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/*
* Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance
* with the License. A copy of the License is located at
*
* http://aws.amazon.com/apache2.0/
*
* or in the "license" file accompanying this file. This file 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 ai.djl.training.tracker;
/**
* {@link FixedTracker} is an implementation of {@link Tracker} which returns a fixed value.
*
* @see Tracker
*/
class FixedTracker implements Tracker {
private float value;
/**
* Creates a new instance of {@link FixedTracker}.
*
* @param builder the builder used to build this object
*/
public FixedTracker(Builder builder) {
this.value = builder.value;
}
/** {@inheritDoc} */
@Override
public float getNewValue(int numUpdate) {
return value;
}
/**
* Creates a builder to build a {@link FixedTracker}.
*
* @return a new builder
*/
public static Builder builder() {
return new Builder();
}
/** The Builder to construct an {@link FixedTracker} object. */
public static final class Builder {
private float value;
private Builder() {}
public Builder setValue(float value) {
this.value = value;
return this;
}
/**
* Builds a {@link FixedTracker} block.
*
* @return the {@link FixedTracker} block
*/
public FixedTracker build() {
return new FixedTracker(this);
}
}
}