Class JoinedSelect<T extends PersistentDomainObject<T>>

java.lang.Object
org.tentackle.persist.JoinedSelect<T>
Type Parameters:
T - the primary PDO type
public class JoinedSelect<T extends PersistentDomainObject<T>> extends Object
A joined SELECT.
Author:
harald

  • Constructor Details

    • JoinedSelect

      public JoinedSelect()
      Creates a joined SELECT.

    • JoinedSelect

      public JoinedSelect(List<Join<? super T, ?>> joins)
      Creates a joined SELECT from a list of joins.
      Parameters:
      joins - the joins

  • Method Details

    • addJoin

      public JoinedSelect<T> addJoin(Join<? super T, ?> join)
      Adds a join.
      Parameters:
      join - the join
      Returns:
      me (to allow fluent style setup)

    • getJoins

      public List<Join<? super T, ?>> getJoins()
      Gets the joins.
      Returns:
      the joins

    • getJoinState

      public JoinState getJoinState()
      Gets the state of the joins for this select.
      Returns:
      the join state, never null

    • createJoinedSql

      public void createJoinedSql(T pdo, StringBuilder selectSql)
      Creates the SQL code that does the joined select.
      Parameters:
      pdo - the PDO proxy
      selectSql - the select builder without joins

    • getLastPdo

      public T getLastPdo()
      Gets the PDO retrieved before the current PDO.
      Returns:
      the last pdo

    • currentPdo

      public T currentPdo()
      Gets the currently retrieved PDO.
      Returns:
      the pdo, null if no query running

    • nextPdo

      public T nextPdo(T pdo)
      Finishes the current pdo and switches to the next.
      Parameters:
      pdo - the next pdo
      Returns:
      the pdo possibly changed if already in the list

    • initialize

      public void initialize(List<T> list)
      Initializes the joined select.
      Parameters:
      list - the list if select to list