case-study/refaktor-after/src/no/uio/ifi/refaktor/analyze/collectors/PropertyCollector.java

   1 package no.uio.ifi.refaktor.analyze.collectors;
   2
   3 import no.uio.ifi.refaktor.textselection.CompilationUnitTextSelection;
   4
   5 import org.eclipse.jdt.core.dom.ASTNode;
   6 import org.eclipse.jdt.core.dom.ASTVisitor;
   7
   8 /**
   9  * A PropertyCollector is responsible for collecting
  10  * properties from an AST, and in particular, properties
  11  * from within a selection.
  12  *
  13  * If the visitor shall be limited to visiting nodes inside
  14  * the selection, then subclasses that overrides a
  15  * visit(ASTNode node) method must put this formulary
  16  * as the first thing inside the method:
  17  *
  18  *              if (!nodeInSelection(node))
  19  *                      return false;
  20  */
  21 public abstract class PropertyCollector extends ASTVisitor {
  22
  23         protected final CompilationUnitTextSelection selection;
  24
  25         public PropertyCollector(CompilationUnitTextSelection selection) {
  26                 super();
  27                 this.selection = selection;
  28         }
  29
  30         protected boolean nodeInSelection(ASTNode node) {
  31                 return selection.surroundsNode(node);
  32         }
  33
  34         public abstract void clearData();
  35 }