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| <h2 title="Interface SupportsNamespaces" class="title">Interface SupportsNamespaces</h2> |
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| <dl> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><a href="../../../../org/apache/iceberg/catalog/BaseSessionCatalog.AsCatalog.html" title="class in org.apache.iceberg.catalog">BaseSessionCatalog.AsCatalog</a>, <a href="../../../../org/apache/iceberg/aws/dynamodb/DynamoDbCatalog.html" title="class in org.apache.iceberg.aws.dynamodb">DynamoDbCatalog</a>, <a href="../../../../org/apache/iceberg/dell/ecs/EcsCatalog.html" title="class in org.apache.iceberg.dell.ecs">EcsCatalog</a>, <a href="../../../../org/apache/iceberg/aws/glue/GlueCatalog.html" title="class in org.apache.iceberg.aws.glue">GlueCatalog</a>, <a href="../../../../org/apache/iceberg/hadoop/HadoopCatalog.html" title="class in org.apache.iceberg.hadoop">HadoopCatalog</a>, <a href="../../../../org/apache/iceberg/hive/HiveCatalog.html" title="class in org.apache.iceberg.hive">HiveCatalog</a>, <a href="../../../../org/apache/iceberg/inmemory/InMemoryCatalog.html" title="class in org.apache.iceberg.inmemory">InMemoryCatalog</a>, <a href="../../../../org/apache/iceberg/jdbc/JdbcCatalog.html" title="class in org.apache.iceberg.jdbc">JdbcCatalog</a>, <a href="../../../../org/apache/iceberg/nessie/NessieCatalog.html" title="class in org.apache.iceberg.nessie">NessieCatalog</a>, <a href="../../../../org/apache/iceberg/rest/RESTCatalog.html" title="class in org.apache.iceberg.rest">RESTCatalog</a>, <a href="../../../../org/apache/iceberg/snowflake/SnowflakeCatalog.html" title="class in org.apache.iceberg.snowflake">SnowflakeCatalog</a></dd> |
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| <hr> |
| <br> |
| <pre>public interface <span class="typeNameLabel">SupportsNamespaces</span></pre> |
| <div class="block">Catalog methods for working with namespaces. |
| |
| <p>If an object such as a table, view, or function exists, its parent namespaces must also exist |
| and must be returned by the discovery methods <a href="../../../../org/apache/iceberg/catalog/SupportsNamespaces.html#listNamespaces--"><code>listNamespaces()</code></a> and <a href="../../../../org/apache/iceberg/catalog/SupportsNamespaces.html#listNamespaces-org.apache.iceberg.catalog.Namespace-"><code>listNamespaces(Namespace namespace)</code></a>. |
| |
| <p>Catalog implementations are not required to maintain the existence of namespaces independent |
| of objects in a namespace. For example, a function catalog that loads functions using reflection |
| and uses Java packages as namespaces is not required to support the methods to create, alter, or |
| drop a namespace. Implementations are allowed to discover the existence of objects or namespaces |
| without throwing <a href="../../../../org/apache/iceberg/exceptions/NoSuchNamespaceException.html" title="class in org.apache.iceberg.exceptions"><code>NoSuchNamespaceException</code></a> when no namespace is found.</div> |
| </li> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span><span id="t5" class="tableTab"><span><a href="javascript:show(16);">Default Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <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>default void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/catalog/SupportsNamespaces.html#createNamespace-org.apache.iceberg.catalog.Namespace-">createNamespace</a></span>(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace)</code> |
| <div class="block">Create a namespace in the catalog.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/catalog/SupportsNamespaces.html#createNamespace-org.apache.iceberg.catalog.Namespace-java.util.Map-">createNamespace</a></span>(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace, |
| java.util.Map<java.lang.String,java.lang.String> metadata)</code> |
| <div class="block">Create a namespace in the catalog.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/catalog/SupportsNamespaces.html#dropNamespace-org.apache.iceberg.catalog.Namespace-">dropNamespace</a></span>(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace)</code> |
| <div class="block">Drop a namespace.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>default java.util.List<<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/catalog/SupportsNamespaces.html#listNamespaces--">listNamespaces</a></span>()</code> |
| <div class="block">List top-level namespaces from the catalog.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>java.util.List<<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/catalog/SupportsNamespaces.html#listNamespaces-org.apache.iceberg.catalog.Namespace-">listNamespaces</a></span>(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace)</code> |
| <div class="block">List namespaces from the namespace.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>java.util.Map<java.lang.String,java.lang.String></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/catalog/SupportsNamespaces.html#loadNamespaceMetadata-org.apache.iceberg.catalog.Namespace-">loadNamespaceMetadata</a></span>(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace)</code> |
