package org.reldb.rel.v0.storage.catalog;
import org.reldb.rel.v0.generator.SelectAttributes;
import org.reldb.rel.v0.storage.RelDatabase;
import org.reldb.rel.v0.storage.relvars.RelvarGlobal;
import org.reldb.rel.v0.storage.relvars.RelvarHeading;
import org.reldb.rel.v0.types.*;
import org.reldb.rel.v0.types.builtin.TypeCharacter;
import org.reldb.rel.v0.types.builtin.TypeInteger;
public class RelvarTypesMetadata extends RelvarSystemMetadata {
public static final long serialVersionUID = 0;
static Heading getTypeReferenceHeading() {
Heading subtypeHeading = new Heading();
subtypeHeading.add("Name", TypeCharacter.getInstance());
return subtypeHeading;
}
static Heading getNewHeading() {
Heading heading = new Heading();
heading.add("Name", TypeCharacter.getInstance());
heading.add("Definition", TypeCharacter.getInstance());
heading.add("Owner", TypeCharacter.getInstance());
heading.add("CreationSequence", TypeInteger.getInstance());
heading.add("Language", TypeCharacter.getInstance());
heading.add("Subtypes", new TypeRelation(getTypeReferenceHeading()));
heading.add("Supertypes", new TypeRelation(getTypeReferenceHeading()));
return heading;
}
static RelvarHeading getNewKeyDefinition() {
SelectAttributes attributes = new SelectAttributes();
attributes.add("Name");
RelvarHeading keyDefinition = new RelvarHeading(getNewHeading());
keyDefinition.addKey(attributes);
return keyDefinition;
}
public RelvarTypesMetadata(RelDatabase database, String name) {
super(database, name, getNewKeyDefinition());
}
public RelvarGlobal getRelvar(String name, RelDatabase database) {
return new RelvarTypes(name, database, this);
}
}