How to use

buildDeleteExpression

method

in

org.eclipse.persistence.internal.descriptors.OptimisticLockingPolicy

/**
 * Build and return the expression to use as the where clause to delete an object.
 * The row is passed to allow the version number to be extracted from it.
 * If called with usesOptimisticLocking==true the caller should make sure that descriptor uses optimistic locking policy.
 */
public Expression buildDeleteExpression(DatabaseTable table, AbstractRecord row, boolean usesOptimisticLocking) {
  if (usesOptimisticLocking && (this.descriptor.getTables().firstElement().equals(table))) {
    return this.descriptor.getOptimisticLockingPolicy().buildDeleteExpression(table, primaryKeyExpression, row);
  } else {
    return buildPrimaryKeyExpression(table);
  }
}

/**
 * Build and return the expression to use as the where clause to delete an object.
 * The row is passed to allow the version number to be extracted from it.
 * If called with usesOptimisticLocking==true the caller should make sure that descriptor uses optimistic locking policy.
 */
public Expression buildDeleteExpression(DatabaseTable table, AbstractRecord row, boolean usesOptimisticLocking) {
  if (usesOptimisticLocking && (this.descriptor.getTables().firstElement().equals(table))) {
    return this.descriptor.getOptimisticLockingPolicy().buildDeleteExpression(table, primaryKeyExpression, row);
  } else {
    return buildPrimaryKeyExpression(table);
  }
}

/**
 * Build and return the expression to use as the where clause to delete an object.
 * The row is passed to allow the version number to be extracted from it.
 */
public Expression buildDeleteExpression(DatabaseTable table, AbstractRecord row) {
  if (this.descriptor.usesOptimisticLocking() && (this.descriptor.getTables().firstElement().equals(table))) {
    return this.descriptor.getOptimisticLockingPolicy().buildDeleteExpression(table, primaryKeyExpression, row);
  } else {
    return buildPrimaryKeyExpression(table);
  }
}