week.html

jfreechart1。0。2的api。

<FONT color="green">312</FONT>            //return c.getTimeInMillis();  // this won't work for JDK 1.3<a name="line.312"></a>
<FONT color="green">313</FONT>            return c.getTime().getTime();<a name="line.313"></a>
<FONT color="green">314</FONT>        }<a name="line.314"></a>
<FONT color="green">315</FONT>    <a name="line.315"></a>
<FONT color="green">316</FONT>        /**<a name="line.316"></a>
<FONT color="green">317</FONT>         * Returns the last millisecond of the week, evaluated using the supplied<a name="line.317"></a>
<FONT color="green">318</FONT>         * calendar (which determines the time zone).<a name="line.318"></a>
<FONT color="green">319</FONT>         *<a name="line.319"></a>
<FONT color="green">320</FONT>         * @param calendar  the calendar.<a name="line.320"></a>
<FONT color="green">321</FONT>         *<a name="line.321"></a>
<FONT color="green">322</FONT>         * @return The last millisecond of the week.<a name="line.322"></a>
<FONT color="green">323</FONT>         */<a name="line.323"></a>
<FONT color="green">324</FONT>        public long getLastMillisecond(Calendar calendar) {<a name="line.324"></a>
<FONT color="green">325</FONT>            RegularTimePeriod next = next();<a name="line.325"></a>
<FONT color="green">326</FONT>            return next.getFirstMillisecond(calendar) - 1;<a name="line.326"></a>
<FONT color="green">327</FONT>        }<a name="line.327"></a>
<FONT color="green">328</FONT>    <a name="line.328"></a>
<FONT color="green">329</FONT>        /**<a name="line.329"></a>
<FONT color="green">330</FONT>         * Returns a string representing the week (e.g. "Week 9, 2002").<a name="line.330"></a>
<FONT color="green">331</FONT>         *<a name="line.331"></a>
<FONT color="green">332</FONT>         * TODO: look at internationalisation.<a name="line.332"></a>
<FONT color="green">333</FONT>         *<a name="line.333"></a>
<FONT color="green">334</FONT>         * @return A string representing the week.<a name="line.334"></a>
<FONT color="green">335</FONT>         */<a name="line.335"></a>
<FONT color="green">336</FONT>        public String toString() {<a name="line.336"></a>
<FONT color="green">337</FONT>            return "Week " + this.week + ", " + this.year;<a name="line.337"></a>
<FONT color="green">338</FONT>        }<a name="line.338"></a>
<FONT color="green">339</FONT>    <a name="line.339"></a>
<FONT color="green">340</FONT>        /**<a name="line.340"></a>
<FONT color="green">341</FONT>         * Tests the equality of this Week object to an arbitrary object.  Returns<a name="line.341"></a>
<FONT color="green">342</FONT>         * true if the target is a Week instance representing the same week as this<a name="line.342"></a>
<FONT color="green">343</FONT>         * object.  In all other cases, returns false.<a name="line.343"></a>
<FONT color="green">344</FONT>         * @param obj The object.<a name="line.344"></a>
<FONT color="green">345</FONT>         *<a name="line.345"></a>
<FONT color="green">346</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if week and year of this and object are the <a name="line.346"></a>
<FONT color="green">347</FONT>         *         same.<a name="line.347"></a>
<FONT color="green">348</FONT>         */<a name="line.348"></a>
<FONT color="green">349</FONT>        public boolean equals(Object obj) {<a name="line.349"></a>
<FONT color="green">350</FONT>    <a name="line.350"></a>
<FONT color="green">351</FONT>            if (obj == this) {<a name="line.351"></a>
<FONT color="green">352</FONT>                return true;<a name="line.352"></a>
<FONT color="green">353</FONT>            }<a name="line.353"></a>
<FONT color="green">354</FONT>            if (!(obj instanceof Week)) {<a name="line.354"></a>
<FONT color="green">355</FONT>                return false;<a name="line.355"></a>
<FONT color="green">356</FONT>            }<a name="line.356"></a>
<FONT color="green">357</FONT>            Week that = (Week) obj;<a name="line.357"></a>
<FONT color="green">358</FONT>            if (this.week != that.week) {<a name="line.358"></a>
<FONT color="green">359</FONT>                return false;<a name="line.359"></a>
<FONT color="green">360</FONT>            }<a name="line.360"></a>
<FONT color="green">361</FONT>            if (!this.year.equals(that.year)) {<a name="line.361"></a>
<FONT color="green">362</FONT>                return false;<a name="line.362"></a>
<FONT color="green">363</FONT>            }<a name="line.363"></a>
<FONT color="green">364</FONT>            return true;<a name="line.364"></a>
