| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <!-- NewPage --> |
| <html lang="en"> |
| <head> |
| <!-- Generated by javadoc (1.8.0_151-google-v7) on Tue Oct 02 14:37:29 PDT 2018 --> |
| <title>ResourceId (Apache Beam 2.7.0-SNAPSHOT)</title> |
| <meta name="date" content="2018-10-02"> |
| <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> |
| <script type="text/javascript" src="../../../../../../script.js"></script> |
| </head> |
| <body> |
| <script type="text/javascript"><!-- |
| try { |
| if (location.href.indexOf('is-external=true') == -1) { |
| parent.document.title="ResourceId (Apache Beam 2.7.0-SNAPSHOT)"; |
| } |
| } |
| catch(err) { |
| } |
| //--> |
| var methods = {"i0":6,"i1":6,"i2":6,"i3":6,"i4":6,"i5":6}; |
| var tabs = {65535:["t0","All Methods"],2:["t2","Instance Methods"],4:["t3","Abstract Methods"]}; |
| var altColor = "altColor"; |
| var rowColor = "rowColor"; |
| var tableTab = "tableTab"; |
| var activeTableTab = "activeTableTab"; |
| </script> |
| <noscript> |
| <div>JavaScript is disabled on your browser.</div> |
| </noscript> |
| <!-- ========= START OF TOP NAVBAR ======= --> |
| <div class="topNav"><a name="navbar.top"> |
| <!-- --> |
| </a> |
| <div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation links">Skip navigation links</a></div> |
| <a name="navbar.top.firstrow"> |
| <!-- --> |
| </a> |
| <ul class="navList" title="Navigation"> |
| <li><a href="../../../../../../overview-summary.html">Overview</a></li> |
| <li><a href="package-summary.html">Package</a></li> |
| <li class="navBarCell1Rev">Class</li> |
| <li><a href="package-tree.html">Tree</a></li> |
| <li><a href="../../../../../../deprecated-list.html">Deprecated</a></li> |
| <li><a href="../../../../../../index-all.html">Index</a></li> |
| <li><a href="../../../../../../help-doc.html">Help</a></li> |
| </ul> |
| </div> |
| <div class="subNav"> |
| <ul class="navList"> |
| <li><a href="../../../../../../org/apache/beam/sdk/io/fs/ResolveOptions.StandardResolveOptions.html" title="enum in org.apache.beam.sdk.io.fs"><span class="typeNameLink">Prev Class</span></a></li> |
| <li><a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceIdCoder.html" title="class in org.apache.beam.sdk.io.fs"><span class="typeNameLink">Next Class</span></a></li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../../../index.html?org/apache/beam/sdk/io/fs/ResourceId.html" target="_top">Frames</a></li> |
| <li><a href="ResourceId.html" target="_top">No Frames</a></li> |
| </ul> |
| <ul class="navList" id="allclasses_navbar_top"> |
| <li><a href="../../../../../../allclasses-noframe.html">All Classes</a></li> |
| </ul> |
| <div> |
| <script type="text/javascript"><!-- |
| allClassesLink = document.getElementById("allclasses_navbar_top"); |
| if(window==top) { |
| allClassesLink.style.display = "block"; |
| } |
| else { |
| allClassesLink.style.display = "none"; |
| } |
| //--> |
| </script> |
| </div> |
| <div> |
| <ul class="subNavList"> |
| <li>Summary: </li> |
| <li>Nested | </li> |
| <li>Field | </li> |
| <li>Constr | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li>Field | </li> |
| <li>Constr | </li> |
| <li><a href="#method.detail">Method</a></li> |
| </ul> |
| </div> |
| <a name="skip.navbar.top"> |
| <!-- --> |
| </a></div> |
| <!-- ========= END OF TOP NAVBAR ========= --> |
| <!-- ======== START OF CLASS DATA ======== --> |
| <div class="header"> |
| <div class="subTitle">org.apache.beam.sdk.io.fs</div> |
| <h2 title="Interface ResourceId" class="title">Interface ResourceId</h2> |
| </div> |
| <div class="contentContainer"> |
| <div class="description"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <dl> |
| <dt>All Superinterfaces:</dt> |
| <dd>java.io.Serializable</dd> |
| </dl> |
| <dl> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><a href="../../../../../../org/apache/beam/sdk/extensions/gcp/storage/GcsResourceId.html" title="class in org.apache.beam.sdk.extensions.gcp.storage">GcsResourceId</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre><a href="../../../../../../org/apache/beam/sdk/annotations/Experimental.html" title="annotation in org.apache.beam.sdk.annotations">@Experimental</a>(<a href="../../../../../../org/apache/beam/sdk/annotations/Experimental.html#value--">value</a>=<a href="../../../../../../org/apache/beam/sdk/annotations/Experimental.Kind.html#FILESYSTEM">FILESYSTEM</a>) |
| public interface <span class="typeNameLabel">ResourceId</span> |
| extends java.io.Serializable</pre> |
| <div class="block">An identifier which represents a file-like resource. |
| |
| <p><a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs"><code>ResourceId</code></a> is hierarchical and composed of a sequence of directory and file name |
| elements separated by a special separator or delimiter. |
| |
| <p><a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs"><code>ResourceIds</code></a> are created using <a href="../../../../../../org/apache/beam/sdk/io/FileSystems.html" title="class in org.apache.beam.sdk.io"><code>FileSystems</code></a>. The two primary |
| mechanisms are: |
| |
| <ul> |
| <li><a href="../../../../../../org/apache/beam/sdk/io/FileSystems.html#match-java.util.List-"><code>FileSystems.match(java.util.List)</code></a>, which takes a list of <code>String</code> resource |
