ClusterInputs.java

package org.opensha2.calc;

import static com.google.common.base.Preconditions.checkNotNull;

import org.opensha2.eq.model.ClusterSource;

import java.util.AbstractList;
import java.util.ArrayList;
import java.util.List;

/**
 * Lightweight {@code List} wrapper of {@code HazardInput}s corresponding to the
 * {@code FaultSource}s that make up a {@code ClusterSource}. This class
 * contains a reference to the parent {@code ClusterSource} from which the
 * inputs were derived. This allows for downstream access to parent source
 * properties. The {@code List} may only be added to; all other optional
 * operations of {@code AbstractList} throw an
 * {@code UnsupportedOperationException}.
 *
 * @author Peter Powers
 */
final class ClusterInputs extends AbstractList<SourceInputList> {

  final ClusterSource parent;
  final List<SourceInputList> delegate;

  ClusterInputs(ClusterSource parent) {
    this.parent = checkNotNull(parent);
    delegate = new ArrayList<>();
  }

  @Override
  public boolean add(SourceInputList inputs) {
    return delegate.add(inputs);
  }

  @Override
  public SourceInputList get(int index) {
    return delegate.get(index);
  }

  @Override
  public int size() {
    return delegate.size();
  }
}