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- /*
- @VaadinApache2LicenseForJavaFiles@
- */
- package com.vaadin.data.util;
-
- import java.io.IOException;
- import java.lang.reflect.Method;
- import java.util.logging.Level;
- import java.util.logging.Logger;
-
- import com.vaadin.data.Property;
- import com.vaadin.util.SerializerHelper;
-
- /**
- * Property descriptor that is able to create simple {@link MethodProperty}
- * instances for a bean, using given accessors.
- *
- * @param <BT>
- * bean type
- *
- * @since 6.6
- */
- public class MethodPropertyDescriptor<BT> implements
- VaadinPropertyDescriptor<BT> {
-
- private final String name;
- private Class<?> propertyType;
- private transient Method readMethod;
- private transient Method writeMethod;
-
- /**
- * Creates a property descriptor that can create MethodProperty instances to
- * access the underlying bean property.
- *
- * @param name
- * of the property
- * @param propertyType
- * type (class) of the property
- * @param readMethod
- * getter {@link Method} for the property
- * @param writeMethod
- * setter {@link Method} for the property or null if read-only
- * property
- */
- public MethodPropertyDescriptor(String name, Class<?> propertyType,
- Method readMethod, Method writeMethod) {
- this.name = name;
- this.propertyType = propertyType;
- this.readMethod = readMethod;
- this.writeMethod = writeMethod;
- }
-
- /* Special serialization to handle method references */
- private void writeObject(java.io.ObjectOutputStream out) throws IOException {
- out.defaultWriteObject();
- SerializerHelper.writeClass(out, propertyType);
-
- if (writeMethod != null) {
- out.writeObject(writeMethod.getName());
- SerializerHelper.writeClass(out, writeMethod.getDeclaringClass());
- SerializerHelper.writeClassArray(out,
- writeMethod.getParameterTypes());
- } else {
- out.writeObject(null);
- out.writeObject(null);
- out.writeObject(null);
- }
-
- if (readMethod != null) {
- out.writeObject(readMethod.getName());
- SerializerHelper.writeClass(out, readMethod.getDeclaringClass());
- SerializerHelper.writeClassArray(out,
- readMethod.getParameterTypes());
- } else {
- out.writeObject(null);
- out.writeObject(null);
- out.writeObject(null);
- }
- }
-
- /* Special serialization to handle method references */
- private void readObject(java.io.ObjectInputStream in) throws IOException,
- ClassNotFoundException {
- in.defaultReadObject();
- try {
- @SuppressWarnings("unchecked")
- // business assumption; type parameters not checked at runtime
- Class<BT> class1 = (Class<BT>) SerializerHelper.readClass(in);
- propertyType = class1;
-
- String name = (String) in.readObject();
- Class<?> writeMethodClass = SerializerHelper.readClass(in);
- Class<?>[] paramTypes = SerializerHelper.readClassArray(in);
- if (name != null) {
- writeMethod = writeMethodClass.getMethod(name, paramTypes);
- } else {
- writeMethod = null;
- }
-
- name = (String) in.readObject();
- Class<?> readMethodClass = SerializerHelper.readClass(in);
- paramTypes = SerializerHelper.readClassArray(in);
- if (name != null) {
- readMethod = readMethodClass.getMethod(name, paramTypes);
- } else {
- readMethod = null;
- }
- } catch (SecurityException e) {
- getLogger().log(Level.SEVERE, "Internal deserialization error", e);
- } catch (NoSuchMethodException e) {
- getLogger().log(Level.SEVERE, "Internal deserialization error", e);
- }
- };
-
- @Override
- public String getName() {
- return name;
- }
-
- @Override
- public Class<?> getPropertyType() {
- return propertyType;
- }
-
- @Override
- public Property<?> createProperty(Object bean) {
- return new MethodProperty<Object>(propertyType, bean, readMethod,
- writeMethod);
- }
-
- private static final Logger getLogger() {
- return Logger.getLogger(MethodPropertyDescriptor.class.getName());
- }
- }
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