| names or globs, queries the <a href="../../../../../../org/apache/beam/sdk/io/FileSystem.html" title="class in org.apache.beam.sdk.io"><code>FileSystem</code></a> for resources matching these specifications, |
| and returns a <a href="../../../../../../org/apache/beam/sdk/io/fs/MatchResult.html" title="class in org.apache.beam.sdk.io.fs"><code>MatchResult</code></a> for each glob. This is typically used when reading from |
| files. |
| <li><a href="../../../../../../org/apache/beam/sdk/io/FileSystems.html#matchNewResource-java.lang.String-boolean-"><code>FileSystems.matchNewResource(String, boolean)</code></a>, which takes a <code>String</code> full |
| resource name and type (file or directory) and generates a <a href="../../../../../../org/apache/beam/sdk/io/FileSystem.html" title="class in org.apache.beam.sdk.io"><code>FileSystem</code></a>-specific |
| <code>ResourceId</code> for that resource. This call does not verify the presence or absence of |
| that resource in the file system. This call is typically used when creating new directories |
| or files to generate <a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs"><code>ResourceIds</code></a> for resources that may not yet exist. |
| </ul></div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.summary"> |
| <!-- --> |
| </a> |
| <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></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><a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs">ResourceId</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html#getCurrentDirectory--">getCurrentDirectory</a></span>()</code> |
| <div class="block">Returns the <code>ResourceId</code> that represents the current directory of this <code>ResourceId</code>.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html#getFilename--">getFilename</a></span>()</code> |
| <div class="block">Returns the name of the file or directory denoted by this <code>ResourceId</code>.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html#getScheme--">getScheme</a></span>()</code> |
| <div class="block">Get the scheme which defines the namespace of the <a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs"><code>ResourceId</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html#isDirectory--">isDirectory</a></span>()</code> |
| <div class="block">Returns <code>true</code> if this <a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs"><code>ResourceId</code></a> represents a directory, false otherwise.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs">ResourceId</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html#resolve-java.lang.String-org.apache.beam.sdk.io.fs.ResolveOptions-">resolve</a></span>(java.lang.String other, |
| <a href="../../../../../../org/apache/beam/sdk/io/fs/ResolveOptions.html" title="interface in org.apache.beam.sdk.io.fs">ResolveOptions</a> resolveOptions)</code> |
| <div class="block">Returns a child <code>ResourceId</code> under <code>this</code>.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html#toString--">toString</a></span>()</code> |
| <div class="block">Returns the string representation of this <a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs"><code>ResourceId</code></a>.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.detail"> |
| <!-- --> |
| </a> |
| <h3>Method Detail</h3> |
| <a name="resolve-java.lang.String-org.apache.beam.sdk.io.fs.ResolveOptions-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>resolve</h4> |
| <pre><a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs">ResourceId</a> resolve(java.lang.String other, |
| <a href="../../../../../../org/apache/beam/sdk/io/fs/ResolveOptions.html" title="interface in org.apache.beam.sdk.io.fs">ResolveOptions</a> resolveOptions)</pre> |
| <div class="block">Returns a child <code>ResourceId</code> under <code>this</code>. |
| |
| <p>In order to write file system agnostic code, callers should not include delimiters in <code>other</code>, and should use <a href="../../../../../../org/apache/beam/sdk/io/fs/ResolveOptions.StandardResolveOptions.html" title="enum in org.apache.beam.sdk.io.fs"><code>ResolveOptions.StandardResolveOptions</code></a> to specify whether to resolve a file or a |
| directory. |
| |
| <p>For example: |
| |
| <pre><code> |
| ResourceId homeDir = ...; |
| ResourceId tempOutput = homeDir |
| .resolve("tempDir", StandardResolveOptions.RESOLVE_DIRECTORY) |
| .resolve("output", StandardResolveOptions.RESOLVE_FILE); |
| </code></pre> |
| |
| <p>This <a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs"><code>ResourceId</code></a> should represents a directory. |
| |
| <p>It is up to each file system to resolve in their own way. |
| |
| <p>Resolving special characters: |
| |
| <ul> |
| <li><code>resourceId.resolve("..", StandardResolveOptions.RESOLVE_DIRECTORY)</code> returns the |
| parent directory of this <code>ResourceId</code>. |
| <li><code>resourceId.resolve("{@literal *}", StandardResolveOptions.RESOLVE_FILE)</code> returns a |
| <code>ResourceId</code> which matches all files in this <code>ResourceId</code>. |
| <li><code>resourceId.resolve("{@literal *}", StandardResolveOptions.RESOLVE_DIRECTORY)</code> |
| returns a <code>ResourceId</code> which matches all directories in this <code>ResourceId</code>. |
