software.amazon.ion.IonTimestamp Maven / Gradle / Ivy
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/*
* Copyright 2007-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* or in the "license" file accompanying this file. This file 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 software.amazon.ion;
import java.math.BigDecimal;
import java.util.Date;
// TODO document local offset viz RFC-3339
/**
* An Ion timestamp value.
*
* WARNING: This interface should not be implemented or extended by
* code outside of this library.
*/
public interface IonTimestamp
extends IonValue
{
// TODO amzn/ion-java/issues/223 Deprecate setters and getters
/**
* Gets the value of this timestamp in a form suitable for
* use independent of Ion data.
*
* @return the value of this timestamp,
* or null if this.isNullValue().
*/
public Timestamp timestampValue();
/**
* Gets the value of this Ion timestamp as a Java
* {@link Date}, representing the time in UTC. As a result, this method
* will return the same result for all Ion representations of the same
* instant, regardless of the local offset.
*
* Because Date instances are mutable, this method returns a
* new instance from each call.
*
* @return a new Date value, in UTC,
* or null if this.isNullValue().
*/
public Date dateValue();
/**
* Gets the value of this Ion timestamp as the number of
* milliseconds since 1970-01-01T00:00:00.000Z, truncating any fractional
* milliseconds.
* This method will return the same result for all Ion representations of
* the same instant, regardless of the local offset.
*
* @return the number of milliseconds since 1970-01-01T00:00:00.000Z
* represented by this timestamp.
* @throws NullValueException if this.isNullValue().
*/
public long getMillis()
throws NullValueException;
/**
* Gets the value of this Ion timestamp as the number of
* milliseconds since 1970-01-01T00:00:00Z, including fractional
* milliseconds.
* This method will return the same result for all Ion representations of
* the same instant, regardless of the local offset.
*
* @return the number of milliseconds since 1970-01-01T00:00:00Z
* represented by this timestamp,
* or null if this.isNullValue().
*/
public BigDecimal getDecimalMillis();
/**
* Sets the value of this {@code timestamp}.
*
* @param timestamp may be {@code null} to cause this to be
* {@code null.timestamp}.
*/
public void setValue(Timestamp timestamp);
/**
* Sets this timestamp to represent the point in time that is
* {@code millis} milliseconds after 1970-01-01T00:00:00Z, with
* the specified local offset of {@code localOffset}.
*
* @param millis
* the number of milliseconds since 1970-01-01T00:00:00Z to
* be represented by this timestamp.
* @param localOffset
* the local offset of this timestamp, in minutes. Zero
* indicates UTC. {@code null} indicates the unknown
* offset ({@code -00:00}).
*
* @throws IllegalArgumentException
* if the resulting timestamp would precede
* 0001-01-01T00:00:00Z.
* @throws NullPointerException
* if {@code millis} is {@code null}
*/
public void setValue(BigDecimal millis, Integer localOffset);
/**
* Sets this timestamp to represent the point in time that is
* {@code millis} milliseconds after 1970-01-01T00:00:00Z, with
* the specified local offset of {@code localOffset}.
*
* @param millis
* the number of milliseconds since 1970-01-01T00:00:00Z to
* be represented by this timestamp.
* @param localOffset
* the local offset of this timestamp, in minutes. Zero
* indicates UTC. {@code null} indicates the unknown
* offset ({@code -00:00}).
*
* @throws IllegalArgumentException
* if the resulting timestamp would precede
* 0001-01-01T00:00:00Z.
*/
public void setValue(long millis, Integer localOffset);
/**
* Sets this timestamp to represent the point in time that is
* millis milliseconds after 1970-01-01T00:00:00Z, with the
* same local offset part.
*
* If this is null.timestamp, then the local offset will be
* unknown.
*
* @param millis the number of milliseconds since 1970-01-01T00:00:00Z to
* be represented by this timestamp.
* @throws IllegalArgumentException if the resulting timestamp would
* precede 0001-01-01T00:00:00Z.
*/
public void setMillis(long millis);
/**
* Sets this timestamp to represent the point in time that is
* millis milliseconds after 1970-01-01T00:00:00Z, with the
* same local offset part.
*
* If this is null.timestamp, then the local offset will be
* unknown.
*
* @param millis the number of milliseconds since 1970-01-01T00:00:00Z to
* be represented by this timestamp.
* @throws IllegalArgumentException if the resulting timestamp would
* precede 0001-01-01T00:00:00Z.
* @throws NullPointerException if {@code millis} is {@code null}
*/
public void setDecimalMillis(BigDecimal millis);
/**
* Sets this timestamp to represent the point in time that is
* millis milliseconds after 1970-01-01T00:00:00Z,
* and sets the local offset to UTC.
*
* @param millis the number of milliseconds since 1970-01-01T00:00:00Z to
* be represented by this timestamp.
*/
public void setMillisUtc(long millis);
/**
* Gets the local offset (in minutes) of this timestamp, or null if
* it's unknown (i.e., -00:00).
*
* For example, the result for 1969-02-23T07:00+07:00 is 420,
* the result for 1969-02-22T22:45:00.00-01:15 is -75, and
* the result for 1969-02-23 (by Ion's definition, equivalent
* to 1969-02-23T00:00-00:00) is null.
*
* @return the positive or negative local-time offset, represented as
* minutes from UTC. If the offset is unknown, returns null.
* @throws NullValueException if this.isNullValue().
*/
public Integer getLocalOffset()
throws NullValueException;
/**
* Sets the time portion of this timestamp.
* If value is null, then this will become
* null.timestamp.
* If this is null.timestamp, then the local offset will be
* unknown.
*
* @param value will be copied into this element. If null then this
* becomes null.timestamp.
*/
public void setTime(Date value);
/**
* Sets the time portion of this timestamp to the current time, leaving the
* local offset portion unchanged.
*
* If this.isNullValue(), then the local offset will be
* unknown.
*/
public void setCurrentTime();
// TODO add setCurrentTimeLocal();
/**
* Sets the time portion of this timestamp to the current time, and the
* local offset portion to UTC.
*/
public void setCurrentTimeUtc();
/**
* Sets the local-offset portion of this timestamp. The time portion is
* not changed. Note that this method cannot set the unknown offset
* (-00:00); to do that use {@link #setLocalOffset(Integer)}.
*
* @param minutes is the new local offset, in minutes. Zero indicates UTC.
* @throws NullValueException if this.isNullValue().
*/
public void setLocalOffset(int minutes)
throws NullValueException;
/**
* Sets the local-offset portion of this timestamp. The time portion is
* not changed.
*
* @param minutes is the new local offset, in minutes. Zero indicates UTC.
* null indicates the unknown offset (-00:00).
* @throws NullValueException if this.isNullValue().
*/
public void setLocalOffset(Integer minutes)
throws NullValueException;
/**
* Sets this timestamp to Ion null.timestamp.
*/
public void makeNull();
public IonTimestamp clone()
throws UnknownSymbolException;
}