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| <div class="subTitle">org.apache.orc</div> |
| <h2 title="Interface EncryptionVariant" class="title">Interface EncryptionVariant</h2> |
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| <dt>All Superinterfaces:</dt> |
| <dd><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a><<a href="../../../org/apache/orc/EncryptionVariant.html" title="interface in org.apache.orc">EncryptionVariant</a>></dd> |
| </dl> |
| <dl> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><a href="../../../org/apache/orc/impl/reader/ReaderEncryptionVariant.html" title="class in org.apache.orc.impl.reader">ReaderEncryptionVariant</a>, <a href="../../../org/apache/orc/impl/writer/WriterEncryptionVariant.html" title="class in org.apache.orc.impl.writer">WriterEncryptionVariant</a></dd> |
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| <pre>public interface <span class="typeNameLabel">EncryptionVariant</span> |
| extends <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a><<a href="../../../org/apache/orc/EncryptionVariant.html" title="interface in org.apache.orc">EncryptionVariant</a>></pre> |
| <div class="block">Information about a column encryption variant. |
| |
| Column encryption is done by encoding multiple variants of the same column. |
| Each encrypted column ends up in two variants: |
| <ul> |
| <li>Encrypted original</li> |
| <li>Unencrypted masked</li> |
| </ul></div> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/security/Key.html?is-external=true" title="class or interface in java.security">Key</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/EncryptionVariant.html#getFileFooterKey--">getFileFooterKey</a></span>()</code> |
| <div class="block">Get the local key for the footer.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../org/apache/orc/EncryptionKey.html" title="interface in org.apache.orc">EncryptionKey</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/EncryptionVariant.html#getKeyDescription--">getKeyDescription</a></span>()</code> |
| <div class="block">Get the key description for this column.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../org/apache/orc/TypeDescription.html" title="class in org.apache.orc">TypeDescription</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/EncryptionVariant.html#getRoot--">getRoot</a></span>()</code> |
| <div class="block">Get the root column for this variant.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/security/Key.html?is-external=true" title="class or interface in java.security">Key</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/EncryptionVariant.html#getStripeKey-long-">getStripeKey</a></span>(long stripe)</code> |
| <div class="block">Get the local key for a stripe's data or footer.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/EncryptionVariant.html#getVariantId--">getVariantId</a></span>()</code> |
| <div class="block">Get the encryption variant id within the file.</div> |
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| <code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true#compareTo-T-" title="class or interface in java.lang">compareTo</a></code></li> |
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| <h4>getKeyDescription</h4> |
| <pre><a href="../../../org/apache/orc/EncryptionKey.html" title="interface in org.apache.orc">EncryptionKey</a> getKeyDescription()</pre> |
| <div class="block">Get the key description for this column. This description is global to the |
| file and is passed to the KeyProvider along with various encrypted local |
| keys for the stripes or file footer so that it can decrypt them.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the encryption key description</dd> |
| </dl> |
| </li> |
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| <a name="getRoot--"> |
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| <h4>getRoot</h4> |
| <pre><a href="../../../org/apache/orc/TypeDescription.html" title="class in org.apache.orc">TypeDescription</a> getRoot()</pre> |
| <div class="block">Get the root column for this variant.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the root column type</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getVariantId--"> |
| <!-- --> |
| </a> |
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| <h4>getVariantId</h4> |
| <pre>int getVariantId()</pre> |
| <div class="block">Get the encryption variant id within the file.</div> |
| </li> |
| </ul> |
| <a name="getFileFooterKey--"> |
| <!-- --> |
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| <h4>getFileFooterKey</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/security/Key.html?is-external=true" title="class or interface in java.security">Key</a> getFileFooterKey() |
| throws <a href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Get the local key for the footer.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the local decrypted key or null if it isn't available</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
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| <h4>getStripeKey</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/security/Key.html?is-external=true" title="class or interface in java.security">Key</a> getStripeKey(long stripe) |
| throws <a href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Get the local key for a stripe's data or footer.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>stripe</code> - the stripe within the file (0 to N-1)</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the local decrypted key or null if it isn't available</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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