. |
void |
setWhereClauseParams(java.lang.Object[] values)
Specifies the bind variable values to use with the view object's where-clause. |
void |
skipNamedWhereClauseParam(java.lang.String name)
Skips the named where-clause parameter for this row set. |
Node |
writeXML(int depthCount,
long options)
Renders data in a canonical XML-format. |
Node |
writeXML(int depthCount,
long options,
XSLStylesheet xslt)
|
Node |
writeXML(long options,
java.util.HashMap voAttrMap)
Renders data in a canonical XML-format. |
Node |
writeXML(long options,
java.util.HashMap voAttrMap,
XSLStylesheet xslt)
|
Methods inherited from class oracle.jbo.common.ws.WSAMComponent |
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getMessageBundleClass, getResourceBundleDef |
Methods inherited from class oracle.jbo.common.ws.WSObject |
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closeObject, ensureVariableManager, get, getFullName, getId, getImageLoc, getVariableManager, hasVariables, isReadOnly, setName |
Methods inherited from class oracle.jbo.common.JboAbstractMap |
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entrySet, equals, hashCode, internalGet, internalPut, put, setThrowIfPropertyNotFoundOnGet |
Methods inherited from class java.util.AbstractMap |
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clear, clone, containsKey, containsValue, isEmpty, keySet, putAll, remove, size, toString, values |
Methods inherited from class java.lang.Object |
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finalize, getClass, notify, notifyAll, wait, wait, wait |
Methods inherited from interface oracle.jbo.RowSet |
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getName |
Methods inherited from interface oracle.jbo.RowSetIterator |
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addManagementListener, getEstimatedRangePageCount, getFilteredRows, getFilteredRowsInRange, getNextRangeSet, getPreviousRangeSet, isNameGenerated, removeManagementListener, scrollToRangePage |
Methods inherited from interface oracle.jbo.NavigatableRowIterator |
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addListener, removeListener |
Methods inherited from interface oracle.jbo.VariableManagerOwnerBase |
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ensureVariableManager, getMessageBundleClass, getResourceBundleDef, getVariableManager, hasVariables |
Method Detail |
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public boolean isOnLine()
public WSObject getParent()
getParent
in class WSObject
public void setAccessorTraversalByNamePaths(java.lang.String[] namePaths)
setAccessorTraversalByNamePaths
in interface WSRowSet
public AccTravDef getAccessorTraversalDef()
getAccessorTraversalDef
in interface WSRowSet
public void setAccessorTraversalDef(AccTravDef accTravDef)
setAccessorTraversalDef
in interface WSRowSet
public boolean hasAccessorTraversalDef()
hasAccessorTraversalDef
in interface WSRowSet
public java.lang.Object getImplObject()
getImplObject
in class WSObject
public void setImplObject(java.lang.Object o)
setImplObject
in class WSObject
public void markForError(java.lang.Exception ex, boolean hasImplObject)
markForError
in class WSObject
public boolean isDefaultRowSet()
isDefaultRowSet
in interface RowSet
public boolean setMasterRowSetIterator(RowSetIterator masterRSI)
RowSet
setMasterRowSetIterator
in interface RowSet
masterRSI
- the new master row set iterator for this row set.
true
if the operation succeeded.public ViewObject getViewObject()
RowSet
If this row set is the result of calling a view link accessor,
the returned view object is an internal view object.
indicates whether
the view object is internal or not. Even if a view link is
defined between the master and detail view object, and even
if an instance of them are included in the application module's
data model, calling the view link by default uses a separate
view object instance from the one in the AM's data model.
To access the view link accessor's ViewObject, use the following
code snippet (assuming that the detail side is called "MyDetail"):
ViewObject.isInternal()
RowSet detailRS = (RowSet) masterViewRow.getMyDetail(); ViewObject detailVO = detailRS.getViewObject();
getViewObject
in interface RowSet
public void setWhereClauseParams(java.lang.Object[] values)
RowSet
Setting the where-clause bind values through this method
does not automatically execute the query. You must call
to apply the new bind
values.
