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public interface ITable
Provides access to members that return information about and manage tables.
The ITable interface is the principal interface for working with tables. It inherits from IClass and provides additional methods that allow you to query, select, insert, update and delete rows from the table.
All modifications to rows in the table through this interface will preserve object behavior associated with the table. For example, using DeleteSearchedRows on a table that is the origin of a composite relationship will delete rows from the related object class.
| Method Summary | |
|---|---|
IRow |
createRow()
Creates a row in the database with a system assigned object ID and null property values. |
IRowBuffer |
createRowBuffer()
Creates a row buffer that can be used with an insert cursor. |
void |
deleteSearchedRows(IQueryFilter queryFilter)
Delete the Rows in the database selected by the specified query. |
IRow |
getRow(int oID)
The row from the database with the specified object ID. |
ICursor |
getRows(Object oids,
boolean recycling)
The cursor of rows based on a set of object ids. |
ICursor |
insert(boolean useBuffering)
Returns a cursor that can be used to insert new Rows. |
ICursor |
ITable_search(IQueryFilter queryFilter,
boolean recycling)
An object cursor that can be used to fetch row objects selected by the specified query. |
int |
rowCount(IQueryFilter queryFilter)
The number of Rows selected by the specified query. |
ISelectionSet |
select(IQueryFilter queryFilter,
int selType,
int selOption,
IWorkspace selectionContainer)
A selection that contains the object ids selected by the specified query. |
ICursor |
update(IQueryFilter queryFilter,
boolean recycling)
Returns a cursor that can be used to update Rows selected by the specified query. |
void |
updateSearchedRows(IQueryFilter queryFilter,
IRowBuffer buffer)
Update the Rows in the database selected by the specified query. |
| Methods inherited from interface com.esri.arcgis.geodatabase.IClass |
|---|
addField, addIndex, deleteField, deleteIndex, findField, getCLSID, getEXTCLSID, getExtension, getExtensionProperties, getFields, getIndexes, getOIDFieldName, isHasOID |
| Method Detail |
|---|
IRow createRow()
throws IOException,
AutomationException
The CreateRow method creates a new row in the underlying database with a system assigned object id value. A row object representing the created row is returned to the caller. The row object returned has the system assigned object ID as the value of the OIDField. All other fields are initialized to null values if they can be made null and to built-in default values appropriate to the type of the field if they cannot be made null.
The caller is responsible for setting the desired field values into the row and calling the Store method on the row. If the table represents an object class with subtypes, then it is the caller’s responsibility to set the default subtype code into the row and call the InitDefaultValues method on the row before storing, if that is the desired result. For tables without object behavior, insert cursors offer a more efficient way for inserting new rows.
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
IRow getRow(int oID)
throws IOException,
AutomationException
The GetRow method returns an existing row object, given its object ID value. The caller can query the returned row object for additional object specific interfaces. The retrieved row may be modified; calling Store on the row object after changing it will trigger messages to related objects and will mark the row for committing to the database.
oID - The oID (in)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
ICursor getRows(Object oids,
boolean recycling)
throws IOException,
AutomationException
The GetRows method returns a cursor that may be used to retrieve a set of rows specified by the input array of object id values. See the description of the Search method to understand the meaning of the recycling parameter. It is far more efficient to retrieve a set of rows using the GetRows method than it is to retrieve each individual row using the GetRow method. The retrieved rows may be modified; Store should be called on the row objects after changing them.
The oids parameter should be passed an integer array. For example:
// Get a recycling cursor for the OID array.
int[] oids = new int[] { 10844, 10853, 10871 };
ICursor cursor = table.getRows(oids, true);
oids - A Variant (in)recycling - The recycling (in)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
IRowBuffer createRowBuffer()
throws IOException,
AutomationException
The CreateRowBuffer method creates a new row buffer object in memory and returns it to the caller. No row is created in the database. The returned row buffer does not have an object ID value. The caller can set values into the row buffer and use it as an argument to the InsertRow method on an insert cursor; the latter is obtained by calling the Insert method on the Table.
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
void updateSearchedRows(IQueryFilter queryFilter,
IRowBuffer buffer)
throws IOException,
AutomationException
This method will edit the rows matching the query filter's constraints. The values in each row will be replaced with the corresponding field's value in the provided row buffer. The fields being edited should be specified in the query filter's SubFields property. If the row buffer contains null values, and the SubFields property is not properly set, the row's values will be overwritten with the row buffer's null values.
queryFilter - A reference to a com.esri.arcgis.geodatabase.IQueryFilter (in)buffer - A reference to a com.esri.arcgis.geodatabase.IRowBuffer (in)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
void deleteSearchedRows(IQueryFilter queryFilter)
throws IOException,
AutomationException
queryFilter - A reference to a com.esri.arcgis.geodatabase.IQueryFilter (in)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
int rowCount(IQueryFilter queryFilter)
throws IOException,
AutomationException
queryFilter - A reference to a com.esri.arcgis.geodatabase.IQueryFilter (in)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
ICursor ITable_search(IQueryFilter queryFilter,
boolean recycling)
throws IOException,
AutomationException
queryFilter - A reference to a com.esri.arcgis.geodatabase.IQueryFilter (in)recycling - The recycling (in)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
ICursor update(IQueryFilter queryFilter,
boolean recycling)
throws IOException,
AutomationException
The Update method returns an update cursor that can be used to update or delete rows. It offers somewhat faster performance than multiple calls to Store or Delete on row objects fetched using a non-recycling search cursor for tables storing simple rows and simple features. There is no difference in performance for complex objects and features.
When using cursors within an edit session, they should always be scoped to edit operations. In other words, a cursor should be created after an edit operation has begun and should not be used once that edit operation has been stopped or aborted.
queryFilter - A reference to a com.esri.arcgis.geodatabase.IQueryFilter (in)recycling - The recycling (in)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
ICursor insert(boolean useBuffering)
throws IOException,
AutomationException
The Insert method returns an insert cursor that can be used to bulk insert rows. It offers significantly faster performance than multiple calls to CreateRow and Store for tables storing simple rows and simple features (that is, for tables whose CLSID is esriGeoDatabase.Row, esriGeoDatabase.Object, or esriGeoDatabase.Feature).
Insert cursors on tables containing complex objects use the CreateRow and Store methods to achieve polymorphism, and there is no difference in performance in these cases.
When using cursors within an edit session, they should always be scoped to edit operations. In other words, a cursor should be created after an edit operation has begun and should not be used once that edit operation has been stopped or aborted.
useBuffering - The useBuffering (in)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
ISelectionSet select(IQueryFilter queryFilter,
int selType,
int selOption,
IWorkspace selectionContainer)
throws IOException,
AutomationException
The Select method returns a selection set that holds either row IDs or row objects from the Table depending on the selection option. Multiple selection sets can be created on the same table. It is up to a client application or object to keep a reference on created selections and use them as appropriate. For example, a FeatureLayer creates and uses selections on a FeatureClass (a type of Table).
The selType parameter determines the type of selection set that will be created: an ID set, a snapshot, or a hybrid. See the ISelectionSet interface for a comparison of the three types.
When calling Select the selectionContainer parameter is no longer required. A null value should be passed as this parameter.
queryFilter - A reference to a com.esri.arcgis.geodatabase.IQueryFilter (in)selType - A com.esri.arcgis.geodatabase.esriSelectionType constant (in)selOption - A com.esri.arcgis.geodatabase.esriSelectionOption constant (in)selectionContainer - A reference to a com.esri.arcgis.geodatabase.IWorkspace (in)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
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