| <div class="block">Load metadata properties for a namespace.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>default boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/catalog/SupportsNamespaces.html#namespaceExists-org.apache.iceberg.catalog.Namespace-">namespaceExists</a></span>(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace)</code> |
| <div class="block">Checks whether the Namespace exists.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/catalog/SupportsNamespaces.html#removeProperties-org.apache.iceberg.catalog.Namespace-java.util.Set-">removeProperties</a></span>(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace, |
| java.util.Set<java.lang.String> properties)</code> |
| <div class="block">Remove a set of property keys from a namespace in the catalog.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/catalog/SupportsNamespaces.html#setProperties-org.apache.iceberg.catalog.Namespace-java.util.Map-">setProperties</a></span>(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace, |
| java.util.Map<java.lang.String,java.lang.String> properties)</code> |
| <div class="block">Set a collection of properties on a namespace in the catalog.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <li class="blockList"> |
| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.detail"> |
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| </a> |
| <h3>Method Detail</h3> |
| <a name="createNamespace-org.apache.iceberg.catalog.Namespace-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createNamespace</h4> |
| <pre>default void createNamespace(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace)</pre> |
| <div class="block">Create a namespace in the catalog.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>namespace</code> - a namespace. <a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog"><code>Namespace</code></a>.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/exceptions/AlreadyExistsException.html" title="class in org.apache.iceberg.exceptions">AlreadyExistsException</a></code> - If the namespace already exists</dd> |
| <dd><code>java.lang.UnsupportedOperationException</code> - If create is not a supported operation</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="createNamespace-org.apache.iceberg.catalog.Namespace-java.util.Map-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createNamespace</h4> |
| <pre>void createNamespace(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace, |
| java.util.Map<java.lang.String,java.lang.String> metadata)</pre> |
| <div class="block">Create a namespace in the catalog.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>namespace</code> - a multi-part namespace</dd> |
| <dd><code>metadata</code> - a string Map of properties for the given namespace</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/exceptions/AlreadyExistsException.html" title="class in org.apache.iceberg.exceptions">AlreadyExistsException</a></code> - If the namespace already exists</dd> |
| <dd><code>java.lang.UnsupportedOperationException</code> - If create is not a supported operation</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="listNamespaces--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>listNamespaces</h4> |
| <pre>default java.util.List<<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a>> listNamespaces()</pre> |
| <div class="block">List top-level namespaces from the catalog. |
| |
| <p>If an object such as a table, view, or function exists, its parent namespaces must also |
| exist and must be returned by this discovery method. For example, if table a.b.t exists, this |
| method must return ["a"] in the result array.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an List of namespace <a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog"><code>Namespace</code></a> names</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="listNamespaces-org.apache.iceberg.catalog.Namespace-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>listNamespaces</h4> |
| <pre>java.util.List<<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a>> listNamespaces(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace) |
| throws <a href="../../../../org/apache/iceberg/exceptions/NoSuchNamespaceException.html" title="class in org.apache.iceberg.exceptions">NoSuchNamespaceException</a></pre> |
| <div class="block">List namespaces from the namespace. |
| |
| <p>For example, if table a.b.t exists, use 'SELECT NAMESPACE IN a' this method must return |
| Namepace.of("a","b") <a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog"><code>Namespace</code></a>.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a List of namespace <a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog"><code>Namespace</code></a> names</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/exceptions/NoSuchNamespaceException.html" title="class in org.apache.iceberg.exceptions">NoSuchNamespaceException</a></code> - If the namespace does not exist (optional)</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="loadNamespaceMetadata-org.apache.iceberg.catalog.Namespace-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>loadNamespaceMetadata</h4> |
