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Copyright (C) 2014-2015 Philip Helger ( philip[at]helger[dot]com Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
Base class for IBulkImport implementations.

Philip Helger
public abstract class AbstractBulkImport implements IBulkImport
  private final int m_nHeaderRowsToSkip;
  private final List <IHasDisplayTextm_aColumnNames;
  private final Set <EExchangeFileTypem_aFileTypes;
  protected AbstractBulkImport (@Nonnegative final int nHeaderRowsToSkip,
                                @Nonnull @Nonempty final List <IHasDisplayTextaColumnNames,
                                @Nonnull @Nonempty final EExchangeFileType... aFileTypes)
    ValueEnforcer.isGE0 (nHeaderRowsToSkip"HeaderRowsToSkip");
    ValueEnforcer.notEmptyNoNullValue (aColumnNames"ColumnNames");
    ValueEnforcer.notEmptyNoNullValue (aFileTypes"FileTypes");
     = nHeaderRowsToSkip;
     = aColumnNames;
     = ContainerHelper.newOrderedSet (aFileTypes);
  public final int getHeaderRowsToSkip ()
    return ;
  public final int getColumnCount ()
    return .size ();
  public final List <StringgetColumnDescriptions (@Nonnull final Locale aContentLocale)
    final List <Stringret = new ArrayList <String> (getColumnCount ());
    for (final IHasDisplayText aColumn : )
      ret.add (aColumn.getDisplayText (aContentLocale));
    return ret;
    return ContainerHelper.newList ();
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