Class IrBGP

java.lang.Object
org.eclipse.rdf4j.queryrender.sparql.ir.IrNode
org.eclipse.rdf4j.queryrender.sparql.ir.IrBGP
public class IrBGP extends IrNode
Textual IR for a WHERE/group block: ordered list of lines/nodes. Semantics: - Lines typically include triples (IrStatementPattern or IrPathTriple), modifiers (IrFilter, IrBind, IrValues), and container blocks such as IrGraph, IrOptional, IrMinus, IrUnion, IrService. - Order matters: most transforms preserve relative order except where a local, safe rewrite explicitly requires adjacency. - Printing is delegated to IrPrinter; indentation and braces are handled there.

  • Constructor Details

    • IrBGP

      public IrBGP(boolean newScope)

    • IrBGP

      public IrBGP(IrBGP where, boolean newScope)

    • IrBGP

      public IrBGP(List<IrNode> lines, boolean newScope)

  • Method Details

    • getLines

      public List<IrNode> getLines()

    • add

      public void add(IrNode node)

    • print

      public void print(IrPrinter p)
      Description copied from class: IrNode
      Default no-op printing; concrete nodes override.
      Specified by:
      print in class IrNode

    • transformChildren

      public IrNode transformChildren(UnaryOperator<IrNode> op)
      Description copied from class: IrNode
      Function-style child transformation hook used by the transform pipeline to descend into nested structures. Contract: - Leaf nodes return this unchanged. - Container nodes return a new instance with their immediate children transformed using the provided operator. - Implementations must not mutate this or its existing children.
      Overrides:
      transformChildren in class IrNode

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • getVars

      public Set<Var> getVars()
      Description copied from class: IrNode
      Collect variables referenced by this node and all of its children (if any). Default implementation returns an empty set; container and triple-like nodes override to include their own Vars and recurse into child nodes.
      Overrides:
      getVars in class IrNode