pre-release 0.10.0

rl_coach/memories/memory.py

@@ -0,0 +1,67 @@
+#
+# Copyright (c) 2017 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from enum import Enum
+from typing import Tuple
+
+from rl_coach.base_parameters import Parameters
+
+
+class MemoryGranularity(Enum):
+    Transitions = 0
+    Episodes = 1
+
+
+class MemoryParameters(Parameters):
+    def __init__(self):
+        super().__init__()
+        self.max_size = None
+        self.shared_memory = False
+        self.load_memory_from_file_path = None
+
+
+    @property
+    def path(self):
+        return 'rl_coach.memories.memory:Memory'
+
+
+class Memory(object):
+    def __init__(self, max_size: Tuple[MemoryGranularity, int]):
+        """
+        :param max_size: the maximum number of objects to hold in the memory
+        """
+        self.max_size = max_size
+        self._length = 0
+
+    def store(self, obj):
+        raise NotImplementedError("")
+
+    def get(self, index):
+        raise NotImplementedError("")
+
+    def remove(self, index):
+        raise NotImplementedError("")
+
+    def length(self):
+        raise NotImplementedError("")
+
+    def sample(self, size):
+        raise NotImplementedError("")
+
+    def clean(self):
+        raise NotImplementedError("")
+
+