GenContentIterator


1   package de.webman.generator; 
2   
3   import com.teamkonzept.web.*;
4   import com.teamkonzept.lib.*;
5   
6   /**
7       * @author  $Author: alex $
8       * @version $Revision: 1.7 $
9   */
10  public class GenContentIterator implements TKListIterator 
11  {
12  
13      /**
14       * Verweis zur�ck auf den aktuellen statischen Kontext des laufenden Threads
15       */
16      private GeneratorContext context;
17  
18      private TKVector entries;
19      private int entryCount;
20  
21      /**
22       * the scope in the template when the iterator is created 
23       */
24      private String   listName;
25      private TKListIterator oldIterator;
26      private boolean onlyStructureContents;
27      private boolean fromReference;
28  
29      /** wird nur Name generiert, oder auch der Inhalt ? */
30      private boolean onlyName;
31  
32      public GenContentIterator(
33          GeneratorContext context,
34          TKVector entries, 
35          String   listName, 
36          TKListIterator oldIterator,
37          boolean onlyStructureContents, boolean _fromReference, boolean _onlyName )
38      {
39          this.context = context != null ? context : GeneratorContext.setup ();
40          
41          this.entries = entries;
42          this.listName = listName;
43          this.oldIterator = oldIterator;
44          this.entryCount = entries.size();
45          this.onlyStructureContents = onlyStructureContents;
46          fromReference = _fromReference;
47          onlyName = _onlyName;
48      }
49      
50  
51      /**
52       * generiere den Content f�r einen spezifischen Listeneintrag aus dem
53       * Iterator.  (wende die jeweilige apply methode an)
54       * @param t das aktuelle template objekt
55       * @param i die listen position, die generiert werden soll
56       * @param currListName der aktuelle scope.  Nur wenn der aktuelle Scope
57       * mit dem scope �bereinstimmt, indem der Empf�nger instanziiert wurde,
58       * werden die contents auch tats�chlich generiert.
59       * @return konnten die contents generiert werden? (?)  */
60      public boolean apply( TKTemplate t, int i, String   currListName )
61      {
62          if( currListName.equalsIgnoreCase(listName) ) 
63          {
64              if( i >= entryCount ) return false;
65              SiteContent content = ((SiteContent)entries.get(i));
66  
67              if (content != null) 
68                  content.fillNameIntoTemplate( (TKHTMLTemplate)t, listName );
69  //              if (!fromReference)
70  //                  context.clearCycle();
71              // if (fromReference)
72              context.push();
73  
74              if (!ReferenceCycleDetector.isCycle(new Integer  (content.getInstanceId())) && ! onlyName)
75              {
76                  if ((content != null) && (!onlyStructureContents || content.isStructureContent()))
77                      {
78                      t.set( "SCOPE", currListName );
79                      t.set( currListName+".IDX", String.valueOf(i+1) );
80                      if( i % 2 == 1 ) t.set( currListName+".ODD", Boolean.TRUE );
81                      content.fillIntoTemplate( (TKHTMLTemplate )t, listName );
82                  }
83              }
84  
85              //if (fromReference)
86              context.pop();
87  
88              return true;
89          }
90          else if( oldIterator != null )
91          {
92              return oldIterator.apply( t, i, currListName );
93          }
94          return false;
95      }
96  }
97
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