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java.lang.Objectcom.mckoi.database.ViewManager
public class ViewManager
A DatabaseConnection view manager. This controls adding, updating, deleting, and processing views inside the system view table.
Method Summary | |
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QueryPlanNode |
createViewQueryPlanNode(TableName view_name)
Returns a freshly deserialized QueryPlanNode object for the given view object. |
void |
defineView(ViewDef view,
SQLQuery query,
User user)
Defines a view. |
boolean |
deleteView(TableName view_name)
Deletes the view with the given name, or returns false if no entries were deleted from the view table. |
boolean |
viewExists(TableName view_name)
Returns true if the view with the given name exists. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
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public boolean viewExists(TableName view_name)
public void defineView(ViewDef view, SQLQuery query, User user) throws DatabaseException
view
- information that defines the view.query
- the query that forms the view.user
- the user that owns this view being defined.
DatabaseException
public boolean deleteView(TableName view_name) throws DatabaseException
DatabaseException
public QueryPlanNode createViewQueryPlanNode(TableName view_name)
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