com.google.gerrit.client.rpc.NativeList.java Source code

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Here is the source code for com.google.gerrit.client.rpc.NativeList.java

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// Copyright (C) 2012 The Android Open Source Project
//
// 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.google.gerrit.client.rpc;

import com.google.gwt.core.client.JavaScriptObject;

import java.util.AbstractList;
import java.util.List;

/** A read-only list of native JavaScript objects stored in a JSON array. */
public class NativeList<T extends JavaScriptObject> extends JavaScriptObject {
    protected NativeList() {
    }

    public final List<T> asList() {
        return new AbstractList<T>() {
            @Override
            public T set(int index, T element) {
                T old = NativeList.this.get(index);
                NativeList.this.set0(index, element);
                return old;
            }

            @Override
            public T get(int index) {
                return NativeList.this.get(index);
            }

            @Override
            public int size() {
                return NativeList.this.size();
            }
        };
    }

    public final boolean isEmpty() {
        return size() == 0;
    }

    public final native int size() /*-{ return this.length; }-*/;

    public final native T get(int i) /*-{ return this[i]; }-*/;

    private final native void set0(int i, T v) /*-{ this[i] = v; }-*/;
}