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## org.mozilla.jss.asn1
Class CHOICE.Template

    java.lang.Object
      |
      +--org.mozilla.jss.asn1.CHOICE.Template

All Implemented Interfaces:
  ASN1Template

Enclosing class:
  CHOICE

public static class CHOICE.Template
extends java.lang.Object
implements ASN1Template

A Template for decoding ASN.1 `CHOICE`s

Nested Class Summary
`private static class` | `CHOICE.Template.Element` An element in a CHOICE template, consisting of a nested template and, optionally, an implicit tag for that template.

Field Summary
`private java.util.Vector` | `templates`

Constructor Summary
`CHOICE.Template()` Creates an empty CHOICE template

Method Summary
`void` | `addElement(ASN1Template template)` Adds a new sub-template to this CHOICE template with no implicit tag.
`void` | `addElement(Tag implicitTag, ASN1Template template)` Adds a new sub-template to this CHOICE template with an implicit tag.
`ASN1Value` | `decode(java.io.InputStream istream)` Decodes an ASN1Value from the InputStream without an implicit tag.
`ASN1Value` | `decode(Tag implicitTag, java.io.InputStream istream)` Decodes a CHOICE.
`ASN1Template` | `elementAt(int index)` Retrieves the element at the specified index.
`Tag` | `implicitTagAt(int index)` Retrieves the implicit tag of the element at the specified index.
`void` | `removeAllElements()` Empties this CHOICE template.
`void` | `removeElementAt(int index)` Removes the element at the specified index.
`int` | `size()` Returns the number of elements in this CHOICE template.
`boolean` | `tagMatch(Tag t)` Determines whether the given tag will satisfy this template.

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

Field Detail

### templates

    private java.util.Vector templates

Constructor Detail

### CHOICE.Template

    public CHOICE.Template()

  Creates an empty CHOICE template

Method Detail

### addElement

    public void addElement(ASN1Template template)

  Adds a new sub-template to this CHOICE template with no implicit tag.

### addElement

    public void addElement(Tag implicitTag,
                           ASN1Template template)

  Adds a new sub-template to this CHOICE template with an implicit tag.

### size

    public int size()

  Returns the number of elements in this CHOICE template.

### elementAt

    public ASN1Template elementAt(int index)

  Retrieves the element at the specified index.

### implicitTagAt

    public Tag implicitTagAt(int index)

  Retrieves the implicit tag of the element at the specified index. Returns null if there is no implicit tag for this element.

### removeAllElements

    public void removeAllElements()

  Empties this CHOICE template.

### removeElementAt

    public void removeElementAt(int index)

  Removes the element at the specified index.

### tagMatch

    public boolean tagMatch(Tag t)

  Determines whether the given tag will satisfy this template. For a CHOICE, this is true if the tag satisfies any sub-template.

  Specified by:
    `tagMatch` in interface `ASN1Template`

### decode

    public ASN1Value decode(java.io.InputStream istream)
                     throws java.io.IOException,
                            InvalidBERException

  Description copied from interface: `ASN1Template`
  Decodes an ASN1Value from the InputStream without an implicit tag.

  Specified by:
    `decode` in interface `ASN1Template`
  Parameters:
    `istream` - Must support marking (markSupported() == true). For example, ByteArrayInputStream and BufferedInputStream support marking, but FileInputStream does not. If your source does not support marking, you can wrap it in a BufferedInputStream.
    `java.io.IOException`
    `InvalidBERException`

### decode

    public ASN1Value decode(Tag implicitTag,
                            java.io.InputStream istream)
                     throws java.io.IOException,
                            InvalidBERException

  Decodes a CHOICE.

  Specified by:
    `decode` in interface `ASN1Template`
  Parameters:
    `implicitTag` - This parameter is ignored. A choice cannot have an implicit tag.
    `istream` - Must support marking (markSupported() == true). For example, ByteArrayInputStream and BufferedInputStream support marking, but FileInputStream does not. If your source does not support marking, you can wrap it in a BufferedInputStream.
    `java.io.IOException`
    `InvalidBERException`

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