tech.tablesaw.index.DateIndex Maven / Gradle / Ivy
/*
* 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 tech.tablesaw.index;
import java.time.LocalDate;
import tech.tablesaw.api.DateColumn;
import tech.tablesaw.columns.packeddata.PackedLocalDate;
import tech.tablesaw.util.Selection;
/**
* An index for four-byte integer and Date columns
*/
public class DateIndex {
private final IntIndex index;
public DateIndex(DateColumn column) {
index = new IntIndex(column);
}
/**
* Returns a bitmap containing row numbers of all cells matching the given int
*
* @param value This is a 'key' from the index perspective, meaning it is a value from the standpoint of the column
*/
public Selection get(LocalDate value) {
return index.get(PackedLocalDate.pack(value));
}
public Selection atLeast(LocalDate value) {
return index.atLeast(PackedLocalDate.pack(value));
}
public Selection greaterThan(LocalDate value) {
return index.greaterThan(PackedLocalDate.pack(value));
}
public Selection atMost(LocalDate value) {
return index.atMost(PackedLocalDate.pack(value));
}
public Selection lessThan(LocalDate value) {
return index.lessThan(PackedLocalDate.pack(value));
}
}