com.facebook.presto.jdbc.internal.joda.time.convert.PartialConverter Maven / Gradle / Ivy
/*
* Copyright 2001-2006 Stephen Colebourne
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License 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 com.facebook.presto.jdbc.internal.joda.time.convert;
import com.facebook.presto.jdbc.internal.joda.time.Chronology;
import com.facebook.presto.jdbc.internal.joda.time.DateTimeZone;
import com.facebook.presto.jdbc.internal.joda.time.ReadablePartial;
import com.facebook.presto.jdbc.internal.joda.time.format.DateTimeFormatter;
/**
* PartialConverter defines how an object is converted to a ReadablePartial.
*
* The two methods in this interface must be called in order, as the
* getPartialValues method relies on the result of the
* getChronology method being passed in.
*
* @author Stephen Colebourne
* @since 1.0
*/
public interface PartialConverter extends Converter {
/**
* Extracts the chronology from an object of this converter's type
* where the time zone is specified.
*
* @param object the object to convert
* @param zone the specified zone to use, null means default zone
* @return the chronology, never null
* @throws ClassCastException if the object is invalid
* @since 1.3
*/
Chronology getChronology(Object object, DateTimeZone zone);
/**
* Extracts the chronology from an object of this converter's type
* where the chronology is specified.
*
* @param object the object to convert
* @param chrono the chronology to use, null usually means ISO
* @return the chronology, not converted to UTC/local time zone, must be non-null valid
* @throws ClassCastException if the object is invalid
*/
Chronology getChronology(Object object, Chronology chrono);
/**
* Extracts the values of the partial from an object of this converter's type.
* The chrono parameter is a hint to the converter, should it require a
* chronology to aid in conversion.
*
* @param fieldSource a partial that provides access to the fields.
* This partial may be incomplete and only getFieldType(int) should be used
* @param object the object to convert
* @param chrono the chronology to use, which is the non-null result of getChronology()
* @return the array of field values that match the fieldSource, must be non-null valid
* @throws ClassCastException if the object is invalid
*/
int[] getPartialValues(ReadablePartial fieldSource, Object object, Chronology chrono);
/**
* Extracts the values of the partial from an object of this converter's type.
* The chrono parameter is a hint to the converter, should it require a
* chronology to aid in conversion.
*
* @param fieldSource a partial that provides access to the fields.
* This partial may be incomplete and only getFieldType(int) should be used
* @param object the object to convert
* @param chrono the chronology to use, which is the non-null result of getChronology()
* @param parser if converting from a String, the given parser is preferred
* @return the array of field values that match the fieldSource, must be non-null valid
* @throws ClassCastException if the object is invalid
* @since 1.3
*/
int[] getPartialValues(ReadablePartial fieldSource, Object object, Chronology chrono,
DateTimeFormatter parser);
}