| <pre>java.util.Map<java.lang.String,java.lang.String> loadNamespaceMetadata(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace) |
| throws <a href="../../../../org/apache/iceberg/exceptions/NoSuchNamespaceException.html" title="class in org.apache.iceberg.exceptions">NoSuchNamespaceException</a></pre> |
| <div class="block">Load metadata properties for a namespace.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>namespace</code> - a namespace. <a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog"><code>Namespace</code></a></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a string map of properties for the given namespace</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/exceptions/NoSuchNamespaceException.html" title="class in org.apache.iceberg.exceptions">NoSuchNamespaceException</a></code> - If the namespace does not exist (optional)</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="dropNamespace-org.apache.iceberg.catalog.Namespace-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>dropNamespace</h4> |
| <pre>boolean dropNamespace(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace) |
| throws <a href="../../../../org/apache/iceberg/exceptions/NamespaceNotEmptyException.html" title="class in org.apache.iceberg.exceptions">NamespaceNotEmptyException</a></pre> |
| <div class="block">Drop a namespace. If the namespace exists and was dropped, this will return true.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>namespace</code> - a namespace. <a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog"><code>Namespace</code></a></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if the namespace was dropped, false otherwise.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/exceptions/NamespaceNotEmptyException.html" title="class in org.apache.iceberg.exceptions">NamespaceNotEmptyException</a></code> - If the namespace is not empty</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="setProperties-org.apache.iceberg.catalog.Namespace-java.util.Map-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setProperties</h4> |
| <pre>boolean setProperties(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace, |
| java.util.Map<java.lang.String,java.lang.String> properties) |
| throws <a href="../../../../org/apache/iceberg/exceptions/NoSuchNamespaceException.html" title="class in org.apache.iceberg.exceptions">NoSuchNamespaceException</a></pre> |
| <div class="block">Set a collection of properties on a namespace in the catalog. |
| |
| <p>Properties that are not in the given map are not modified or removed by this method.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>namespace</code> - a namespace. <a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog"><code>Namespace</code></a></dd> |
| <dd><code>properties</code> - a collection of metadata to apply to the namespace</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/exceptions/NoSuchNamespaceException.html" title="class in org.apache.iceberg.exceptions">NoSuchNamespaceException</a></code> - If the namespace does not exist (optional)</dd> |
| <dd><code>java.lang.UnsupportedOperationException</code> - If namespace properties are not supported</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="removeProperties-org.apache.iceberg.catalog.Namespace-java.util.Set-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>removeProperties</h4> |
| <pre>boolean removeProperties(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace, |
| java.util.Set<java.lang.String> properties) |
| throws <a href="../../../../org/apache/iceberg/exceptions/NoSuchNamespaceException.html" title="class in org.apache.iceberg.exceptions">NoSuchNamespaceException</a></pre> |
| <div class="block">Remove a set of property keys from a namespace in the catalog. |
| |
| <p>Properties that are not in the given set are not modified or removed by this method.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>namespace</code> - a namespace. <a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog"><code>Namespace</code></a></dd> |
| <dd><code>properties</code> - a collection of metadata to apply to the namespace</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/exceptions/NoSuchNamespaceException.html" title="class in org.apache.iceberg.exceptions">NoSuchNamespaceException</a></code> - If the namespace does not exist (optional)</dd> |
| <dd><code>java.lang.UnsupportedOperationException</code> - If namespace properties are not supported</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="namespaceExists-org.apache.iceberg.catalog.Namespace-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>namespaceExists</h4> |
| <pre>default boolean namespaceExists(<a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog">Namespace</a> namespace)</pre> |
| <div class="block">Checks whether the Namespace exists.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>namespace</code> - a namespace. <a href="../../../../org/apache/iceberg/catalog/Namespace.html" title="class in org.apache.iceberg.catalog"><code>Namespace</code></a></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if the Namespace exists, false otherwise</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
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