/*
* Copyright 2000-2015 JetBrains s.r.o.
*
* 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.intellij.util.xmlb;
import com.intellij.openapi.diagnostic.Logger;
import org.jdom.Element;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.lang.reflect.Type;
import java.util.List;
abstract class Binding {
static final Logger LOG = Logger.getInstance(Binding.class);
protected final MutableAccessor myAccessor;
protected Binding(MutableAccessor accessor) {
myAccessor = accessor;
}
@NotNull
public MutableAccessor getAccessor() {
return myAccessor;
}
@Nullable
public abstract Object serialize(@NotNull Object o, @Nullable Object context, @NotNull SerializationFilter filter);
@Nullable
public Object deserialize(Object context, @NotNull Element element) {
return context;
}
public boolean isBoundTo(@NotNull Element element) {
return false;
}
void init(@NotNull Type originalType) {
// called (and make sense) only if MainBinding
}
@SuppressWarnings("CastToIncompatibleInterface")
@Nullable
public static Object deserializeList(@NotNull Binding binding, Object context, @NotNull List<Element> nodes) {
if (binding instanceof MultiNodeBinding) {
return ((MultiNodeBinding)binding).deserializeList(context, nodes);
}
else {
if (nodes.size() == 1) {
return binding.deserialize(context, nodes.get(0));
}
else if (nodes.isEmpty()) {
return null;
}
else {
throw new AssertionError("Duplicate data for " + binding + " will be ignored");
}
}
}
}