SPI implementation

src/main/java/net/openhft/chronicle/hash/HashAbsentEntry.java

@@ -0,0 +1,17 @@
+package net.openhft.chronicle.hash;
+
+import org.jetbrains.annotations.NotNull;
+
+public interface HashAbsentEntry<K> {
+    
+    /**
+     * Returns the context, in which the entry is going to be inserted into the hash.
+     */
+    HashContext<K> context();
+    
+    /**
+     * Returns the key is going to be inserted into the {@code ChronicleHash}.
+     */
+    @NotNull
+    Value<K, ?> absentKey();
+}