AbstractXPathVisitor


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19  
20  package org.netbeans.modules.xml.xpath.visitor;
21  
22  import java.util.Collection  ;
23  import java.util.Iterator  ;
24  
25  import org.netbeans.modules.xml.xpath.LocationStep;
26  import org.netbeans.modules.xml.xpath.XPathCoreFunction;
27  import org.netbeans.modules.xml.xpath.XPathCoreOperation;
28  import org.netbeans.modules.xml.xpath.XPathExpression;
29  import org.netbeans.modules.xml.xpath.XPathExpressionPath;
30  import org.netbeans.modules.xml.xpath.XPathExtensionFunction;
31  import org.netbeans.modules.xml.xpath.XPathLocationPath;
32  import org.netbeans.modules.xml.xpath.XPathNumericLiteral;
33  import org.netbeans.modules.xml.xpath.XPathOperationOrFuntion;
34  import org.netbeans.modules.xml.xpath.XPathPredicateExpression;
35  import org.netbeans.modules.xml.xpath.XPathStringLiteral;
36  import org.netbeans.modules.xml.xpath.XPathVariableReference;
37  
38  
39  /**
40   * 
41   * @author radval
42   *
43   */
44  public abstract class AbstractXPathVisitor implements XPathVisitor {
45  
46      public void visit(LocationStep locationStep) {
47      }
48  
49      public void visit(XPathCoreFunction coreFunction) {
50      }
51  
52      public void visit(XPathCoreOperation coreOperation) {
53      }
54  
55      public void visit(XPathExpressionPath expressionPath) {
56      }
57  
58      public void visit(XPathExtensionFunction extensionFunction) {
59      }
60  
61      public void visit(XPathLocationPath locationPath) {
62      }
63  
64      public void visit(XPathNumericLiteral numericLiteral) {
65      }
66  
67      public void visit(XPathStringLiteral stringLiteral) {
68      }
69  
70      public void visit(XPathVariableReference vReference) {
71      }
72      
73      
74      public void visit(XPathPredicateExpression predicate) {
75          XPathExpression predicateExpression = predicate.getPredicate();
76          if(predicateExpression != null) {
77              predicateExpression.accept(this);
78          }
79      }
80  
81      protected void visitChildren(XPathOperationOrFuntion expr) {
82           Collection   children = expr.getChildren();
83           if(children != null) {
84               Iterator   it = children.iterator();
85               while(it.hasNext()) {
86                   XPathExpression child = (XPathExpression) it.next();
87                   child.accept(this);
88                   
89               }
90           }
91      }
92      
93  }
94
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