org.apache.derby.catalog

Interface DependableFinder

All Known Implementing Classes:

DDColumnDependableFinder, DDdependableFinder

public interface DependableFinder

A DependableFinder is an object that can find an in-memory Dependable, given the Dependable's ID.

The DependableFinder is able to write itself to disk and, once read back into memory, locate the in-memory Dependable that it represents.

DependableFinder objects are stored in SYS.SYSDEPENDS to record dependencies between database objects.

Method Summary

Modifier and Type	Method and Description
Dependable	getDependable(DataDictionary dd, UUID dependableObjectID) Get the in-memory object associated with the passed-in object ID.
java.lang.String	getSQLObjectType() The name of the class of Dependables as a "SQL Object" which this Finder can find.

Method Detail

getDependable

Dependable getDependable(DataDictionary dd,
                         UUID dependableObjectID)
                  throws StandardException

Get the in-memory object associated with the passed-in object ID.

Parameters:

dd - DataDictionary to use for lookup.

dependableObjectID - the ID of a Dependable. Used to locate that Dependable.

Returns:

the associated Dependable

Throws:

StandardException - thrown if the object cannot be found or on error o

getSQLObjectType

java.lang.String getSQLObjectType()

The name of the class of Dependables as a "SQL Object" which this Finder can find. This is a value like "Table" or "View". Every DependableFinder can find some class of Dependables.

Returns:

String type of the "SQL Object" which this Finder can find.

See Also:

Dependable