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<div class="subTitle">org.apache.sysds.runtime.transform.meta</div>
<h2 title="Class TfMetaUtils" class="title">Class TfMetaUtils</h2>
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<pre>public class <span class="typeNameLabel">TfMetaUtils</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/transform/meta/TfMetaUtils.html#TfMetaUtils--">TfMetaUtils</a></span>()</code>&nbsp;</td>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<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>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/transform/meta/TfMetaUtils.html#containsOmitSpec-java.lang.String-java.lang.String:A-">containsOmitSpec</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames)</code>&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/transform/meta/TfMetaUtils.html#getK-org.apache.wink.json4j.JSONObject-">getK</a></span>(org.apache.wink.json4j.JSONObject&nbsp;parsedSpec)</code>
<div class="block">Get K value used for calculation during feature hashing from parsed specifications.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/transform/meta/TfMetaUtils.html#isIDSpec-org.apache.wink.json4j.JSONObject-">isIDSpec</a></span>(org.apache.wink.json4j.JSONObject&nbsp;spec)</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/transform/meta/TfMetaUtils.html#isIDSpec-java.lang.String-">isIDSpec</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;spec)</code>&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/transform/meta/TfMetaUtils.html#parseBinningColIDs-org.apache.wink.json4j.JSONObject-java.lang.String:A-int-int-">parseBinningColIDs</a></span>(org.apache.wink.json4j.JSONObject&nbsp;jSpec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames,
int&nbsp;minCol,
int&nbsp;maxCol)</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/transform/meta/TfMetaUtils.html#parseBinningColIDs-java.lang.String-java.lang.String:A-int-int-">parseBinningColIDs</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames,
int&nbsp;minCol,
int&nbsp;maxCol)</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>static int[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/transform/meta/TfMetaUtils.html#parseJsonIDList-org.apache.wink.json4j.JSONObject-java.lang.String:A-java.lang.String-">parseJsonIDList</a></span>(org.apache.wink.json4j.JSONObject&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;group)</code>
<div class="block">TODO consolidate external and internal json spec definitions</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>static int[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/transform/meta/TfMetaUtils.html#parseJsonIDList-org.apache.wink.json4j.JSONObject-java.lang.String:A-java.lang.String-int-int-">parseJsonIDList</a></span>(org.apache.wink.json4j.JSONObject&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;group,
int&nbsp;minCol,
int&nbsp;maxCol)</code>&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>static int[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/transform/meta/TfMetaUtils.html#parseJsonIDList-java.lang.String-java.lang.String:A-java.lang.String-">parseJsonIDList</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;group)</code>&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/transform/meta/TfMetaUtils.html#parseJsonObjectID-org.apache.wink.json4j.JSONObject-java.lang.String:A-int-int-boolean-">parseJsonObjectID</a></span>(org.apache.wink.json4j.JSONObject&nbsp;colspec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames,
int&nbsp;minCol,
int&nbsp;maxCol,
boolean&nbsp;ids)</code>&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>static int[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/transform/meta/TfMetaUtils.html#parseJsonObjectIDList-org.apache.wink.json4j.JSONObject-java.lang.String:A-java.lang.String-int-int-">parseJsonObjectIDList</a></span>(org.apache.wink.json4j.JSONObject&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;group,
int&nbsp;minCol,
int&nbsp;maxCol)</code>&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../org/apache/sysds/runtime/matrix/data/FrameBlock.html" title="class in org.apache.sysds.runtime.matrix.data">FrameBlock</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/transform/meta/TfMetaUtils.html#readTransformMetaDataFromFile-java.lang.String-java.lang.String-java.lang.String-">readTransformMetaDataFromFile</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;metapath,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;colDelim)</code>
<div class="block">Reads transform meta data from an HDFS file path and converts it into an in-memory
FrameBlock object.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../org/apache/sysds/runtime/matrix/data/FrameBlock.html" title="class in org.apache.sysds.runtime.matrix.data">FrameBlock</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/transform/meta/TfMetaUtils.html#readTransformMetaDataFromPath-java.lang.String-java.lang.String-java.lang.String-">readTransformMetaDataFromPath</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;metapath,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;colDelim)</code>
<div class="block">Reads transform meta data from the class path and converts it into an in-memory
FrameBlock object.</div>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h4>TfMetaUtils</h4>
<pre>public&nbsp;TfMetaUtils()</pre>
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<h4>isIDSpec</h4>
<pre>public static&nbsp;boolean&nbsp;isIDSpec(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;spec)</pre>
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<pre>public static&nbsp;boolean&nbsp;isIDSpec(org.apache.wink.json4j.JSONObject&nbsp;spec)
throws org.apache.wink.json4j.JSONException</pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.wink.json4j.JSONException</code></dd>
</dl>
</li>
</ul>
<a name="containsOmitSpec-java.lang.String-java.lang.String:A-">
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<h4>containsOmitSpec</h4>
<pre>public static&nbsp;boolean&nbsp;containsOmitSpec(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames)</pre>
