X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fdemoscenemusic%2Fdata%2FAbstractBase.java;h=ad5cfd8f7e27a52da793e65b94a17e8a53114934;hb=5d19c11df7ca4a969fbfe7583ca934174fb348bf;hp=4a35db19584cd313fa95d4173dc3ae9dd8cdd486;hpb=6c850a66c258f3b59e62bd60c794137625bbc82a;p=demoscenemusic.git

diff --git a/src/main/java/net/pterodactylus/demoscenemusic/data/AbstractBase.java b/src/main/java/net/pterodactylus/demoscenemusic/data/AbstractBase.java
index 4a35db1..ad5cfd8 100644
--- a/src/main/java/net/pterodactylus/demoscenemusic/data/AbstractBase.java
+++ b/src/main/java/net/pterodactylus/demoscenemusic/data/AbstractBase.java
@@ -19,13 +19,14 @@ package net.pterodactylus.demoscenemusic.data;
 
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Map.Entry;
 
 /**
  * TODO
  *
  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  */
-public class AbstractBase {
+public abstract class AbstractBase implements Base {
 
 	private final String id;
 
@@ -47,10 +48,59 @@ public class AbstractBase {
 		return (Value<T>) attributes.get(name);
 	}
 
+	protected boolean dirty() {
+		for (Value<?> value : attributes.values()) {
+			if (value.dirty()) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	//
+	// OBJECT METHODS
+	//
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public int hashCode() {
+		return id().hashCode();
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public boolean equals(Object obj) {
+		if (!(obj instanceof Base)) {
+			return false;
+		}
+		return id().equals(((Base) obj).id());
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public String toString() {
+		StringBuilder stringBuilder = new StringBuilder();
+		stringBuilder.append(getClass().getName());
+		stringBuilder.append('[').append("id=").append(id());
+		for (Entry<String, Value<?>> attributeEntry : attributes.entrySet()) {
+			stringBuilder.append(',').append(attributeEntry.getKey()).append('=').append(attributeEntry.getValue().get());
+		}
+		stringBuilder.append(']');
+		return stringBuilder.toString();
+	}
+
 	protected static class Value<T> {
 
 		private T original;
 
+		private boolean originalSet;
+
 		private T current;
 
 		public T get() {
@@ -58,6 +108,10 @@ public class AbstractBase {
 		}
 
 		public Value<T> set(T value) {
+			if (!originalSet) {
+				original = value;
+				originalSet = true;
+			}
 			current = value;
 			return this;
 		}