software.xdev.chartjs.model.data.AbstractData Maven / Gradle / Ivy
/*
* Copyright © 2023 XDEV Software (https://xdev.software)
*
* 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 software.xdev.chartjs.model.data;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import software.xdev.chartjs.model.dataset.Dataset;
public abstract class AbstractData, T extends Dataset>
{
private final List labels = new ArrayList<>();
private final List datasets = new ArrayList<>();
/**
* @return unmodifiable list of all labels, never {@code null}
*/
public List getLabels()
{
return Collections.unmodifiableList(this.labels);
}
/**
* Sets the backing label list, replacing any labels previously added or set
*
* @return this object to allow method chaining
*/
public D setLabels(final Collection labels)
{
this.labels.clear();
if(labels != null)
{
this.labels.addAll(labels);
}
return this.self();
}
/**
* Sets the backing label list, replacing any labels previously added or set
*
* @return this object to allow method chaining
*/
public D setLabels(final String... labels)
{
this.labels.clear();
if(labels != null)
{
this.labels.addAll(Arrays.asList(labels));
}
return this.self();
}
/**
* Removes all labels from the backing list
*
* @return this object to allow method chaining
*/
public D clearLabels()
{
this.labels.clear();
return this.self();
}
/**
* Adds the label to the backing label list
*
* @return this object to allow method chaining
*/
public D addLabel(final String label)
{
this.labels.add(label);
return this.self();
}
/**
* Adds the labels to the backing label list
*
* @return this object to allow method chaining
*/
public D addLabels(final String... label)
{
this.labels.addAll(Arrays.asList(label));
return this.self();
}
/**
* @return unmodifiable list of all datasets, never {@code null}
*/
public List getDatasets()
{
return Collections.unmodifiableList(this.datasets);
}
/**
* @return this object to allow method chaining
*/
public D setDatasets(final Collection datasets)
{
this.datasets.clear();
if(datasets != null)
{
this.datasets.addAll(datasets);
}
return this.self();
}
/**
* @return this object to allow method chaining
*/
public D addDataset(final T dataset)
{
this.datasets.add(dataset);
return this.self();
}
@SuppressWarnings("unchecked")
protected D self()
{
return (D)this;
}
}