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hrmsEjb/net/sf/jasperreports/engine/base/JRBaseElementGroup.java

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+package net.sf.jasperreports.engine.base;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import net.sf.jasperreports.crosstabs.JRCrosstab;
+import net.sf.jasperreports.engine.JRChild;
+import net.sf.jasperreports.engine.JRElement;
+import net.sf.jasperreports.engine.JRElementGroup;
+import net.sf.jasperreports.engine.JRFrame;
+import net.sf.jasperreports.engine.JRRuntimeException;
+import net.sf.jasperreports.engine.JRVisitable;
+import net.sf.jasperreports.engine.JRVisitor;
+
+public class JRBaseElementGroup implements JRElementGroup, Serializable {
+  private static final long serialVersionUID = 10200L;
+  
+  protected List children = new ArrayList();
+  
+  protected JRElementGroup elementGroup = null;
+  
+  protected JRBaseElementGroup() {}
+  
+  protected JRBaseElementGroup(JRElementGroup elementGrp, JRBaseObjectFactory factory) {
+    factory.put(elementGrp, this);
+    List list = elementGrp.getChildren();
+    if (list != null && list.size() > 0)
+      for (int i = 0; i < list.size(); i++) {
+        JRChild child = list.get(i);
+        child = (JRChild)factory.getVisitResult((JRVisitable)child);
+        this.children.add(child);
+      }  
+    this.elementGroup = (JRElementGroup)factory.getVisitResult((JRVisitable)elementGrp.getElementGroup());
+  }
+  
+  public List getChildren() {
+    return this.children;
+  }
+  
+  public JRElementGroup getElementGroup() {
+    return this.elementGroup;
+  }
+  
+  public static JRElement[] getElements(List children) {
+    JRElement[] elements = null;
+    if (children != null) {
+      List allElements = new ArrayList();
+      Object child = null;
+      JRElement[] childElementArray = null;
+      for (int i = 0; i < children.size(); i++) {
+        child = children.get(i);
+        if (child instanceof JRElement) {
+          allElements.add(child);
+        } else if (child instanceof JRElementGroup) {
+          childElementArray = ((JRElementGroup)child).getElements();
+          if (childElementArray != null)
+            allElements.addAll(Arrays.asList((Object[])childElementArray)); 
+        } 
+      } 
+      elements = new JRElement[allElements.size()];
+      allElements.toArray(elements);
+    } 
+    return elements;
+  }
+  
+  public JRElement[] getElements() {
+    return getElements(this.children);
+  }
+  
+  public static JRElement getElementByKey(JRElement[] elements, String key) {
+    JRElement element = null;
+    if (key != null)
+      if (elements != null) {
+        int i = 0;
+        while (element == null && i < elements.length) {
+          JRElement elem = elements[i];
+          if (key.equals(elem.getKey())) {
+            element = elem;
+          } else if (elem instanceof JRFrame) {
+            element = ((JRFrame)elem).getElementByKey(key);
+          } else if (elem instanceof JRCrosstab) {
+            element = ((JRCrosstab)elem).getElementByKey(key);
+          } 
+          i++;
+        } 
+      }  
+    return element;
+  }
+  
+  public JRElement getElementByKey(String key) {
+    return getElementByKey(getElements(), key);
+  }
+  
+  public void visit(JRVisitor visitor) {
+    visitor.visitElementGroup(this);
+  }
+  
+  public Object clone() {
+    JRBaseElementGroup clone = null;
+    try {
+      clone = (JRBaseElementGroup)super.clone();
+    } catch (CloneNotSupportedException e) {
+      throw new JRRuntimeException(e);
+    } 
+    if (this.children != null) {
+      clone.children = new ArrayList(this.children.size());
+      for (int i = 0; i < this.children.size(); i++)
+        clone.children.add(((JRChild)this.children.get(i)).clone(clone)); 
+    } 
+    return clone;
+  }
+  
+  public Object clone(JRElementGroup parentGroup) {
+    JRBaseElementGroup clone = (JRBaseElementGroup)clone();
+    clone.elementGroup = parentGroup;
+    return clone;
+  }
+}