1 files changed, 88 insertions, 0 deletions
diff --git a/model/src/main/java/org/onap/policy/apex/model/eventmodel/concepts/AxInputField.java b/model/src/main/java/org/onap/policy/apex/model/eventmodel/concepts/AxInputField.java
new file mode 100644
index 000000000..6155c7186
--- /dev/null
+++ b/model/src/main/java/org/onap/policy/apex/model/eventmodel/concepts/AxInputField.java
@@ -0,0 +1,88 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ *  Modifications Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.apex.model.eventmodel.concepts;
+
+import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.policy.apex.model.basicmodel.concepts.AxReferenceKey;
+
+/**
+ * This class specializes the {@link AxField} class for use as input fields on events.
+ */
+public class AxInputField extends AxField {
+    private static final long serialVersionUID = 2090324845463750391L;
+
+    /**
+     * The default constructor creates a field with a null artifact and schema key.
+     */
+    public AxInputField() {
+        super();
+    }
+
+    /**
+     * The default constructor creates a field with the given artifact key and a null schema key.
+     *
+     * @param key the field key
+     */
+    public AxInputField(final AxReferenceKey key) {
+        super(key);
+    }
+
+    /**
+     * Constructor to create the field with both its keys defined.
+     *
+     * @param key the field key
+     * @param fieldSchemaKey the key of the field schema to use for this field
+     */
+    public AxInputField(final AxReferenceKey key, final AxArtifactKey fieldSchemaKey) {
+        super(key, fieldSchemaKey);
+    }
+
+    /**
+     * Constructor to create the field with both its keys defined and optional flag specified.
+     *
+     * @param key the field key
+     * @param fieldSchemaKey the key of the field schema to use for this field
+     * @param optional true if the task field is optional, false otherwise
+     */
+    public AxInputField(final AxReferenceKey key, final AxArtifactKey fieldSchemaKey, final boolean optional) {
+        super(key, fieldSchemaKey, optional);
+    }
+
+    /**
+     * Constructor to create the field with the local name of its reference key defined and its schema key defined.
+     *
+     * @param localName the local name of the field reference key
+     * @param fieldSchemaKey the key of the field schema to use for this field
+     */
+    public AxInputField(final String localName, final AxArtifactKey fieldSchemaKey) {
+        super(localName, fieldSchemaKey);
+    }
+
+    /**
+     * Copy constructor, create an input field as a copy of another input field.
+     *
+     * @param field the input field to copy from
+     */
+    public AxInputField(final AxInputField field) {
+        super(new AxReferenceKey(field.getKey()), new AxArtifactKey(field.getSchema()), field.getOptional());
+    }
+}