com.opengamma.livedata.LiveDataValueUpdateBean.java Source code

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Here is the source code for com.opengamma.livedata.LiveDataValueUpdateBean.java

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/**
 * Copyright (C) 2009 - present by OpenGamma Inc. and the OpenGamma group of companies
 *
 * Please see distribution for license.
 */
package com.opengamma.livedata;

import java.io.Serializable;

import org.apache.commons.lang.ObjectUtils;
import org.fudgemsg.FudgeMsg;

import com.opengamma.util.PublicAPI;

/**
 * A simple implementation of a market data update sent from server to client. 
 */
@PublicAPI
public class LiveDataValueUpdateBean implements LiveDataValueUpdate, Serializable {

    /** Serialization version. */
    private static final long serialVersionUID = 1L;

    /**
     * The sequence number.
     */
    private final long _sequenceNumber;
    /**
     * The live data specification.
     */
    private final LiveDataSpecification _specification;
    /**
     * The data fields.
     */
    private final FudgeMsg _fieldContainer;

    /**
     * Creates an instance.
     * 
     * @param sequenceNumber  the sequence number
     * @param specification  the specification
     * @param fieldContainer  the fields held as a Fudge message
     */
    public LiveDataValueUpdateBean(long sequenceNumber, LiveDataSpecification specification,
            FudgeMsg fieldContainer) {
        // TODO kirk 2009-09-29 -- Check Inputs.
        _sequenceNumber = sequenceNumber;
        _specification = specification;
        _fieldContainer = fieldContainer;
    }

    //-------------------------------------------------------------------------
    @Override
    public long getSequenceNumber() {
        return _sequenceNumber;
    }

    @Override
    public LiveDataSpecification getSpecification() {
        return _specification;
    }

    @Override
    public FudgeMsg getFields() {
        return _fieldContainer;
    }

    //-------------------------------------------------------------------------
    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof LiveDataValueUpdateBean) {
            LiveDataValueUpdateBean other = (LiveDataValueUpdateBean) obj;
            return _sequenceNumber == other._sequenceNumber
                    && ObjectUtils.equals(_specification, other._specification)
                    && ObjectUtils.equals(_fieldContainer, other._fieldContainer);
        }
        return false;
    }

    @Override
    public int hashCode() {
        return ((int) (_sequenceNumber ^ (_sequenceNumber >>> 32))) ^ ObjectUtils.hashCode(_specification)
                ^ ObjectUtils.hashCode(_fieldContainer);
    }

    @Override
    public String toString() {
        StringBuilder buf = new StringBuilder();
        buf.append("LiveDataValueUpdateBean[");
        buf.append(_sequenceNumber);
        buf.append(", ");
        buf.append(_specification);
        buf.append(", ");
        buf.append(_fieldContainer);
        buf.append("]");
        return buf.toString();
    }

}