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294 lines
8.2 KiB
294 lines
8.2 KiB
/*
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* Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*/
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package java.sql;
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import java.time.Instant;
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import java.time.LocalTime;
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/**
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* <P>A thin wrapper around the <code>java.util.Date</code> class that allows the JDBC
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* API to identify this as an SQL <code>TIME</code> value. The <code>Time</code>
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* class adds formatting and
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* parsing operations to support the JDBC escape syntax for time
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* values.
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* <p>The date components should be set to the "zero epoch"
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* value of January 1, 1970 and should not be accessed.
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*/
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public class Time extends java.util.Date {
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/**
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* Constructs a <code>Time</code> object initialized with the
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* given values for the hour, minute, and second.
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* The driver sets the date components to January 1, 1970.
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* Any method that attempts to access the date components of a
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* <code>Time</code> object will throw a
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* <code>java.lang.IllegalArgumentException</code>.
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* <P>
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* The result is undefined if a given argument is out of bounds.
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*
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* @param hour 0 to 23
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* @param minute 0 to 59
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* @param second 0 to 59
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*
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* @deprecated Use the constructor that takes a milliseconds value
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* in place of this constructor
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*/
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@Deprecated
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public Time(int hour, int minute, int second) {
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super(70, 0, 1, hour, minute, second);
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}
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/**
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* Constructs a <code>Time</code> object using a milliseconds time value.
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*
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* @param time milliseconds since January 1, 1970, 00:00:00 GMT;
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* a negative number is milliseconds before
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* January 1, 1970, 00:00:00 GMT
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*/
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public Time(long time) {
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super(time);
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}
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/**
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* Sets a <code>Time</code> object using a milliseconds time value.
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*
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* @param time milliseconds since January 1, 1970, 00:00:00 GMT;
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* a negative number is milliseconds before
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* January 1, 1970, 00:00:00 GMT
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*/
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public void setTime(long time) {
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super.setTime(time);
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}
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/**
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* Converts a string in JDBC time escape format to a <code>Time</code> value.
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*
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* @param s time in format "hh:mm:ss"
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* @return a corresponding <code>Time</code> object
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*/
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public static Time valueOf(String s) {
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int hour;
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int minute;
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int second;
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int firstColon;
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int secondColon;
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if (s == null) throw new java.lang.IllegalArgumentException();
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firstColon = s.indexOf(':');
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secondColon = s.indexOf(':', firstColon+1);
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if ((firstColon > 0) & (secondColon > 0) &
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(secondColon < s.length()-1)) {
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hour = Integer.parseInt(s.substring(0, firstColon));
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minute =
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Integer.parseInt(s.substring(firstColon+1, secondColon));
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second = Integer.parseInt(s.substring(secondColon+1));
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} else {
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throw new java.lang.IllegalArgumentException();
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}
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return new Time(hour, minute, second);
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}
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/**
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* Formats a time in JDBC time escape format.
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*
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* @return a <code>String</code> in hh:mm:ss format
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*/
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@SuppressWarnings("deprecation")
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public String toString () {
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int hour = super.getHours();
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int minute = super.getMinutes();
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int second = super.getSeconds();
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String hourString;
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String minuteString;
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String secondString;
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if (hour < 10) {
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hourString = "0" + hour;
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} else {
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hourString = Integer.toString(hour);
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}
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if (minute < 10) {
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minuteString = "0" + minute;
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} else {
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minuteString = Integer.toString(minute);
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}
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if (second < 10) {
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secondString = "0" + second;
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} else {
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secondString = Integer.toString(second);
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}
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return (hourString + ":" + minuteString + ":" + secondString);
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}
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// Override all the date operations inherited from java.util.Date;
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/**
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* This method is deprecated and should not be used because SQL <code>TIME</code>
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* values do not have a year component.
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*
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* @deprecated
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* @exception java.lang.IllegalArgumentException if this
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* method is invoked
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* @see #setYear
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*/
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@Deprecated
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public int getYear() {
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throw new java.lang.IllegalArgumentException();
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}
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/**
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* This method is deprecated and should not be used because SQL <code>TIME</code>
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* values do not have a month component.
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*
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* @deprecated
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* @exception java.lang.IllegalArgumentException if this
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* method is invoked
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* @see #setMonth
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*/
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@Deprecated
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public int getMonth() {
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throw new java.lang.IllegalArgumentException();
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}
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/**
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* This method is deprecated and should not be used because SQL <code>TIME</code>
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* values do not have a day component.
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*
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* @deprecated
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* @exception java.lang.IllegalArgumentException if this
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* method is invoked
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*/
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@Deprecated
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public int getDay() {
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throw new java.lang.IllegalArgumentException();
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}
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/**
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* This method is deprecated and should not be used because SQL <code>TIME</code>
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* values do not have a date component.
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*
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* @deprecated
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* @exception java.lang.IllegalArgumentException if this
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* method is invoked
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* @see #setDate
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*/
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@Deprecated
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public int getDate() {
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throw new java.lang.IllegalArgumentException();
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}
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/**
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* This method is deprecated and should not be used because SQL <code>TIME</code>
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* values do not have a year component.
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*
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* @deprecated
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* @exception java.lang.IllegalArgumentException if this
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* method is invoked
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* @see #getYear
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*/
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@Deprecated
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public void setYear(int i) {
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throw new java.lang.IllegalArgumentException();
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}
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/**
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* This method is deprecated and should not be used because SQL <code>TIME</code>
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* values do not have a month component.
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*
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* @deprecated
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* @exception java.lang.IllegalArgumentException if this
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* method is invoked
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* @see #getMonth
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*/
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@Deprecated
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public void setMonth(int i) {
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throw new java.lang.IllegalArgumentException();
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}
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/**
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* This method is deprecated and should not be used because SQL <code>TIME</code>
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* values do not have a date component.
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*
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* @deprecated
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* @exception java.lang.IllegalArgumentException if this
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* method is invoked
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* @see #getDate
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*/
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@Deprecated
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public void setDate(int i) {
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throw new java.lang.IllegalArgumentException();
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}
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/**
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* Private serial version unique ID to ensure serialization
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* compatibility.
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*/
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static final long serialVersionUID = 8397324403548013681L;
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/**
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* Obtains an instance of {@code Time} from a {@link LocalTime} object
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* with the same hour, minute and second time value as the given
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* {@code LocalTime}.
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*
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* @param time a {@code LocalTime} to convert
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* @return a {@code Time} object
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* @exception NullPointerException if {@code time} is null
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* @since 1.8
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*/
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@SuppressWarnings("deprecation")
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public static Time valueOf(LocalTime time) {
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return new Time(time.getHour(), time.getMinute(), time.getSecond());
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}
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/**
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* Converts this {@code Time} object to a {@code LocalTime}.
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* <p>
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* The conversion creates a {@code LocalTime} that represents the same
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* hour, minute, and second time value as this {@code Time}.
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*
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* @return a {@code LocalTime} object representing the same time value
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* @since 1.8
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*/
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@SuppressWarnings("deprecation")
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public LocalTime toLocalTime() {
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return LocalTime.of(getHours(), getMinutes(), getSeconds());
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}
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/**
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* This method always throws an UnsupportedOperationException and should
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* not be used because SQL {@code Time} values do not have a date
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* component.
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*
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* @exception java.lang.UnsupportedOperationException if this method is invoked
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*/
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@Override
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public Instant toInstant() {
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throw new java.lang.UnsupportedOperationException();
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}
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}
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