| </ul></div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.IllegalStateException</code> - if this <a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs"><code>ResourceId</code></a> is not a directory.</dd> |
| <dd><code>java.lang.IllegalArgumentException</code> - if <code>other</code> contains illegal characters or is an illegal |
| name. It is recommended that callers use common characters, such as <code>[_a-zA-Z0-9.-]</code>, |
| in <code>other</code>.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getCurrentDirectory--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getCurrentDirectory</h4> |
| <pre><a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs">ResourceId</a> getCurrentDirectory()</pre> |
| <div class="block">Returns the <code>ResourceId</code> that represents the current directory of this <code>ResourceId</code>. |
| |
| <p>If it is already a directory, trivially returns this.</div> |
| </li> |
| </ul> |
| <a name="getScheme--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getScheme</h4> |
| <pre>java.lang.String getScheme()</pre> |
| <div class="block">Get the scheme which defines the namespace of the <a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs"><code>ResourceId</code></a>. |
| |
| <p>The scheme is required to follow URI scheme syntax. See <a |
| href="https://www.ietf.org/rfc/rfc2396.txt">RFC 2396</a></div> |
| </li> |
| </ul> |
| <a name="getFilename--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getFilename</h4> |
| <pre>@Nullable |
| java.lang.String getFilename()</pre> |
| <div class="block">Returns the name of the file or directory denoted by this <code>ResourceId</code>. The file name is |
| the farthest element from the root in the directory hierarchy.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a string representing the name of file or directory, or null if there are zero |
| components.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isDirectory--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isDirectory</h4> |
| <pre>boolean isDirectory()</pre> |
| <div class="block">Returns <code>true</code> if this <a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs"><code>ResourceId</code></a> represents a directory, false otherwise.</div> |
| </li> |
| </ul> |
| <a name="toString--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>toString</h4> |
| <pre>java.lang.String toString()</pre> |
| <div class="block">Returns the string representation of this <a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs"><code>ResourceId</code></a>. |
| |
| <p>The corresponding <a href="../../../../../../org/apache/beam/sdk/io/FileSystem.html#match-java.util.List-"><code>FileSystem.match(java.util.List<java.lang.String>)</code></a> is required to accept this string representation.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code>toString</code> in class <code>java.lang.Object</code></dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| </div> |
| <!-- ========= END OF CLASS DATA ========= --> |
| <!-- ======= START OF BOTTOM NAVBAR ====== --> |
| <div class="bottomNav"><a name="navbar.bottom"> |
| <!-- --> |
| </a> |
| <div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div> |
| <a name="navbar.bottom.firstrow"> |
| <!-- --> |
| </a> |
| <ul class="navList" title="Navigation"> |
| <li><a href="../../../../../../overview-summary.html">Overview</a></li> |
| <li><a href="package-summary.html">Package</a></li> |
| <li class="navBarCell1Rev">Class</li> |
| <li><a href="package-tree.html">Tree</a></li> |
| <li><a href="../../../../../../deprecated-list.html">Deprecated</a></li> |
| <li><a href="../../../../../../index-all.html">Index</a></li> |
| <li><a href="../../../../../../help-doc.html">Help</a></li> |
| </ul> |
| </div> |
| <div class="subNav"> |
| <ul class="navList"> |
| <li><a href="../../../../../../org/apache/beam/sdk/io/fs/ResolveOptions.StandardResolveOptions.html" title="enum in org.apache.beam.sdk.io.fs"><span class="typeNameLink">Prev Class</span></a></li> |
| <li><a href="../../../../../../org/apache/beam/sdk/io/fs/ResourceIdCoder.html" title="class in org.apache.beam.sdk.io.fs"><span class="typeNameLink">Next Class</span></a></li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../../../index.html?org/apache/beam/sdk/io/fs/ResourceId.html" target="_top">Frames</a></li> |
| <li><a href="ResourceId.html" target="_top">No Frames</a></li> |
| </ul> |
| <ul class="navList" id="allclasses_navbar_bottom"> |
| <li><a href="../../../../../../allclasses-noframe.html">All Classes</a></li> |
| </ul> |
| <div> |
| <script type="text/javascript"><!-- |
| allClassesLink = document.getElementById("allclasses_navbar_bottom"); |
| if(window==top) { |
| allClassesLink.style.display = "block"; |
| } |
| else { |
| allClassesLink.style.display = "none"; |
| } |
| //--> |
| </script> |
| </div> |
| <div> |
| <ul class="subNavList"> |
| <li>Summary: </li> |
| <li>Nested | </li> |
| <li>Field | </li> |
| <li>Constr | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li>Field | </li> |
| <li>Constr | </li> |
| <li><a href="#method.detail">Method</a></li> |
| </ul> |
| </div> |
| <a name="skip.navbar.bottom"> |
| <!-- --> |
| </a></div> |
| <!-- ======== END OF BOTTOM NAVBAR ======= --> |
| </body> |
| </html> |