From eea348768bb658e706a97620c1ebc839aaa9e0d8 Mon Sep 17 00:00:00 2001
From: Roger Willis <roger.willis@r3cev.com>
Date: Tue, 8 Jan 2019 11:03:57 +0000
Subject: [PATCH] CORDA-2098: State pointers are now comparable. (#4494)

* State pointers are now data classes, so now comparable.

* Pointers now are not data classes. Implemented hashCode and equals for comparability.
---
 .../net/corda/core/contracts/StatePointer.kt  | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/core/src/main/kotlin/net/corda/core/contracts/StatePointer.kt b/core/src/main/kotlin/net/corda/core/contracts/StatePointer.kt
index 5f1cc39401..cc31b74121 100644
--- a/core/src/main/kotlin/net/corda/core/contracts/StatePointer.kt
+++ b/core/src/main/kotlin/net/corda/core/contracts/StatePointer.kt
@@ -65,6 +65,19 @@ class StaticPointer<T : ContractState>(override val pointer: StateRef, override
     override fun resolve(ltx: LedgerTransaction): StateAndRef<T> {
         return ltx.referenceInputRefsOfType(type).single { pointer == it.ref }
     }
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (other !is StaticPointer<*>) return false
+
+        if (pointer != other.pointer) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        return pointer.hashCode()
+    }
 }
 
 /**
@@ -118,4 +131,17 @@ class LinearPointer<T : LinearState>(override val pointer: UniqueIdentifier, ove
     override fun resolve(ltx: LedgerTransaction): StateAndRef<T> {
         return ltx.referenceInputRefsOfType(type).single { pointer == it.state.data.linearId }
     }
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (other !is LinearPointer<*>) return false
+
+        if (pointer != other.pointer) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        return pointer.hashCode()
+    }
 }
\ No newline at end of file