RowSet.executeQuery()
setWhereClauseParams
in interface RowSet
values
- an array of bind values. If the view object
is using the JDBC style bindings ("?"
for bind
variable), values[n]
is bound to
the bind variable that appears in the n-th
order (0 based indexing). If the view object
is using the Oracle style bindings (":1", ":2",
etc.
for bind variable), values[n]
is
bound to the bind variable :(n+1)
, i.e.,
values[0]
is bound to :1
,
values[1]
is bound to :2
, etc.public void setWhereClauseParam(int index, java.lang.Object value)
RowSet
Setting the where-clause bind values through this method
does not automatically execute the query. You must call
to apply the new bind
values.
RowSet.executeQuery()
setWhereClauseParam
in interface RowSet
index
- the index identifying the bind variable. If the view object
is using the JDBC style bindings ("?"
for bind
variable), value
is bound to
the bind variable that appears in the index-th
order (0 based indexing). If the view object
is using the Oracle style bindings (":1", ":2",
etc.
for bind variable), value
is
bound to the bind variable :(index+1)
.
If index
is 0, value
is bound to :1
.
If index
is 1, value
is bound to :2
.value
- the bind variable value.public void defineNamedWhereClauseParam(java.lang.String name, java.lang.Object defaultValue, int[] indices)
RowSet
This named where-clause parameter will be defined as a variable on the view object. That is, if a named where-clause parameter is defined through one row set, all other row sets that belongs to the same parent view object will "see" that parameter.
Through the defaultValue
, one can specify the
default value for this where-clause parameter. If no
default value is supplied, null
will be used
as the parameter value.
The indices
parameter specifies where-clause
parameter indices into which this named parameter will be
bound. The same value can be bound into multiple indices.
For example, if { 1, 2 }
is specified for
indices
, the value will be bound for where-clause
parameter indices of 1 and 2. I.e., this parameter will produce
setWhereClauseParam(1, value)
and
setWhereClauseParam(2, value)
.
This method can be invoked to redefine an existing named where-clause paramter (to change the default value and the indices) only if the named parameter is found on the view object. If the named parameter/variable is found on one of the parent objects, a new where-clause parameter definition is still added to the view object.
When redefining, a check is made to ensure that the existing variable
has no kind specification (null
) or is of the
"where"
kind (which means that the existing variable
is a where-clause parameter). If not, an InvalidParamException
is thrown.
Defining a named where-clause parameter
does not automatically execute the query. You must call
to apply the new bind
value.
RowSet.executeQuery()
defineNamedWhereClauseParam
in interface RowSet
name
- the name of the where-clause parameter.defaultValue
- specifies the default value for this where-clause
parameter. This default value can be overridden
through a call to setNamedWhereClauseParam()
.indices
- where-clause indices into which this parameter value should
be bound. See above.public void removeNamedWhereClauseParam(java.lang.String name)
RowSet
This method removes previously defined named where-clause parameter.
A check is made to ensure that the variable being removed is a
where-clause parameter (variable kind = "where"
). If not,
an InvalidParamException
is thrown.
If the named where-clause parameter is found but it does not belong to the view object
that owns this row set, an InvalidOperException
is thrown.
This means one is disallowed from removing a named where-clause parameter
that belongs to the View definition, for example.
Removing a named where-clause parameter
does not automatically execute the query. You must call
for the removal to take
effect.
RowSet.executeQuery()
removeNamedWhereClauseParam
in interface RowSet
name
- the name of the where-clause parameter to remove.public java.lang.Object getNamedWhereClauseParam(java.lang.String name)
RowSet
If the view object owns multiple row sets, each row set may have its own (different) named where-clause parameter value.
getNamedWhereClauseParam
in interface RowSet
name
- the name of the where-clause parameter.public void setNamedWhereClauseParams(AttributeList attrlist)
RowSet
Setting a named where-clause parameter
does not automatically execute the query. You must call
to apply the new bind
value.
