Example usage for org.joda.time.base AbstractInstant compareTo

Introduction

In this page you can find the example usage for org.joda.time.base AbstractInstant compareTo.

Prototype

public int compareTo(ReadableInstant other) 

Source Link

Document

Compares this object with the specified object for ascending millisecond instant order.

Usage

From source file:nl.knaw.dans.common.lang.repo.AbstractTimestampedObject.java

License:Apache License

/**
 * Compare date with compareDate./*  w w w.  j ava  2 s  .  c o  m*/
 * 
 * @param date
 *        one of the objects recognized in <a
 *        href="http://joda-time.sourceforge.net/api-release/org/joda/time/convert/ConverterManager.html"
 *        >ConverterManager</a>
 * @param compareDate
 *        one of the objects recognized in <a
 *        href="http://joda-time.sourceforge.net/api-release/org/joda/time/convert/ConverterManager.html"
 *        >ConverterManager</a>
 * @return negative value if date is less, 0 if equal, or positive value if greater. 0 if one of the parameters is
 *         null.
 * @throws IllegalArgumentException
 *         if date or compareDate could not be converted.
 */
public static int compare(final Object date, final Object compareDate) throws IllegalArgumentException {
    AbstractInstant dateTime;
    AbstractInstant compareDateTime;
    if (date == null) {
        LOGGER.warn("Could not determine ancienity: date is null.");
        return 0;
    } else if (compareDate == null) {
        LOGGER.warn("Could not determine ancienity: compareDate is null.");
        return 0;
    }

    if (date instanceof AbstractInstant) {
        dateTime = (AbstractInstant) date;
    } else {
        dateTime = new DateTime(date);
    }

    if (compareDate instanceof AbstractInstant) {
        compareDateTime = (AbstractInstant) compareDate;
    } else {
        compareDateTime = new DateTime(compareDate);
    }
    return dateTime.compareTo(compareDateTime);
}

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