Helper methods and unit tests for BdfList/Dictionary.

briar-api/src/org/briarproject/api/data/BdfEntry.java

@@ -0,0 +1,32 @@
+package org.briarproject.api.data;
+
+import java.util.Map.Entry;
+
+// This class is not thread-safe
+public class BdfEntry implements Entry<String, Object> {
+
+	private final String key;
+	private Object value;
+
+	public BdfEntry(String key, Object value) {
+		this.key = key;
+		this.value = value;
+	}
+
+	@Override
+	public String getKey() {
+		return key;
+	}
+
+	@Override
+	public Object getValue() {
+		return value;
+	}
+
+	@Override
+	public Object setValue(Object value) {
+		Object oldValue = this.value;
+		this.value = value;
+		return oldValue;
+	}
+}