renamed ValueWrapperImpl to SimpleValueWrapper (for use in Cache implementations)

Author: jhoeller

org.springframework.context/src/main/java/org/springframework/cache/concurrent/ConcurrentMapCache.java

@@ -21,7 +21,7 @@
 import java.util.concurrent.ConcurrentMap;
 
 import org.springframework.cache.Cache;
-import org.springframework.cache.support.ValueWrapperImpl;
+import org.springframework.cache.support.SimpleValueWrapper;
 
 /**
  * Simple {@link Cache} implementation based on the core JDK
@@ -96,7 +96,7 @@ public boolean isAllowNullValues() {
 
 	public ValueWrapper get(Object key) {
 		Object value = this.store.get(key);
-		return (value != null ? new ValueWrapperImpl(fromStoreValue(value)) : null);
+		return (value != null ? new SimpleValueWrapper(fromStoreValue(value)) : null);
 	}
 
 	public void put(Object key, Object value) {

org.springframework.context/src/main/java/org/springframework/cache/ehcache/EhCacheCache.java

@@ -21,7 +21,7 @@
 import net.sf.ehcache.Status;
 
 import org.springframework.cache.Cache;
-import org.springframework.cache.support.ValueWrapperImpl;
+import org.springframework.cache.support.SimpleValueWrapper;
 import org.springframework.util.Assert;
 
 /**
@@ -63,7 +63,7 @@ public void clear() {
 
 	public ValueWrapper get(Object key) {
 		Element element = this.cache.get(key);
-		return (element != null ? new ValueWrapperImpl(element.getObjectValue()) : null);
+		return (element != null ? new SimpleValueWrapper(element.getObjectValue()) : null);
 	}
 
 	public void put(Object key, Object value) {

org.springframework.context/src/main/java/org/springframework/cache/support/ValueWrapperImpl.java renamed to org.springframework.context/src/main/java/org/springframework/cache/support/SimpleValueWrapper.java

@@ -19,19 +19,29 @@
 import org.springframework.cache.Cache.ValueWrapper;
 
 /**
- * Straightforward implementation of {@link org.springframework.cache.Cache.ValueWrapper}.
+ * Straightforward implementation of {@link org.springframework.cache.Cache.ValueWrapper},
+ * simply holding the value as given at construction and returning it from {@link #get()}.
  *
  * @author Costin Leau
  * @since 3.1
  */
-public class ValueWrapperImpl implements ValueWrapper {
+public class SimpleValueWrapper implements ValueWrapper {
 
 	private final Object value;
 
-	public ValueWrapperImpl(Object value) {
+
+	/**
+	 * Create a new SimpleValueWrapper instance for exposing the given value.
+	 * @param value the value to expose (may be <code>null</code>)
+	 */
+	public SimpleValueWrapper(Object value) {
 		this.value = value;
 	}
 
+
+	/**
+	 * Simply returns the value as given at construction time.
+	 */
 	public Object get() {
 		return this.value;
 	}