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

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+package net.sf.jasperreports.engine.base;
+
+import java.io.Serializable;
+import net.sf.jasperreports.engine.JRField;
+import net.sf.jasperreports.engine.JRPropertiesHolder;
+import net.sf.jasperreports.engine.JRPropertiesMap;
+import net.sf.jasperreports.engine.JRRuntimeException;
+import net.sf.jasperreports.engine.design.events.JRChangeEventsSupport;
+import net.sf.jasperreports.engine.design.events.JRPropertyChangeSupport;
+import net.sf.jasperreports.engine.util.JRClassLoader;
+
+public class JRBaseField implements JRField, Serializable, JRChangeEventsSupport {
+  private static final long serialVersionUID = 10200L;
+  
+  public static final String PROPERTY_DESCRIPTION = "description";
+  
+  protected String name = null;
+  
+  protected String description = null;
+  
+  protected String valueClassName = String.class.getName();
+  
+  protected String valueClassRealName = null;
+  
+  protected transient Class valueClass = null;
+  
+  protected JRPropertiesMap propertiesMap;
+  
+  private transient JRPropertyChangeSupport eventSupport;
+  
+  protected JRBaseField() {
+    this.propertiesMap = new JRPropertiesMap();
+  }
+  
+  protected JRBaseField(JRField field, JRBaseObjectFactory factory) {
+    factory.put(field, this);
+    this.name = field.getName();
+    this.description = field.getDescription();
+    this.valueClassName = field.getValueClassName();
+    this.propertiesMap = field.getPropertiesMap().cloneProperties();
+  }
+  
+  public String getName() {
+    return this.name;
+  }
+  
+  public String getDescription() {
+    return this.description;
+  }
+  
+  public void setDescription(String description) {
+    Object old = this.description;
+    this.description = description;
+    getEventSupport().firePropertyChange("description", old, this.description);
+  }
+  
+  public Class getValueClass() {
+    if (this.valueClass == null) {
+      String className = getValueClassRealName();
+      if (className != null)
+        try {
+          this.valueClass = JRClassLoader.loadClassForName(className);
+        } catch (ClassNotFoundException e) {
+          throw new JRRuntimeException(e);
+        }  
+    } 
+    return this.valueClass;
+  }
+  
+  public String getValueClassName() {
+    return this.valueClassName;
+  }
+  
+  private String getValueClassRealName() {
+    if (this.valueClassRealName == null)
+      this.valueClassRealName = JRClassLoader.getClassRealName(this.valueClassName); 
+    return this.valueClassRealName;
+  }
+  
+  public boolean hasProperties() {
+    return (this.propertiesMap != null && this.propertiesMap.hasProperties());
+  }
+  
+  public JRPropertiesMap getPropertiesMap() {
+    return this.propertiesMap;
+  }
+  
+  public JRPropertiesHolder getParentProperties() {
+    return null;
+  }
+  
+  public Object clone() {
+    JRBaseField clone = null;
+    try {
+      clone = (JRBaseField)super.clone();
+    } catch (CloneNotSupportedException e) {
+      throw new JRRuntimeException(e);
+    } 
+    if (this.propertiesMap != null)
+      clone.propertiesMap = (JRPropertiesMap)this.propertiesMap.clone(); 
+    return clone;
+  }
+  
+  public JRPropertyChangeSupport getEventSupport() {
+    synchronized (this) {
+      if (this.eventSupport == null)
+        this.eventSupport = new JRPropertyChangeSupport(this); 
+    } 
+    return this.eventSupport;
+  }
+}