RowSet.executeQuery()
setNamedWhereClauseParams
in interface RowSet
attrlist
- is a Name, value pair of bind variables.public AttributeList getNamedWhereClauseParams()
RowSet
It uses the method getNamedWhereClauseParam to return all the name,value pairs from VariableValueManager.
getNamedWhereClauseParams
in interface RowSet
public void setNamedWhereClauseParam(java.lang.String name, java.lang.Object value)
RowSet
If the view object owns multiple row sets, each row set may have its own (different) named where-clause parameter value.
Setting a named where-clause parameter
does not automatically execute the query. You must call
to apply the new bind
value.
RowSet.executeQuery()
setNamedWhereClauseParam
in interface RowSet
name
- the name of the where-clause parameter.value
- the where-clause parameter value for this row set.public void skipNamedWhereClauseParam(java.lang.String name)
RowSet
Skipping a named where-clause parameter
does not automatically execute the query. You must call
for the skip to take
effect.
RowSet.executeQuery()
skipNamedWhereClauseParam
in interface RowSet
name
- the name of the where-clause parameter.public java.lang.Object[] getWhereClauseParams()
RowSet
getWhereClauseParams
in interface RowSet
public void executeQuery()
RowSet
executeQuery
in interface RowSet
public void executeEmptyRowSet()
executeEmptyRowSet
in interface RowSet
public void executeQuery2(boolean resetCurrency, boolean force, boolean emptyRowSet)
executeQuery2
in interface WSRowSet
public void markForExecuteQuery(boolean resetCurrency, boolean force, boolean emptyRowSet)
public boolean cancelQuery()
RowSet
cancelQuery
in interface RowSet
false
if the JDBC statement is not executing a query.public boolean isExecuteQuery()
isExecuteQuery
in interface WSRowSet
public boolean isRefreshDataModel()
isRefreshDataModel
in interface WSRowSet
public void refreshDataModel()
refreshDataModel
in interface WSRowSet
public void refreshDataModel2(boolean resetCurrency, boolean force)
refreshDataModel2
in interface WSRowSet
public boolean isExecuted()
RowSet
isExecuted
in interface RowSet
true
if query has been executed.public RowSetIterator createRowSetIterator(java.lang.String name)
RowSet
createRowSetIterator
in interface RowSet
name
- the name to be given to the iterator.
this
.public RowSetIterator[] getRowSetIterators()
RowSet
getRowSetIterators
in interface RowSet
public RowSetIterator findRowSetIterator(java.lang.String name)
RowSet
findRowSetIterator
in interface RowSet
name
- a row set iterator name. If null
, it returns the
the row set.
null
if the named row set iterator is not
not found.public RowSetIterator findOrCreateRowSetIterator(java.lang.String name)
findOrCreateRowSetIterator
in interface WSRowSet
public WSRowSetIteratorImpl findWSRowSetIterator(java.lang.String name)
public boolean removeMasterRowSetIterator(RowSetIterator masterRSI)
RowSet
removeMasterRowSetIterator
in interface RowSet
masterRSI
- the iterator to be removed.
true
if masterRS
was found,
false
otherwise.public RowSetIterator[] getMasterRowSetIterators()
RowSet
getMasterRowSetIterators
in interface RowSet
public ApplicationModule getApplicationModule()
RowSet
Strictly speaking, a row set belongs to a view object and the view object to an application module. This method returns the application module that cotains the view object, which contains this row set.
If this row set is the result of calling a View Link accessor,
this row set belongs to an internal view object (see
).
Such an internal view object belongs to the root application module.
Put differently, if you call this method on a row set which is the result
of calling a View Link accessor, it will return the root application module.
ViewObject.isInternal()
getApplicationModule
in interface RowSet
ApplicationModule
to which this row set belongs.public void requestEstimatedRowCount()
requestEstimatedRowCount
in interface WSRowSet
public long getEstimatedRowCount()
RowSet
This method uses a "SELECT COUNT(1) FROM (<query-statement>)" query to obtained the initial count. After that, changes to row count (such as insertion and deletion of rows) is kept up to date.