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<h4>parseJsonIDList</h4>
<pre>public static&nbsp;int[]&nbsp;parseJsonIDList(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;group)</pre>
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<pre>public static&nbsp;int[]&nbsp;parseJsonIDList(org.apache.wink.json4j.JSONObject&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;group)
throws org.apache.wink.json4j.JSONException</pre>
<div class="block">TODO consolidate external and internal json spec definitions</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>spec</code> - transform specification as json string</dd>
<dd><code>colnames</code> - column names</dd>
<dd><code>group</code> - attribute name in json class</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>list of column ids</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.wink.json4j.JSONException</code> - if JSONException occurs</dd>
</dl>
</li>
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<h4>parseJsonIDList</h4>
<pre>public static&nbsp;int[]&nbsp;parseJsonIDList(org.apache.wink.json4j.JSONObject&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;group,
int&nbsp;minCol,
int&nbsp;maxCol)
throws org.apache.wink.json4j.JSONException</pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>spec</code> - transform specification as json string</dd>
<dd><code>colnames</code> - column names</dd>
<dd><code>group</code> - attribute name in json class</dd>
<dd><code>minCol</code> - start of columns to ignore (1-based, inclusive, if -1 not used)</dd>
<dd><code>maxCol</code> - end of columns to ignore (1-based, exclusive, if -1 not used)</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>list of column ids</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.wink.json4j.JSONException</code> - if JSONException occurs</dd>
</dl>
</li>
</ul>
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<pre>public static&nbsp;int&nbsp;parseJsonObjectID(org.apache.wink.json4j.JSONObject&nbsp;colspec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames,
int&nbsp;minCol,
int&nbsp;maxCol,
boolean&nbsp;ids)
throws org.apache.wink.json4j.JSONException</pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.wink.json4j.JSONException</code></dd>
</dl>
</li>
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<pre>public static&nbsp;int[]&nbsp;parseJsonObjectIDList(org.apache.wink.json4j.JSONObject&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;group,
int&nbsp;minCol,
int&nbsp;maxCol)
throws org.apache.wink.json4j.JSONException</pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.wink.json4j.JSONException</code></dd>
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<h4>getK</h4>
<pre>public static&nbsp;long&nbsp;getK(org.apache.wink.json4j.JSONObject&nbsp;parsedSpec)
throws org.apache.wink.json4j.JSONException</pre>
<div class="block">Get K value used for calculation during feature hashing from parsed specifications.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parsedSpec</code> - parsed specifications</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>K value</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.wink.json4j.JSONException</code> - if JSONException occurs</dd>
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<pre>public static&nbsp;<a href="../../../../../../org/apache/sysds/runtime/matrix/data/FrameBlock.html" title="class in org.apache.sysds.runtime.matrix.data">FrameBlock</a>&nbsp;readTransformMetaDataFromFile(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;metapath,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;colDelim)
throws <a href="https://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">Reads transform meta data from an HDFS file path and converts it into an in-memory
FrameBlock object.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>spec</code> - transform specification as json string</dd>
<dd><code>metapath</code> - hdfs file path to meta data directory</dd>
<dd><code>colDelim</code> - separator for processing column names in the meta data file 'column.names'</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>frame block</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if IOException occurs</dd>
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<pre>public static&nbsp;<a href="../../../../../../org/apache/sysds/runtime/matrix/data/FrameBlock.html" title="class in org.apache.sysds.runtime.matrix.data">FrameBlock</a>&nbsp;readTransformMetaDataFromPath(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;metapath,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;colDelim)
throws <a href="https://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">Reads transform meta data from the class path and converts it into an in-memory
FrameBlock object.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>spec</code> - transform specification as json string</dd>
<dd><code>metapath</code> - resource path to meta data directory</dd>
<dd><code>colDelim</code> - separator for processing column names in the meta data file 'column.names'</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>frame block</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if IOException occurs</dd>
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<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;parseBinningColIDs(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;spec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames,
int&nbsp;minCol,
int&nbsp;maxCol)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://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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<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;parseBinningColIDs(org.apache.wink.json4j.JSONObject&nbsp;jSpec,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;colnames,
int&nbsp;minCol,
int&nbsp;maxCol)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://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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