Populate model/ hierarchy

[yangtools.git] / yang / yang-model-api / src / main / java / org / opendaylight / yangtools / yang / model / api / meta / DeclaredStatement.java

diff --git a/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/api/meta/DeclaredStatement.java b/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/api/meta/DeclaredStatement.java
deleted file mode 100644 (file)
index 11e5bb1..0000000
--- a/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/api/meta/DeclaredStatement.java
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-package org.opendaylight.yangtools.yang.model.api.meta;
-
-import static java.util.Objects.requireNonNull;
-
-import com.google.common.annotations.Beta;
-import com.google.common.collect.Collections2;
-import java.util.Collection;
-import java.util.Optional;
-import java.util.stream.Stream;
-import org.eclipse.jdt.annotation.NonNull;
-import org.eclipse.jdt.annotation.Nullable;
-
-/**
- * Represents declared statement.
- *
- * @param <A> Argument type ({@link Void} if statement does not have argument.)
- */
-public interface DeclaredStatement<A> extends ModelStatement<A> {
-    /**
-     * Returns statement argument as was present in original source.
-     *
-     * @return statement argument as was present in original source or null, if statement does not take argument.
-     */
-    @Nullable String rawArgument();
-
-    /**
-     * Returns collection of explicitly declared child statements, while preserving its original ordering from original
-     * source.
-     *
-     * @return Collection of statements, which were explicitly declared in source of model.
-     */
-    @NonNull Collection<? extends DeclaredStatement<?>> declaredSubstatements();
-
-    /**
-     * Returns collection of explicitly declared child statements, while preserving its original ordering from original
-     * source.
-     *
-     * @param <T> substatement type
-     * @param type {@link DeclaredStatement} type
-     * @return Collection of statements, which were explicitly declared in source of model.
-     * @throws NullPointerException if {@code type} is null
-     */
-    default <T extends DeclaredStatement<?>> @NonNull Collection<? extends T> declaredSubstatements(
-            final Class<T> type) {
-        requireNonNull(type);
-        return Collections2.transform(Collections2.filter(declaredSubstatements(), type::isInstance), type::cast);
-    }
-
-    /**
-     * Returns a {@link DeclarationReference} associated with this statement, if available.
-     *
-     * @apiNote
-     *     This method does not contribute any semantic information and is provided purely as a conduit for
-     *     implementation-specific information where a statement instance came from.
-     *
-     * @implSpec
-     *     The default implementation returns {@link Optional#empty()}.
-     *
-     * @return A {@link DeclarationReference} associated with this statement or {@link Optional#empty()}.
-     */
-    @Beta
-    default @NonNull Optional<DeclarationReference> declarationReference() {
-        return Optional.empty();
-    }
-
-    /**
-     * Find the first effective substatement of specified type.
-     *
-     * @param <T> substatement type
-     * @param type {@link DeclaredStatement} type
-     * @return First declared substatement, or empty if no match is found.
-     * @throws NullPointerException if {@code type} is null
-     */
-    @Beta
-    default <T extends DeclaredStatement<?>> @NonNull Optional<T> findFirstDeclaredSubstatement(
-            @NonNull final Class<T> type) {
-        requireNonNull(type);
-        return streamDeclaredSubstatements(type).filter(type::isInstance).findFirst().map(type::cast);
-    }
-
-    /**
-     * Find the first declared substatement of specified type and return its value.
-     *
-     * @param <T> substatement type
-     * @param <V> substatement argument type
-     * @param type {@link DeclaredStatement} type
-     * @return First declared substatement's argument, or empty if no match is found.
-     * @throws NullPointerException if {@code type} is null
-     */
-    @Beta
-    default <V, T extends DeclaredStatement<V>> @NonNull Optional<V> findFirstDeclaredSubstatementArgument(
-            @NonNull final Class<T> type) {
-        return findFirstDeclaredSubstatement(type).map(DeclaredStatement::argument);
-    }
-
-    /**
-     * Find all declared substatements of specified type and return them as a stream.
-     *
-     * @param <T> substatement type
-     * @param type {@link DeclaredStatement} type
-     * @return A stream of all declared substatements of specified type.
-     * @throws NullPointerException if {@code type} is null
-     */
-    @Beta
-    default <T extends DeclaredStatement<?>> @NonNull Stream<T> streamDeclaredSubstatements(
-            @NonNull final Class<T> type) {
-        requireNonNull(type);
-        return declaredSubstatements().stream().filter(type::isInstance).map(type::cast);
-    }
-}