However, since the row counting query and the query to retrieve
actual rows are issued at two different times, it is possible for
the accurate count to change between these two points.
This is why this method is named getEstimatedRowCount()
.
getEstimatedRowCount
in interface RowSet
public long getDeferredEstimatedRowCount()
RowSet
getDeferredEstimatedRowCount
in interface RowSet
public long getCappedRowCount(long cap)
getCappedRowCount
in interface RowSet
public boolean isForwardOnly()
RowSet
isForwardOnly
in interface RowSet
true
if the row set is restricted to forward-only processing.RowSet.setForwardOnly(boolean)
public void setForwardOnly(boolean isForwardOnly)
RowSet
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.
setForwardOnly
in interface RowSet
isForwardOnly
- true
restricts the row set to forward-only processing,
false
otherwise.public byte getAccessMode()
getAccessMode
in interface RowSet
RowSet.setAccessMode(byte)
public void setAccessMode(byte mode)
RowSet
Switching access modes for a rowset will not take effect until the next explicit call to executeQuery. Switching accessmode back to SCROLLABLE from any other mode is not allowed.
setAccessMode
in interface RowSet
mode
- One of the four enumerated values RowSet.SCROLLABLE
,
RowSet.FORWARD_ONLY
, RowSet.RANGE_PAGING
,
RowSet.RANGE_PAGING_AUTO_POST
.public int getRangePagingCacheFactor()
getRangePagingCacheFactor
in interface RowSet
public void setRangePagingCacheFactor(int f)
setRangePagingCacheFactor
in interface RowSet
public void setAssociationConsistent(boolean isAssociationConsistent)
RowSet
Association-consistent mode allows the user to see new rows created/inserted through another view object. Note that this mode is effective only for view objects that are entity based. If the view object has no entity base, this mode has no effect.
Suppose we have an entity named E. Suppose two view objects, V1 and V2 are based on E. (V1 and V2 do not have to come from the same view definition.) Suppose the user creates a new row through V1. This creates an instance of E as well. The new entity row is registered only when its primary key is attribute set. At this time, an event is sent out to all view objects based on E, i.e., V1 and V2.
When V2 receives this event, it enumerates through all its
collections (essentially its row sets--strictly speaking its
query collections) looking for those whose
isAssociationConsistent()
value is true.
For each row set whose flag value is true (say R2), it checks to see
if it has any view row mapped to the new entity row. If
not, it create a new view row and maps it to the new entity row.
A rowInserted
event fires.
Thus, from the user's view point, R2 is "seeing" the new row,
although the row has not yet been posted to database. Hence,
setting this flag to true
enables the user to
see new rows before the row is posted/queried when the view
object is entity based.
If flag is false or if the view object is not entity based,
the user needs to post the new row through
and requery
the row set through Transaction.postChanges()
to see the new row.
RowSet.executeQuery()
The default value for this flag can be globally controlled
through the jbo.viewlink.consistent
property.
Its value can be true
, false
, or
DEFAULT
. If the property is not specified,
the default value is DEFAULT
.
A similar property jbo.assoc.consistent
controls
whether the new-row-appearing behavior should be supported
for row sets returned from entity association accessor calls.
For jbo.assoc.consistent
, supported values are
true
or false
.
If the property value is set to true
, all
row sets will have true
for its initial
isAssociationConsistent()
value.
If the property value is set to false
, all
row sets will have false
for its initial value.
If the property value is set to DEFAULT
(which
is the default), the view object will use the following logic
to compute its initial isAssociationConsistent()
value:
if the view object has multiple entity bases that are updateable,
then the initial value is false
. If the view object
has a where-clause, then the initial value is false
.
Otherwise, it is true.
