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

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