Module org.eclipse.persistence.core
Package org.eclipse.persistence.internal.expressions

Class TableAliasLookup

java.lang.Object
org.eclipse.persistence.internal.expressions.TableAliasLookup
All Implemented Interfaces:
Serializable
public class TableAliasLookup extends Object implements Serializable
INTERNAL: Represents the aliased tables an ObjectExpression will be translated to, along with any of its derived TableExpressions. For bug 2778339 / CR 2456, this Lookup also represents identity. Two expressions with the same Lookup will be translated to the same table(s).
See Also:

  • Field Details

    • keys

      protected DatabaseTable[] keys

    • values

      protected DatabaseTable[] values

    • lastUsed

      protected int lastUsed

    • haveBeenAddedToStatement

      protected boolean haveBeenAddedToStatement

  • Constructor Details

    • TableAliasLookup

      public TableAliasLookup()
      TableAliasLookup constructor comment.

    • TableAliasLookup

      public TableAliasLookup(int initialSize)
      TableAliasLookup constructor comment.

  • Method Details

    • addToMap

      public void addToMap(Map<DatabaseTable,DatabaseTable> map)

    • get

      public DatabaseTable get(DatabaseTable key)

    • haveBeenAddedToStatement

      public boolean haveBeenAddedToStatement()
      INTERNAL: Answers if the aliases have already been added to a statement. This insures that a subselect will not re-add aliases already in a parent FROM clause. For CR#4223

    • isEmpty

      public boolean isEmpty()
      isEmpty method comment.

    • keyAtValue

      public DatabaseTable keyAtValue(DatabaseTable value)

    • keys

      public DatabaseTable[] keys()

    • put

      public DatabaseTable put(DatabaseTable key, DatabaseTable value)
      put method comment.

    • setHaveBeenAddedToStatement

      public void setHaveBeenAddedToStatement(boolean value)
      INTERNAL: Called when aliases are added to a statement. This insures that a subselect will not re-add aliases already in a parent FROM clause. For CR#4223

    • size

      public int size()
      size method comment.

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • values

      public DatabaseTable[] values()