Once this method is called to set the flag value manually, neither the property setting nor the view object's initial flag value has an effect.
setAssociationConsistent
in interface RowSet
isAssociationConsistent
- indicates whether association-consistency
should be on or not.public boolean isAssociationConsistent()
RowSet
isAssociationConsistent
in interface RowSet
true
if un-posted new rows are to appear,
false
otherwise. This flag has no effect if
the view object is not entity based.RowSet.setAssociationConsistent(boolean)
public void closeRowSet()
RowSet
closeRowSet
removes
this row set from the master row set iterator.
closeRowSet
in interface RowSet
public boolean isFetchComplete()
RowSet
isFetchComplete
in interface RowSet
true
if the result set has been
fetched to the end.public boolean isMaxFetchSizeExceeded()
RowSet
isMaxFetchSizeExceeded
in interface RowSet
true
if the result set has been
fetched to the maxFetchSize limit and there
are still more rows in the database.public java.lang.Object getProperty(java.lang.String hintName)
Properties
getProperty
in interface Properties
hintName
- Property name.
null
.public java.lang.Object getProperty(java.lang.String hintName, LocaleContext locale)
getProperty
in interface Properties
public java.lang.Object refreshProperty(java.lang.String hintName)
Properties
getProperty
.
refreshProperty
in interface Properties
hintName
- Property name.
null
.public java.util.Hashtable getProperties()
Properties
getProperties
in interface Properties
public Node writeXML(int depthCount, long options)
XMLInterface
ViewObjectImpl
and
ViewRowImpl
implement this method to render
data in XML.
Use this method whenever data is required in XML format, either to present a UI (after converting XML data into some HTTP format using a stylesheet) or to pass the data as payload for messages via JMS.
The depthcount parameter represents to what level the rendering should recurse. A depthcount of zero (0) means do not traverse any View Links while rendering. One (1) means traverse the View Links on this object but no View Links thereafter, and so on.
The options parameter represents a set of bit flags that will control the writeXML behavior. The following bit flags have been defined:
EntityImpl
.
writeXML
in interface XMLInterface
depthCount
- represents to what level the rendering should recurse.options
- a set of bit flags that will control the writeXML
behavior.public Node writeXML(int depthCount, long options, XSLStylesheet xslt)
writeXML
in interface XMLInterface
public void readXML(Element elem, int depthCount)
readXML
in interface XMLInterface
public void readXML(Element elem, int depthCount, XSLStylesheet xslt)
readXML
in interface XMLInterface
public Node writeXML(long options, java.util.HashMap voAttrMap)
XMLInterface
ViewObjectImpl
and
ViewRowImpl
implement this method to render
data in XML.
Use this method whenever data is required in XML format, either to present a UI (after converting XML data into some HTTP format using a stylesheet) or to pass the data as payload for messages via JMS.
The options parameter represents a set of bit flags that will control the writeXML behavior. The following bit flags have been defined:
EntityImpl
. The voAttrMap parameter represents in a hashmap, the mapping between a given ViewObject's definition type and the corresponding Attributes/accessors to render. A null entry in the hashmap means, render all attributes and accessors of that viewobject type.
writeXML
in interface XMLInterface
options
- a set of bit flags that will control the writeXMLvoAttrMap
- HashMap containing Definition names of ViewObjects and an
array of AttributeDef to render for a ViewObject of that definition type.public Node writeXML(long options, java.util.HashMap voAttrMap, XSLStylesheet xslt)
writeXML
in interface XMLInterface
public RowSet getRowSet()
RowSetIterator
getRowSet
in interface RowSetIterator
getRowSet
in class WSRowSetIteratorBase
public RowSet[] getDetailRowSets()
RowSetIterator
In a master-detail relationship in an Application Module, the master in reality is a Row Set Iterator. (Though we often speak of master View Object, in reality, it is the Iterator behind the View Object which is playing the role of the master). Whenever the currency of this master Iterator moves, the detail Row Sets are re-executed to show related Rows.
Calling this method returns an array of Row Sets that are related to this Iterator as detail Row Sets.
getDetailRowSets
in interface RowSetIterator
getDetailRowSets
in class WSRowSetIteratorBase
RowSet
.public RowSet createDetailRowSet(java.lang.String rsName, java.lang.String linkDefName)
RowSetIterator
RowSetIterator.getDetailRowSets()
for explanation of detail Row Sets.
