/*
 * Copyright (C) 2016 Stefan Henß
 *
 * 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.insightml.models.general;

import com.insightml.data.samples.Sample;
import com.insightml.models.AbstractLearner;
import com.insightml.models.LearnerInput;

public final class ConstantBaseline<E> extends AbstractLearner<Sample, Object, E> {
	private final E constant;

	public ConstantBaseline(final E constant) {
		super(null);
		this.constant = constant;
	}

	@Override
	public ConstantModel<E> run(final LearnerInput<? extends Sample, ? extends Object> input) {
		return new ConstantModel<>(constant);
	}

	@Override
	public String getName() {
		return "Const{" + constant + "}";
	}
}

/*
 * Copyright (C) 2016 Stefan Henß
 *
 * 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.insightml.models.general;

import com.insightml.data.samples.Sample;
import com.insightml.models.AbstractLearner;
import com.insightml.models.LearnerInput;
import com.insightml.utils.Arguments;

public final class ConstantBaseline<E> extends AbstractLearner<Sample, Object, E> {
	private final E constant;

	public ConstantBaseline(final E constant) {
		super(new Arguments());
		this.constant = constant;
	}

	@Override
	public ConstantModel<E> run(final LearnerInput<? extends Sample, ? extends Object> input) {
		return new ConstantModel<>(constant);
	}

	@Override
	public String getName() {
		return "Const{" + constant + "}";
	}
}

Fix NPE