org.directwebremoting.guice.InitParamImpl Maven / Gradle / Ivy

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DWR is easy Ajax for Java. It makes it simple to call Java code directly from Javascript. It gets rid of almost all the boiler plate code between the web browser and your Java code.

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/*
 * Copyright 2007 Tim Peierls
 *
 * 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 org.directwebremoting.guice;

import java.lang.annotation.Annotation;


class InitParamImpl implements InitParam
{
    public InitParamImpl(ParamName value)
    {
        assert value != null;
        this.value = value;
        this.id = 0L;
    }

    public InitParamImpl(ParamName value, long id)
    {
        assert value != null;
        this.value = value;
        this.id = id;
    }

    public ParamName value()
    {
        return this.value;
    }

    public long id()
    {
        return this.id;
    }

    public Class annotationType()
    {
        return InitParam.class;
    }

    @Override
    public boolean equals(Object t)
    {
        if (!(t instanceof InitParam))
        {
            return false;
        }

        InitParam that = (InitParam) t;
        return this.value.equals(that.value()) && this.id() == that.id();
    }

    @Override
    public int hashCode()
    {
        // Annotation spec sez:
        return (127 * "value".hashCode() ^ value.hashCode())
             + (127 * "id".hashCode() ^ (int)(id ^ (id >>> 32)));
    }

    @Override
    public String toString()
    {
        return String.format("@%s(value=%s, id=%d)", InitParam.class.getName(), value, id);
    }

    private final ParamName value;
    private final long id;
}