diff --git a/core/src/main/java/org/springframework/ws/wsdl/wsdl11/ProviderBasedWsdl4jDefinition.java b/core/src/main/java/org/springframework/ws/wsdl/wsdl11/ProviderBasedWsdl4jDefinition.java
index 861c5e57..546c1e7a 100644
--- a/core/src/main/java/org/springframework/ws/wsdl/wsdl11/ProviderBasedWsdl4jDefinition.java
+++ b/core/src/main/java/org/springframework/ws/wsdl/wsdl11/ProviderBasedWsdl4jDefinition.java
@@ -30,7 +30,23 @@ import org.springframework.ws.wsdl.wsdl11.provider.ServicesProvider;
 import org.springframework.ws.wsdl.wsdl11.provider.TypesProvider;
 
 /**
+ * Implementation of the {@link Wsdl11Definition} that uses a provider-based mechanism to populate a WSDL4J {@link
+ * Definition}.
+ * <p/>
+ * All providers are optional, indicating that a particular part of the WSDL will not be created. Providers can be set
+ * via various properties. The providers are {@link #afterPropertiesSet() invoked} in the following order: <ol>
+ * <li>{@link ImportsProvider}</li> <li>{@link TypesProvider}</li> <li>{@link MessagesProvider}</li> <li>{@link
+ * PortTypesProvider}</li> <li>{@link BindingsProvider}</li> <li>{@link ServicesProvider}</li> </ol>
+ * <p/>
+ * This definition requires the target namespace to be set via {@link #setTargetNamespace(String)}
+ *
  * @author Arjen Poutsma
+ * @see #setImportsProvider(ImportsProvider)
+ * @see #setTypesProvider(TypesProvider)
+ * @see #setMessagesProvider(MessagesProvider)
+ * @see #setPortTypesProvider(PortTypesProvider)
+ * @see #setBindingsProvider(BindingsProvider)
+ * @see #setServicesProvider(ServicesProvider)
  * @since 1.5.0
  */
 public class ProviderBasedWsdl4jDefinition extends Wsdl4jDefinition implements InitializingBean {
@@ -52,35 +68,154 @@ public class ProviderBasedWsdl4jDefinition extends Wsdl4jDefinition implements I
 
     private String targetNamespace;
 
+    /**
+     * Returns the {@link ImportsProvider} for this definition.
+     * <p/>
+     * Default is <code>null</code>, indicating that no <code>&lt;import&gt;</code> will be created
+     *
+     * @return the import provider; or <code>null</code>
+     */
+    public ImportsProvider getImportsProvider() {
+        return importsProvider;
+    }
+
+    /**
+     * Sets the {@link ImportsProvider} for this definition.
+     * <p/>
+     * Default is <code>null</code>, indicating that no <code>&lt;import&gt;</code> will be created
+     *
+     * @param importsProvider the import provider
+     */
     public void setImportsProvider(ImportsProvider importsProvider) {
         this.importsProvider = importsProvider;
     }
 
+    /**
+     * Returns the {@link TypesProvider} for this definition.
+     * <p/>
+     * Defaults to <code>null</code>, indicating that no <code>&lt;types&gt;</code> will be created
+     *
+     * @return the types provider; or <code>null</code>
+     */
+    public TypesProvider getTypesProvider() {
+        return typesProvider;
+    }
+
+    /**
+     * Sets the {@link TypesProvider} for this definition.
+     * <p/>
+     * Defaults to <code>null</code>, indicating that no <code>&lt;types&gt;</code> will be created
+     *
+     * @param typesProvider the types provider; or <code>null</code>
+     */
     public void setTypesProvider(TypesProvider typesProvider) {
         this.typesProvider = typesProvider;
     }
 
+    /**
+     * Returns the {@link MessagesProvider} for this definition.
+     * <p/>
+     * Defaults to <code>null</code>, indicating that no <code>&lt;message&gt;</code> will be created
+     *
+     * @return the messages provider; or <code>null</code>
+     */
+    public MessagesProvider getMessagesProvider() {
+        return messagesProvider;
+    }
+
+    /**
+     * Sets the {@link MessagesProvider} for this definition.
+     * <p/>
+     * Defaults to <code>null</code>, indicating that no <code>&lt;message&gt;</code> will be created
+     *
+     * @param messagesProvider the messages provider; or <code>null</code>
+     */
     public void setMessagesProvider(MessagesProvider messagesProvider) {
         this.messagesProvider = messagesProvider;
     }
 
+    /**
+     * Returns the {@link PortTypesProvider} for this definition.
+     * <p/>
+     * Defaults to <code>null</code>, indicating that no <code>&lt;portType&gt;</code> will be created
+     *
+     * @return the port types provider; or <code>null</code>
+     */
+    public PortTypesProvider getPortTypesProvider() {
+        return portTypesProvider;
+    }
+
+    /**
+     * Sets the {@link PortTypesProvider} for this definition.
+     * <p/>
+     * Defaults to <code>null</code>, indicating that no <code>&lt;portType&gt;</code> will be created
+     *
+     * @param portTypesProvider the port types provider; or <code>null</code>
+     */
     public void setPortTypesProvider(PortTypesProvider portTypesProvider) {
         this.portTypesProvider = portTypesProvider;
     }
 
+    /**
+     * Returns the {@link BindingsProvider} for this definition.
+     * <p/>
+     * Defaults to <code>null</code>, indicating that no <code>&lt;binding&gt;</code> will be created
+     *
+     * @return the binding provider; or <code>null</code>
+     */
+    public BindingsProvider getBindingsProvider() {
+        return bindingsProvider;
+    }
+
+    /**
+     * Sets the {@link BindingsProvider} for this definition.
+     * <p/>
+     * Defaults to <code>null</code>, indicating that no <code>&lt;binding&gt;</code> will be created
+     *
+     * @param bindingsProvider the bindings provider; or <code>null</code>
+     */
     public void setBindingsProvider(BindingsProvider bindingsProvider) {
         this.bindingsProvider = bindingsProvider;
     }
 
+    /**
+     * Returns the {@link ServicesProvider} for this definition.
+     * <p/>
+     * Defaults to <code>null</code>, indicating that no <code>&lt;service&gt;</code> will be created
+     *
+     * @return the services provider; or <code>null</code>
+     */
+    public ServicesProvider getServicesProvider() {
+        return servicesProvider;
+    }
+
+    /**
+     * Sets the {@link ServicesProvider} for this definition.
+     * <p/>
+     * Defaults to <code>null</code>, indicating that no <code>&lt;service&gt;</code> will be created
+     *
+     * @param servicesProvider the services provider; or <code>null</code>
+     */
     public void setServicesProvider(ServicesProvider servicesProvider) {
         this.servicesProvider = servicesProvider;
     }
 
+    /**
+     * Returns the target namespace for the WSDL definition.
+     *
+     * @return the target namespace
+     * @see javax.wsdl.Definition#getTargetNamespace()
+     */
     public String getTargetNamespace() {
         return targetNamespace;
     }
 
-    /** Sets the target namespace used for this definition. Required. */
+    /**
+     * Sets the target namespace used for this definition. Required.
+     *
+     * @param targetNamespace the target namespace
+     * @see javax.wsdl.Definition#setTargetNamespace(String)
+     */
     public void setTargetNamespace(String targetNamespace) {
         this.targetNamespace = targetNamespace;
     }