io.ebeaninternal.server.el.ElComparatorCompound Maven / Gradle / Ivy

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ebean core module

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package io.ebeaninternal.server.el;

import java.util.Comparator;

/**
 * Comparator based on multiple ordered comparators.
 * 
 * eg.  "name, orderDate desc, id"
 * 
 */
public final class ElComparatorCompound implements Comparator, ElComparator {

  private static final long serialVersionUID = -1523163475050929750L;

  private final ElComparator[] array;

  public ElComparatorCompound(ElComparator[] array) {
    this.array = array;
  }

  @Override
  public int compare(T o1, T o2) {
    for (ElComparator anArray : array) {
      int ret = anArray.compare(o1, o2);
      if (ret != 0) {
        return ret;
      }
    }

    return 0;
  }

  @Override
  public int compareValue(Object value, T o2) {
    for (ElComparator anArray : array) {
      int ret = anArray.compareValue(value, o2);
      if (ret != 0) {
        return ret;
      }
    }
    return 0;
  }


}