Module org.postgresql.pljava

Package org.postgresql.pljava.model

Interface CatalogObject.Addressed<T extends CatalogObject.Addressed<T>>

Type Parameters:

T - Specific subtype of Addressed that represents catalog objects with the given class id.

All Superinterfaces:

CatalogObject

All Known Subinterfaces:

Attribute, Database, Extension, ProceduralLanguage, RegClass, RegClass.Known<T>, RegCollation, RegConfig, RegDictionary, RegNamespace, RegOperator, RegProcedure<M>, RegRole, RegRole.Grantee, RegType, RegType.Unresolved

Enclosing interface:

CatalogObject

public static interface CatalogObject.Addressed<T extends CatalogObject.Addressed<T>>
extends CatalogObject

A catalog object that has both oid and classId specified, and can be looked up in the PostgreSQL catalogs (where it may, or may not, be found).

Nested Class Summary

Nested classes/interfaces inherited from interface org.postgresql.pljava.model.CatalogObject

CatalogObject.AccessControlled<T extends CatalogObject.Grant>, CatalogObject.Addressed<T extends CatalogObject.Addressed<T>>, CatalogObject.Component, CatalogObject.Grant, CatalogObject.Named<T extends Lexicals.Identifier.Unqualified<T>>, CatalogObject.Namespaced<T extends Lexicals.Identifier.Unqualified<T>>, CatalogObject.Owned

Field Summary

Fields inherited from interface org.postgresql.pljava.model.CatalogObject

InvalidOid

Method Summary

Modifier and Type	Method	Description
RegClass.Known<T>	classId()	Returns the classId (which is an instance of RegClass.Known of this addressed catalog object.
boolean	exists()	Whether a catalog object with this address in fact exists in the PostgreSQL catalogs.
default boolean	shared()	Whether this catalog object is shared across all databases in the cluster.

Methods inherited from interface org.postgresql.pljava.model.CatalogObject

isValid, of, oid

Method Details

classId

RegClass.Known<T> classId()

Returns the classId (which is an instance of RegClass.Known of this addressed catalog object.

exists

boolean exists()

Whether a catalog object with this address in fact exists in the PostgreSQL catalogs.

Unlike isValid(), which depends only on the value of oid(), this reflects the result of a catalog lookup.

shared

default boolean shared()

Whether this catalog object is shared across all databases in the cluster.

Contrast isShared(), a method found only on RegClass, which indicates whether that RegClass instance represents a shared relation. Catalog objects formed with that RegClass instance as their classId will have shared() == true, though the RegClass instance itself will have shared() == false (because it models a row in pg_class itself, a catalog that isn't shared).

Returns:

classId().isShared()