tech.tablesaw.columns.booleans.BooleanMapUtils 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.columns.booleans;
import tech.tablesaw.api.BooleanColumn;
import tech.tablesaw.columns.Column;
import tech.tablesaw.selection.Selection;
/**
* An interface for mapping operations unique to Boolean columns
*/
public interface BooleanMapUtils extends Column {
/*
* Returns a Boolean column made by and-ing this column with the arguments
*/
default BooleanColumn and(BooleanColumn... columns) {
String name = name() + " and: ";
Selection selection = asSelection();
for (BooleanColumn column : columns) {
if (! column.name().equals(columns[0].name())) {
name += ", ";
}
name += column.name();
selection.and(column.asSelection());
}
return BooleanColumn.create(name, selection, size());
}
default BooleanColumn or(BooleanColumn... columns) {
String name = name() + " or: ";
Selection selection = asSelection();
for (BooleanColumn column : columns) {
if (! column.name().equals(columns[0].name())) {
name += ", ";
}
name += column.name();
selection.or(column.asSelection());
}
return BooleanColumn.create(name, selection, size());
}
/**
* Returns a column made by combining the receiver and each of the arguments using the operation: A andNot V.
* For example, the value of a cell in the result column would be true if the corresponding value in A is true and
* the corresponding value in B is false
*/
default BooleanColumn andNot(BooleanColumn... columns) {
String name = name() + " and not: ";
Selection selection = asSelection();
for (BooleanColumn column : columns) {
if (! column.name().equals(columns[0].name())) {
name += ", ";
}
name += column.name();
selection.andNot(column.asSelection());
}
return BooleanColumn.create(name, selection, size());
}
Selection asSelection();
}