OuterJoinLoadable


1   //$Id: OuterJoinLoadable.java,v 1.2 2005/05/16 05:44:46 oneovthafew Exp $
2   package org.hibernate.persister.entity;
3   
4   import org.hibernate.FetchMode;
5   import org.hibernate.type.EntityType;
6   import org.hibernate.type.Type;
7   
8   /**
9    * A <tt>EntityPersister</tt> that may be loaded by outer join using
10   * the <tt>OuterJoinLoader</tt> hierarchy and may be an element
11   * of a one-to-many association.
12   *
13   * @see org.hibernate.loader.OuterJoinLoader
14   * @author Gavin King
15   */
16  public interface OuterJoinLoadable extends Loadable, Joinable {
17  
18      /**
19       * Generate a list of collection index, key and element columns
20       */
21      public String   selectFragment(String   alias, String   suffix);
22      /**
23       * How many properties are there, for this class and all subclasses.
24       */
25      public int countSubclassProperties();
26  
27      /**
28       * May this property be fetched using an SQL outerjoin.
29       */
30      public FetchMode getFetchMode(int i);
31  
32      /**
33       * Is this property defined on a subclass of the mapped class.
34       */
35      public boolean isDefinedOnSubclass(int i);
36  
37      /**
38       * Get the type of the numbered property of the class or a subclass.
39       */
40      public Type getSubclassPropertyType(int i);
41  
42      /**
43       * Get the name of the numbered property of the class or a subclass.
44       */
45      public String   getSubclassPropertyName(int i);
46      
47      /**
48       * Is the numbered property of the class of subclass nullable?
49       */
50      public boolean isSubclassPropertyNullable(int i);
51  
52      /**
53       * Return the column names used to persist the numbered property of the
54       * class or a subclass.
55       */
56      public String  [] getSubclassPropertyColumnNames(int i);
57  
58      /**
59       * Return the table name used to persist the numbered property of the
60       * class or a subclass.
61       */
62      public String   getSubclassPropertyTableName(int i);
63      /**
64       * Given the number of a property of a subclass, and a table alias,
65       * return the aliased column names.
66       */
67      public String  [] toColumns(String   name, int i);
68  
69      /**
70       * Get the main from table fragment, given a query alias.
71       */
72      public String   fromTableFragment(String   alias);
73  
74      /**
75       * Get the column names for the given property path
76       */
77      public String  [] getPropertyColumnNames(String   propertyPath);
78      /**
79       * Get the table name for the given property path
80       */
81      public String   getPropertyTableName(String   propertyName);
82      
83      public EntityType getEntityType();
84  
85  }
86
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