From 58641d71979171963ab351c8eb045e3714b4bd6c Mon Sep 17 00:00:00 2001
From: davidemazzocchi <davide.mazzocchi@gmail.com>
Date: Sat, 27 Sep 2025 07:26:41 +0200
Subject: [PATCH] feat: add basic structures for EAV modeling (entity,
 attribute, value)

---
 01.workspace/heave/src/fun/mod.rs       |  1 +
 01.workspace/heave/src/imp/mod.rs       |  1 +
 01.workspace/heave/src/lib.rs           |  4 ++++
 01.workspace/heave/src/mcr/mod.rs       |  1 +
 01.workspace/heave/src/str/attribute.rs |  7 +++++++
 01.workspace/heave/src/str/entity.rs    |  7 +++++++
 01.workspace/heave/src/str/mod.rs       |  3 +++
 01.workspace/heave/src/str/value.rs     | 10 ++++++++++
 01.workspace/heave/src/trt/mod.rs       |  1 +
 01.workspace/heave/src/tst/mod.rs       |  1 +
 10 files changed, 36 insertions(+)
 create mode 100644 01.workspace/heave/src/str/attribute.rs
 create mode 100644 01.workspace/heave/src/str/entity.rs
 create mode 100644 01.workspace/heave/src/str/value.rs

diff --git a/01.workspace/heave/src/fun/mod.rs b/01.workspace/heave/src/fun/mod.rs
index e69de29..8b13789 100644
--- a/01.workspace/heave/src/fun/mod.rs
+++ b/01.workspace/heave/src/fun/mod.rs
@@ -0,0 +1 @@
+
diff --git a/01.workspace/heave/src/imp/mod.rs b/01.workspace/heave/src/imp/mod.rs
index e69de29..8b13789 100644
--- a/01.workspace/heave/src/imp/mod.rs
+++ b/01.workspace/heave/src/imp/mod.rs
@@ -0,0 +1 @@
+
diff --git a/01.workspace/heave/src/lib.rs b/01.workspace/heave/src/lib.rs
index 8784c5e..7e685c6 100644
--- a/01.workspace/heave/src/lib.rs
+++ b/01.workspace/heave/src/lib.rs
@@ -6,3 +6,7 @@ mod mcr;
 mod str;
 mod trt;
 mod tst;
+
+pub use crate::str::attribute::O as Attribute;
+pub use crate::str::entity::O as Entity;
+pub use crate::str::value::E as Value;
diff --git a/01.workspace/heave/src/mcr/mod.rs b/01.workspace/heave/src/mcr/mod.rs
index e69de29..8b13789 100644
--- a/01.workspace/heave/src/mcr/mod.rs
+++ b/01.workspace/heave/src/mcr/mod.rs
@@ -0,0 +1 @@
+
diff --git a/01.workspace/heave/src/str/attribute.rs b/01.workspace/heave/src/str/attribute.rs
new file mode 100644
index 0000000..7754589
--- /dev/null
+++ b/01.workspace/heave/src/str/attribute.rs
@@ -0,0 +1,7 @@
+use crate::*;
+
+#[derive(Debug, PartialEq, Clone)]
+pub struct O {
+    pub id: String,
+    pub value: Value,
+}
diff --git a/01.workspace/heave/src/str/entity.rs b/01.workspace/heave/src/str/entity.rs
new file mode 100644
index 0000000..aac1e73
--- /dev/null
+++ b/01.workspace/heave/src/str/entity.rs
@@ -0,0 +1,7 @@
+use crate::*;
+
+#[derive(Debug, Default, PartialEq, Clone)]
+pub struct O {
+    pub class: String,
+    pub attributes: std::collections::HashMap<String, Attribute>,
+}
diff --git a/01.workspace/heave/src/str/mod.rs b/01.workspace/heave/src/str/mod.rs
index e69de29..dd1e5a1 100644
--- a/01.workspace/heave/src/str/mod.rs
+++ b/01.workspace/heave/src/str/mod.rs
@@ -0,0 +1,3 @@
+pub mod attribute;
+pub mod entity;
+pub mod value;
diff --git a/01.workspace/heave/src/str/value.rs b/01.workspace/heave/src/str/value.rs
new file mode 100644
index 0000000..484bea7
--- /dev/null
+++ b/01.workspace/heave/src/str/value.rs
@@ -0,0 +1,10 @@
+use crate::*;
+
+#[derive(Debug, PartialEq, PartialOrd, Clone)]
+pub enum E {
+    Bool(bool),
+    Real(f64),
+    SignedInt(i64),
+    Text(String),
+    UnsignedInt(u64),
+}
diff --git a/01.workspace/heave/src/trt/mod.rs b/01.workspace/heave/src/trt/mod.rs
index e69de29..8b13789 100644
--- a/01.workspace/heave/src/trt/mod.rs
+++ b/01.workspace/heave/src/trt/mod.rs
@@ -0,0 +1 @@
+
diff --git a/01.workspace/heave/src/tst/mod.rs b/01.workspace/heave/src/tst/mod.rs
index e69de29..8b13789 100644
--- a/01.workspace/heave/src/tst/mod.rs
+++ b/01.workspace/heave/src/tst/mod.rs
@@ -0,0 +1 @@
+