com.github.chaosfirebolt.converter.api.cache.NoOpCache Maven / Gradle / Ivy

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package com.github.chaosfirebolt.converter.api.cache;

import java.util.Optional;
import java.util.function.Function;
import java.util.function.Supplier;

/**
 * Does not cache anything, computes value every time.
 *
 * @param  type of the key, by which the value is saved
 * @param  type of the cached value
 * @deprecated Deprecated since version 3.3.0
 */
@Deprecated(since = "3.3.0", forRemoval = true)
public abstract class NoOpCache extends BaseCache {

  /**
   * @param computation       function to compute the value, if a cache is not found
   * @param exceptionSupplier supplier for an exception to be thrown, if a value can't be returned
   */
  protected NoOpCache(Function computation, Supplier exceptionSupplier) {
    super(computation, exceptionSupplier);
  }

  @Override
  protected Optional computeIfAbsent(K key, Function computation) {
    return Optional.ofNullable(computation.apply(key));
  }

  @Override
  public void clear() {
  }
}