This method creates a new detail Row Set for this Iterator.
createDetailRowSet
in interface RowSetIterator
createDetailRowSet
in class WSRowSetIteratorBase
rsName
- the name of the new detail Row Set.linkDefName
- the name of a View Link definition.
This View Link chooses the relationship in which
this Iterator is the master and the new Row Set
is the detail. It must be a fully qualified
name (including the package name).
public void closeRowSetIterator()
RowSetIterator
closeRowSetIterator
closes all detail row sets.
After that, it fires a RowSetManagementListener.iteratorClosed()
event to its RowSetManagementListener's
.
Then, it deregisters this row set iterator from the owning row set, and deregisters all its listeners.
closeRowSetIterator
in interface RowSetIterator
closeRowSetIterator
in class WSRowSetIteratorBase
public java.lang.Object getSyncLock()
RowSetIterator
ApplicationModule.getSyncLock()
for details.
getSyncLock
in interface RowSetIterator
getSyncLock
in class WSRowSetIteratorBase
public int setRangeSize(int size)
RowIterator
This method takes effect when the next set of data is fetched. For an example usage of setRangeSize, see setRangeStart.
setRangeSize
in interface RowIterator
setRangeSize
in class WSRowSetIteratorBase
size
- the new number of rows in the iterator range. Size of
0 is treated same as 1. Size < -1 is treated same as -1.
RowIterator.setRangeStart(int)
public int getRangeSize()
RowIterator
getRangeSize
in interface RowIterator
getRangeSize
in class WSRowSetIteratorBase
public int getRangeStart()
RowIterator
The absolute index is 0-based, and is the row's index relative to the entire result set.
getRangeStart
in interface RowIterator
getRangeStart
in class WSRowSetIteratorBase
public int setRangeStart(int start)
RowIterator
Note that the index is 0-based. When you call setRangeStart(1), the range start will be positioned at the second table row.
Another behavior of setRangeStart (and also setRangeSize) is that it tries to position the range, so as to fill up the range as much as possible. For example, assume you have View Object vo focused on a table with four rows (A, B, C, D), and you execute the following code:
vo.setRangeStart(4); vo.setRangeSize(3); Row[] rows = vo.getAllRowsInRange();
In this case, rows contains the last 3 rows (B, C, D). When you call setRangeStart(4), it will try to position you at row 4. Since the index is 0-based, it finds that there is no row. Since the default range size is 1, it will position you to the last row (row index 3).
Then, when you call getRangeSize(3), it tries to fill up the range from the bottom. This is why you get (B, C, D).
setRangeStart
in interface RowIterator
setRangeStart
in class WSRowSetIteratorBase
start
- the absolute index of the new first row in the Row Set Iterator range.public int scrollRange(int amount)
RowIterator
scrollRange
in interface RowIterator
scrollRange
in class WSRowSetIteratorBase
amount
- the number of rows to scroll.
A negative value scrolls upward.
public int scrollRangeTo(Row row, int index)
RowIterator
scrollRangeTo
in interface RowIterator
scrollRangeTo
in class WSRowSetIteratorBase
row
- the row.index
- the range index at which the row is to be found.
