S283 Planetary Science &n…he Search for Life DVD 2/DVD-ROM.iso/install/jre1_3/lib/rt.jar/java/beans/PropertyDescriptor.class

Java Class File | 1979-12-31 | 3.7 KB | 191 lines

package java.beans;

import java.lang.reflect.Method;

public class PropertyDescriptor extends FeatureDescriptor {
   private Class propertyType;
   private Method readMethod;
   private Method writeMethod;
   private boolean bound;
   private boolean constrained;
   private Class propertyEditorClass;

   public PropertyDescriptor(String var1, Class var2) throws IntrospectionException {
      if (var1 != null && var1.length() != 0) {
         ((FeatureDescriptor)this).setName(var1);
         String var3 = capitalize(var1);

         try {
            this.readMethod = Introspector.findMethod(var2, "is" + var3, 0);
         } catch (Exception var5) {
            this.readMethod = Introspector.findMethod(var2, "get" + var3, 0);
         }

         Class[] var4 = new Class[]{this.readMethod.getReturnType()};
         this.writeMethod = Introspector.findMethod(var2, "set" + var3, 1, var4);
         this.findPropertyType();
      } else {
         throw new IntrospectionException("bad property name");
      }
   }

   public PropertyDescriptor(String var1, Class var2, String var3, String var4) throws IntrospectionException {
      if (var1 != null && var1.length() != 0) {
         ((FeatureDescriptor)this).setName(var1);
         this.readMethod = Introspector.findMethod(var2, var3, 0);
         if (this.readMethod != null) {
            Class[] var5 = new Class[]{this.readMethod.getReturnType()};
            this.writeMethod = Introspector.findMethod(var2, var4, 1, var5);
         } else {
            this.writeMethod = Introspector.findMethod(var2, var4, 1);
         }

         this.findPropertyType();
      } else {
         throw new IntrospectionException("bad property name");
      }
   }

   public PropertyDescriptor(String var1, Method var2, Method var3) throws IntrospectionException {
      if (var1 != null && var1.length() != 0) {
         ((FeatureDescriptor)this).setName(var1);
         this.readMethod = var2;
         this.writeMethod = var3;
         this.findPropertyType();
      } else {
         throw new IntrospectionException("bad property name");
      }
   }

   public Class getPropertyType() {
      return this.propertyType;
   }

   public Method getReadMethod() {
      return this.readMethod;
   }

   public void setReadMethod(Method var1) throws IntrospectionException {
      this.readMethod = var1;
      this.findPropertyType();
   }

   public Method getWriteMethod() {
      return this.writeMethod;
   }

   public void setWriteMethod(Method var1) throws IntrospectionException {
      this.writeMethod = var1;
      this.findPropertyType();
   }

   public boolean isBound() {
      return this.bound;
   }

   public void setBound(boolean var1) {
      this.bound = var1;
   }

   public boolean isConstrained() {
      return this.constrained;
   }

   public void setConstrained(boolean var1) {
      this.constrained = var1;
   }

   public void setPropertyEditorClass(Class var1) {
      this.propertyEditorClass = var1;
   }

   public Class getPropertyEditorClass() {
      return this.propertyEditorClass;
   }

   PropertyDescriptor(PropertyDescriptor var1, PropertyDescriptor var2) {
      super(var1, var2);
      Method var3 = var1.readMethod;
      Method var4 = var2.readMethod;
      this.readMethod = var3;
      if (var4 != null) {
         this.readMethod = var4;
      }

      if (var3 != null && var4 != null && var3.getDeclaringClass() == var4.getDeclaringClass() && var3.getReturnType() == Boolean.TYPE && var4.getReturnType() == Boolean.TYPE && var3.getName().indexOf("is") == 0 && var4.getName().indexOf("get") == 0) {
         this.readMethod = var3;
      }

      this.writeMethod = var1.writeMethod;
      if (var2.writeMethod != null) {
         this.writeMethod = var2.writeMethod;
      }

      this.propertyEditorClass = var1.propertyEditorClass;
      if (var2.propertyEditorClass != null) {
         this.propertyEditorClass = var2.propertyEditorClass;
      }

      this.bound = var1.bound | var2.bound;
      this.constrained = var1.constrained | var2.constrained;

      try {
         this.findPropertyType();
      } catch (IntrospectionException var6) {
         throw new Error("PropertyDescriptor: internal error while merging PDs");
      }
   }

   PropertyDescriptor(PropertyDescriptor var1) {
      super(var1);
      this.readMethod = var1.readMethod;
      this.writeMethod = var1.writeMethod;
      this.propertyEditorClass = var1.propertyEditorClass;
      this.bound = var1.bound;
      this.constrained = var1.constrained;
      this.propertyType = var1.propertyType;
   }

   private void findPropertyType() throws IntrospectionException {
      try {
         this.propertyType = null;
         if (this.readMethod != null) {
            if (this.readMethod.getParameterTypes().length != 0) {
               throw new IntrospectionException("bad read method arg count");
            }

            this.propertyType = this.readMethod.getReturnType();
            if (this.propertyType == Void.TYPE) {
               throw new IntrospectionException("read method " + this.readMethod.getName() + " returns void");
            }
         }

         if (this.writeMethod != null) {
            Class[] var1 = this.writeMethod.getParameterTypes();
            if (var1.length != 1) {
               throw new IntrospectionException("bad write method arg count");
            }

            if (this.propertyType != null && this.propertyType != var1[0]) {
               throw new IntrospectionException("type mismatch between read and write methods");
            }

            this.propertyType = var1[0];
         }

      } catch (IntrospectionException var2) {
         throw var2;
      }
   }

   static String capitalize(String var0) {
      if (var0.length() == 0) {
         return var0;
      } else {
         char[] var1 = var0.toCharArray();
         var1[0] = Character.toUpperCase(var1[0]);
         return new String(var1);
      }
   }
}