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## org.bouncycastle.asn1.cms
Class CompressedData

    java.lang.Object
      org.bouncycastle.asn1.ASN1Object
          org.bouncycastle.asn1.cms.CompressedData

All Implemented Interfaces:
  ASN1Encodable, Encodable

public class CompressedData
extends ASN1Object

RFC 3274: CMS Compressed Data. CompressedData ::= SEQUENCE { version CMSVersion, compressionAlgorithm CompressionAlgorithmIdentifier, encapContentInfo EncapsulatedContentInfo }

Constructor Summary
`CompressedData(AlgorithmIdentifier compressionAlgorithm, ContentInfo encapContentInfo)`

Method Summary
`AlgorithmIdentifier` | `getCompressionAlgorithmIdentifier()`
`ContentInfo` | `getEncapContentInfo()`
`static CompressedData` | `getInstance(ASN1TaggedObject ato, boolean isExplicit)` Return a CompressedData object from a tagged object.
`static CompressedData` | `getInstance(java.lang.Object obj)` Return a CompressedData object from the given object.
`ASN1Integer` | `getVersion()`
`ASN1Primitive` | `toASN1Primitive()` Method providing a primitive representation of this object suitable for encoding.

Methods inherited from class org.bouncycastle.asn1.ASN1Object
`encodeTo, encodeTo, equals, getEncoded, getEncoded, hasEncodedTagValue, hashCode`

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

Constructor Detail

### CompressedData

    public CompressedData(AlgorithmIdentifier compressionAlgorithm,
                          ContentInfo encapContentInfo)

Method Detail

### getInstance

    public static CompressedData getInstance(ASN1TaggedObject ato,
                                             boolean isExplicit)

  Return a CompressedData object from a tagged object.

  Parameters:
    `ato` - the tagged object holding the object we want.
    `isExplicit` - true if the object is meant to be explicitly tagged false otherwise.
  Throws:
    `java.lang.IllegalArgumentException` - if the object held by the tagged object cannot be converted.

### getInstance

    public static CompressedData getInstance(java.lang.Object obj)

  Return a CompressedData object from the given object.

  Accepted inputs: null → null `CompressedData` object `ASN1Sequence` input formats with CompressedData structure inside

  Parameters:
    `obj` - the object we want converted.
  Throws:
    `java.lang.IllegalArgumentException` - if the object cannot be converted.

### getVersion

    public ASN1Integer getVersion()

### getCompressionAlgorithmIdentifier

    public AlgorithmIdentifier getCompressionAlgorithmIdentifier()

### getEncapContentInfo

    public ContentInfo getEncapContentInfo()

### toASN1Primitive

    public ASN1Primitive toASN1Primitive()

  Description copied from class: `ASN1Object`
  Method providing a primitive representation of this object suitable for encoding.

  Specified by:
    `toASN1Primitive` in interface `ASN1Encodable`
  Specified by:
    `toASN1Primitive` in class `ASN1Object`
  Returns:
    a primitive representation of this object.

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