<FONT color="green">365</FONT>    <a name="line.365"></a>
<FONT color="green">366</FONT>        }<a name="line.366"></a>
<FONT color="green">367</FONT>    <a name="line.367"></a>
<FONT color="green">368</FONT>        /**<a name="line.368"></a>
<FONT color="green">369</FONT>         * Returns a hash code for this object instance.  The approach described by<a name="line.369"></a>
<FONT color="green">370</FONT>         * Joshua Bloch in "Effective Java" has been used here:<a name="line.370"></a>
<FONT color="green">371</FONT>         * &lt;p&gt;<a name="line.371"></a>
<FONT color="green">372</FONT>         * &lt;code&gt;http://developer.java.sun.com/developer/Books/effectivejava<a name="line.372"></a>
<FONT color="green">373</FONT>         * /Chapter3.pdf&lt;/code&gt;<a name="line.373"></a>
<FONT color="green">374</FONT>         * <a name="line.374"></a>
<FONT color="green">375</FONT>         * @return A hash code.<a name="line.375"></a>
<FONT color="green">376</FONT>         */<a name="line.376"></a>
<FONT color="green">377</FONT>        public int hashCode() {<a name="line.377"></a>
<FONT color="green">378</FONT>            int result = 17;<a name="line.378"></a>
<FONT color="green">379</FONT>            result = 37 * result + this.week;<a name="line.379"></a>
<FONT color="green">380</FONT>            result = 37 * result + this.year.hashCode();<a name="line.380"></a>
<FONT color="green">381</FONT>            return result;<a name="line.381"></a>
<FONT color="green">382</FONT>        }<a name="line.382"></a>
<FONT color="green">383</FONT>    <a name="line.383"></a>
<FONT color="green">384</FONT>        /**<a name="line.384"></a>
<FONT color="green">385</FONT>         * Returns an integer indicating the order of this Week object relative to<a name="line.385"></a>
<FONT color="green">386</FONT>         * the specified object:<a name="line.386"></a>
<FONT color="green">387</FONT>         *<a name="line.387"></a>
<FONT color="green">388</FONT>         * negative == before, zero == same, positive == after.<a name="line.388"></a>
<FONT color="green">389</FONT>         *<a name="line.389"></a>
<FONT color="green">390</FONT>         * @param o1  the object to compare.<a name="line.390"></a>
<FONT color="green">391</FONT>         *<a name="line.391"></a>
<FONT color="green">392</FONT>         * @return negative == before, zero == same, positive == after.<a name="line.392"></a>
<FONT color="green">393</FONT>         */<a name="line.393"></a>
<FONT color="green">394</FONT>        public int compareTo(Object o1) {<a name="line.394"></a>
<FONT color="green">395</FONT>    <a name="line.395"></a>
<FONT color="green">396</FONT>            int result;<a name="line.396"></a>
<FONT color="green">397</FONT>    <a name="line.397"></a>
<FONT color="green">398</FONT>            // CASE 1 : Comparing to another Week object<a name="line.398"></a>
<FONT color="green">399</FONT>            // --------------------------------------------<a name="line.399"></a>
<FONT color="green">400</FONT>            if (o1 instanceof Week) {<a name="line.400"></a>
<FONT color="green">401</FONT>                Week w = (Week) o1;<a name="line.401"></a>
<FONT color="green">402</FONT>                result = this.year.getYear() - w.getYear().getYear();<a name="line.402"></a>
<FONT color="green">403</FONT>                if (result == 0) {<a name="line.403"></a>
<FONT color="green">404</FONT>                    result = this.week - w.getWeek();<a name="line.404"></a>
<FONT color="green">405</FONT>                }<a name="line.405"></a>
<FONT color="green">406</FONT>            }<a name="line.406"></a>
<FONT color="green">407</FONT>    <a name="line.407"></a>
<FONT color="green">408</FONT>            // CASE 2 : Comparing to another TimePeriod object<a name="line.408"></a>
<FONT color="green">409</FONT>            // -----------------------------------------------<a name="line.409"></a>
<FONT color="green">410</FONT>            else if (o1 instanceof RegularTimePeriod) {<a name="line.410"></a>
<FONT color="green">411</FONT>                // more difficult case - evaluate later...<a name="line.411"></a>
<FONT color="green">412</FONT>                result = 0;<a name="line.412"></a>
<FONT color="green">413</FONT>            }<a name="line.413"></a>
<FONT color="green">414</FONT>    <a name="line.414"></a>
<FONT color="green">415</FONT>            // CASE 3 : Comparing to a non-TimePeriod object<a name="line.415"></a>
<FONT color="green">416</FONT>            // ---------------------------------------------<a name="line.416"></a>
<FONT color="green">417</FONT>            else {<a name="line.417"></a>
