Java tutorial
/* * 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. */ package com.addthis.bundle.value; import java.util.Iterator; import java.util.Map; import com.google.common.collect.Iterators; import com.google.common.collect.Maps; import com.fasterxml.jackson.databind.annotation.JsonDeserialize; @JsonDeserialize(as = HashValueMap.class) public interface ValueMap extends ValueObject, Map<String, ValueObject>, Iterable<ValueMapEntry> { @Override public default Iterator<ValueMapEntry> iterator() { return Iterators.transform(entrySet().iterator(), DelegatingValueMapEntry::new); } @Override public default ValueMap asMap() throws ValueTranslationException { return this; } @Override public default TYPE getObjectType() { return TYPE.MAP; } @Override public default Map<String, Object> asNative() { return Maps.transformValues(this, AsNative.INSTANCE); } }