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## org.apache.poi.openxml4j.opc
Class ZipPackage

    java.lang.Object
      org.apache.poi.openxml4j.opc.OPCPackage
          org.apache.poi.openxml4j.opc.ZipPackage

All Implemented Interfaces:
  java.io.Closeable, RelationshipSource

    public final class ZipPackage

extends OPCPackage

Physical zip package.

Field Summary

Fields inherited from class org.apache.poi.openxml4j.opc.OPCPackage
`contentTypeManager, defaultPackageAccess, defaultPartMarshaller, isDirty, originalPackagePath, output, packageProperties, partList, partMarshallers, partUnmarshallers, relationships`

Constructor Summary
`ZipPackage()` Constructor.

Method Summary
`protected void` | `closeImpl()` Close and save the package.
`protected PackagePart` | `createPartImpl(PackagePartName partName, java.lang.String contentType, boolean loadRelationships)` Create a new MemoryPackagePart from the specified URI and content type aram partName The part URI.
`protected void` | `flushImpl()` Flush the package.
`protected PackagePart` | `getPartImpl(PackagePartName partName)` Implement the getPart() method to retrieve a part from its URI in the current package
`protected PackagePart[]` | `getPartsImpl()` Retrieves the parts from this package.
`ZipEntrySource` | `getZipArchive()` Get the zip archive
`protected void` | `removePartImpl(PackagePartName partName)` Delete a part from the package
`protected void` | `revertImpl()` Close the package without saving the document.
`void` | `saveImpl(java.io.OutputStream outputStream)` Save this package into the specified stream

Methods inherited from class org.apache.poi.openxml4j.opc.OPCPackage
`addExternalRelationship, addExternalRelationship, addMarshaller, addPackagePart, addRelationship, addRelationship, addThumbnail, addThumbnail, addUnmarshaller, clearRelationships, close, containPart, create, create, create, createPart, createPart, deletePart, deletePartRecursive, ensureRelationships, flush, getPackageAccess, getPackageProperties, getPart, getPart, getParts, getPartsByContentType, getPartsByName, getPartsByRelationshipType, getRelationship, getRelationships, getRelationshipsByType, hasRelationships, isRelationshipExists, open, open, open, open, open, open, openOrCreate, registerPartAndContentType, removeMarshaller, removePart, removePart, removePartRecursive, removeRelationship, removeUnmarshaller, replaceContentType, revert, save, save, unregisterPartAndContentType, validatePackage`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### ZipPackage

    public ZipPackage()

  Constructor. Creates a new, empty ZipPackage.

Method Detail

### getPartsImpl

    protected PackagePart[] getPartsImpl()
                                  throws InvalidFormatException

  Retrieves the parts from this package. We assume that the package has not been yet inspect to retrieve all the parts, this method will open the archive and look for all parts contain inside it. If the package part list is not empty, it will be emptied.

  Specified by:
    `getPartsImpl` in class `OPCPackage`
  Returns:
    All parts contain in this package.
  Throws:
    `InvalidFormatException` - if the package is not valid.

### createPartImpl

    protected PackagePart createPartImpl(PackagePartName partName,
                                         java.lang.String contentType,
                                         boolean loadRelationships)

  Create a new MemoryPackagePart from the specified URI and content type aram partName The part URI.

  Specified by:
    `createPartImpl` in class `OPCPackage`
  Parameters:
    `contentType` - The part content type.
    `partName` - URI of the part to create.
  Returns:
    The newly created zip package part, else null.

### removePartImpl

    protected void removePartImpl(PackagePartName partName)

  Delete a part from the package

  Specified by:
    `removePartImpl` in class `OPCPackage`
  Parameters:
    `partName` - The URI of the part to delete.
  Throws:
    `java.lang.IllegalArgumentException` - Throws if the part URI is nulll or invalid.

### flushImpl

    protected void flushImpl()

  Flush the package. Do nothing.

  Specified by:
    `flushImpl` in class `OPCPackage`

### closeImpl

    protected void closeImpl()
                      throws java.io.IOException

  Close and save the package.

  Specified by:
    `closeImpl` in class `OPCPackage`
  Throws:
    `java.io.IOException`
  See Also:
    `OPCPackage.close()`

### revertImpl

    protected void revertImpl()

  Close the package without saving the document. Discard all the changes made to this package.

  Specified by:
    `revertImpl` in class `OPCPackage`

### getPartImpl

    protected PackagePart getPartImpl(PackagePartName partName)

  Implement the getPart() method to retrieve a part from its URI in the current package

  Specified by:
    `getPartImpl` in class `OPCPackage`
  Parameters:
    `partName` - The URI of the part to retrieve.
  Returns:
    The package part located by the specified URI, else null.
  See Also:
    `OPCPackage.getPart(PackageRelationship)`

### saveImpl

    public void saveImpl(java.io.OutputStream outputStream)

  Save this package into the specified stream

  Specified by:
    `saveImpl` in class `OPCPackage`
  Parameters:
    `outputStream` - The stream use to save this package.
  See Also:
    `OPCPackage.save(OutputStream)`

### getZipArchive

    public ZipEntrySource getZipArchive()

  Get the zip archive

  Returns:
    The zip archive.

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Copyright 2017 The Apache Software Foundation or its licensors, as applicable.