public void setRowValidation(boolean flag)
RowIterator
setRowValidation
in interface RowIterator
setRowValidation
in class WSRowSetIteratorBase
flag
- Whether to turn row validation off or not.public boolean isRowValidation()
RowIterator
isRowValidation
in interface RowIterator
isRowValidation
in class WSRowSetIteratorBase
public int getIterMode()
RowIterator
getIterMode
in interface RowIterator
getIterMode
in class WSRowSetIteratorBase
public void setIterMode(int mode)
RowIterator
setIterMode
in interface RowIterator
setIterMode
in class WSRowSetIteratorBase
mode
- should be ITER_MODE_LAST_PAGE_PARTIAL if the iteration mode is
to be "partial-last-page", ITER_MODE_LAST_PAGE_FULL if it
is to be "full-last-page".public void rangeRefreshed(RangeRefreshEvent event)
RowSetListener
rangeRefreshed
in interface RowSetListener
event
- a description of the new ranges.public void rangeScrolled(ScrollEvent event)
RowSetListener
rangeScrolled
in interface RowSetListener
event
- a description of the new range.public void rowInserted(InsertEvent event)
RowSetListener
rowInserted
in interface RowSetListener
event
- a description of the new Row object.public void rowDeleted(DeleteEvent event)
RowSetListener
rowDeleted
in interface RowSetListener
event
- a description of the deleted Row object.public void rowUpdated(UpdateEvent event)
RowSetListener
rowUpdated
in interface RowSetListener
event
- a description of the modified Row object.public void navigated(NavigationEvent event)
RowSetListener
navigated
in interface RowNavigationListener
navigated
in interface RowSetListener
event
- a description of the new and previous current rows.public RowSet deepCopy(java.util.HashMap voAttrMap, long options)
RowSet
RowSet
. To avoid unique key constraint
violations, the values of the key attributes are not copied.
voAttrMap
attribute could be used to
specify a subset of the attributes that need to be copied.
The map consists of name value pairs of the view object name
and its attributes.
By including the name of the Accessor in the voAttrMap
as a key, deep copy could be used to copy rows obtained by
traversing the view links.
Example 1: Deep copy a OrderLine RowSet copying attributes value of Item ID, Order ID and Description of a OrderLine view row.
voOrderLine = myAM.findViewObject("OrderLine"); attrFilter = new HashMap(); filterAttrDefs = new ArrayList(); filterAttrDefs.add("ItemID"); filterAttrDefs.add("OrderID"); filterAttrDefs.add("Description"); attrFilter.put(voOrderLine.getDefFullName(), (String[]) filterAttrDefs.toArray(new String[filterAttrDefs.size()])); RowSet rsOrderLinesCopy = rsOrderLines.deepCopy(attrFilter, RowSet.COPY_OPT_ALL_ROWS);Row API could be used to set the primary keys on the newly created rows and eventually the transaction commit would insert the rows in the database.
Example 2: Deep copy a set of Orders and their Lines. Copy the Customer attribute from an Order and Item ID, Description from Order Lines.
voOrder = myAM.findViewObject("Order"); voOrderLine = myAM.findViewObject("OrderLine"); attrFilter = new HashMap(); filterAttrDefs = new ArrayList(); filterAttrDefs.add("Customer"); // The name of the Order Line Accessor filterAttrDefs.add("Lines"); attrFilter.put(voOrder.getDefFullName(), (String[]) filterAttrDefs.toArray(new String[filterAttrDefs.size()])); filterAttrDefs = new ArrayList(); filterAttrDefs.add("ItemID"); filterAttrDefs.add("Description"); attrFilter.put(voOrderLine.getDefFullName(), (String[]) filterAttrDefs.toArray(new String[filterAttrDefs.size()])); RowSet rsCopy = rs.deepCopy(attrFilter, RowSet.COPY_OPT_ALL_ROWS);For each Order row in the copied rowset the accessor could be used to get its Order Lines. If there is Cascade update set on the association, setting the Order number on an Order row would update the foreign key in its Order Line rows.
deepCopy
in interface RowSet
voAttrMap
- a name value pair of a View Object name and an array of its
AttributeDef
objects or an array of attribute names.
A null
value for this parameter results in copying
all the non-key attribute values of this RowSet
.
View Links are not traversed for a null
value.options
- valid values are RowSet.COPY_OPT_ALL_ROWS
and RowSet.COPY_OPT_LIMIT_RANGE
.
RowSet
public void resetExecuted()
RowSet
resetExecuted
in interface RowSet
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Oracle Fusion Middleware Java API Reference for Oracle ADF Model 11g Release 1 (11.1.1) E10653-04 |
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