package io.ebeaninternal.server.expression;

import java.util.Collection;
import java.util.Iterator;

Utility to help isSame methods.
/** * Utility to help isSame methods. */
public class Same {
Return true if both values are null or both an not null.
/** * Return true if both values are null or both an not null. */
public static boolean sameByNull(Object v1, Object v2) { return v1 == null ? v2 == null : v2 != null; }
Null safe equals check.
/** * Null safe equals check. */
public static boolean sameByValue(Object v1, Object v2) { return v1 == null ? v2 == null : v1.equals(v2); }
Return true if both collections are the same by value and order is taken into account.
/** * Return true if both collections are the same by value and order is taken into account. */
public static boolean sameByValue(Collection<?> v1, Collection<?> v2) { if (v1 == null) { return v2 == null; } if (v2 == null || v1.size() != v2.size()) { return false; } Iterator<?> thisIt = v1.iterator(); Iterator<?> thatIt = v2.iterator(); while (thisIt.hasNext() && thatIt.hasNext()) { if (!thisIt.next().equals(thatIt.next())) { return false; } } return true; }
Null safe check by sameByValue or sameByNull based on byValue.
/** * Null safe check by sameByValue or sameByNull based on byValue. */
public static boolean sameBy(boolean byValue, Object value, Object value1) { if (byValue) { return sameByValue(value, value1); } else { return sameByNull(value, value1); } } }