Package org.springframework.data.relational.core.sql.render

Class SubselectVisitor

java.lang.Object
org.springframework.data.relational.core.sql.render.SubselectVisitor
All Implemented Interfaces:
Visitor
public class SubselectVisitor extends Object

  • Constructor Details

    • SubselectVisitor

      public SubselectVisitor(RenderContext context, org.springframework.data.relational.core.sql.render.RenderTarget parent)

  • Method Details

    • doEnter

      public final org.springframework.data.relational.core.sql.render.DelegatingVisitor.Delegation doEnter(Visitable segment)
      Invoked for a segment when entering the segment.

      This method can signal whether it is responsible for handling the segment or whether the segment requires delegation to a sub-Visitor. When delegating to a sub-Visitor, doEnter(Visitable) is called on the delegate.

      Parameters:
      segment - must not be null.
      Returns:

    • doLeave

      public final org.springframework.data.relational.core.sql.render.DelegatingVisitor.Delegation doLeave(Visitable segment)
      Invoked for a segment when leaving the segment.

      This method can signal whether this Visitor should remain responsible for handling subsequent segments or whether it should step back from delegation. When stepping back from delegation, doLeave(Visitable) is called on the parent delegate.

      Parameters:
      segment - must not be null.
      Returns:

    • enter

      public final void enter(Visitable segment)
      Description copied from interface: Visitor
      Enter a Visitable.
      Specified by:
      enter in interface Visitor
      Parameters:
      segment - the segment to visit.

    • leave

      public final void leave(Visitable segment)
      Description copied from interface: Visitor
      Leave a Visitable.
      Specified by:
      leave in interface Visitor
      Parameters:
      segment - the visited segment.