<FONT color="green">418</FONT>                // consider time periods to be ordered after general objects<a name="line.418"></a>
<FONT color="green">419</FONT>                result = 1;<a name="line.419"></a>
<FONT color="green">420</FONT>            }<a name="line.420"></a>
<FONT color="green">421</FONT>    <a name="line.421"></a>
<FONT color="green">422</FONT>            return result;<a name="line.422"></a>
<FONT color="green">423</FONT>    <a name="line.423"></a>
<FONT color="green">424</FONT>        }<a name="line.424"></a>
<FONT color="green">425</FONT>    <a name="line.425"></a>
<FONT color="green">426</FONT>        /**<a name="line.426"></a>
<FONT color="green">427</FONT>         * Parses the string argument as a week.<a name="line.427"></a>
<FONT color="green">428</FONT>         * &lt;P&gt;<a name="line.428"></a>
<FONT color="green">429</FONT>         * This method is required to accept the format "YYYY-Wnn".  It will also<a name="line.429"></a>
<FONT color="green">430</FONT>         * accept "Wnn-YYYY". Anything else, at the moment, is a bonus.<a name="line.430"></a>
<FONT color="green">431</FONT>         *<a name="line.431"></a>
<FONT color="green">432</FONT>         * @param s  string to parse.<a name="line.432"></a>
<FONT color="green">433</FONT>         *<a name="line.433"></a>
<FONT color="green">434</FONT>         * @return &lt;code&gt;null&lt;/code&gt; if the string is not parseable, the week <a name="line.434"></a>
<FONT color="green">435</FONT>         *         otherwise.<a name="line.435"></a>
<FONT color="green">436</FONT>         */<a name="line.436"></a>
<FONT color="green">437</FONT>        public static Week parseWeek(String s) {<a name="line.437"></a>
<FONT color="green">438</FONT>    <a name="line.438"></a>
<FONT color="green">439</FONT>            Week result = null;<a name="line.439"></a>
<FONT color="green">440</FONT>            if (s != null) {<a name="line.440"></a>
<FONT color="green">441</FONT>    <a name="line.441"></a>
<FONT color="green">442</FONT>                // trim whitespace from either end of the string<a name="line.442"></a>
<FONT color="green">443</FONT>                s = s.trim();<a name="line.443"></a>
<FONT color="green">444</FONT>    <a name="line.444"></a>
<FONT color="green">445</FONT>                int i = Week.findSeparator(s);<a name="line.445"></a>
<FONT color="green">446</FONT>                if (i != -1) {<a name="line.446"></a>
<FONT color="green">447</FONT>                    String s1 = s.substring(0, i).trim();<a name="line.447"></a>
<FONT color="green">448</FONT>                    String s2 = s.substring(i + 1, s.length()).trim();<a name="line.448"></a>
<FONT color="green">449</FONT>    <a name="line.449"></a>
<FONT color="green">450</FONT>                    Year y = Week.evaluateAsYear(s1);<a name="line.450"></a>
<FONT color="green">451</FONT>                    int w;<a name="line.451"></a>
<FONT color="green">452</FONT>                    if (y != null) {<a name="line.452"></a>
<FONT color="green">453</FONT>                        w = Week.stringToWeek(s2);<a name="line.453"></a>
<FONT color="green">454</FONT>                        if (w == -1) {<a name="line.454"></a>
<FONT color="green">455</FONT>                            throw new TimePeriodFormatException(<a name="line.455"></a>
<FONT color="green">456</FONT>                                "Can't evaluate the week."<a name="line.456"></a>
<FONT color="green">457</FONT>                            );<a name="line.457"></a>
<FONT color="green">458</FONT>                        }<a name="line.458"></a>
<FONT color="green">459</FONT>                        result = new Week(w, y);<a name="line.459"></a>
<FONT color="green">460</FONT>                    }<a name="line.460"></a>
<FONT color="green">461</FONT>                    else {<a name="line.461"></a>
<FONT color="green">462</FONT>                        y = Week.evaluateAsYear(s2);<a name="line.462"></a>
<FONT color="green">463</FONT>                        if (y != null) {<a name="line.463"></a>
<FONT color="green">464</FONT>                            w = Week.stringToWeek(s1);<a name="line.464"></a>
<FONT color="green">465</FONT>                            if (w == -1) {<a name="line.465"></a>
<FONT color="green">466</FONT>                                throw new TimePeriodFormatException(<a name="line.466"></a>
<FONT color="green">467</FONT>                                    "Can't evaluate the week."<a name="line.467"></a>
<FONT color="green">468</FONT>                                );<a name="line.468"></a>