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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.piglet</a></div>
<h2 title="Class PigConverter" class="title">Class PigConverter</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
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<li>org.apache.pig.PigServer</li>
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<li>org.apache.calcite.piglet.PigConverter</li>
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<pre>public class <span class="typeNameLabel">PigConverter</span>
extends org.apache.pig.PigServer</pre>
<div class="block">Extension from PigServer to convert Pig scripts into logical relational
algebra plans and SQL statements.</div>
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<code>org.apache.pig.PigServer.Graph</code></li>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Field</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private <a href="PigRelBuilder.html" title="class in org.apache.calcite.piglet">PigRelBuilder</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#builder">builder</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private static java.util.List&lt;<a href="../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#PIG_RULES">PIG_RULES</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private static java.util.List&lt;<a href="../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#TRANSFORM_RULES">TRANSFORM_RULES</a></span></code></th>
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<h3>Fields inherited from class&nbsp;org.apache.pig.PigServer</h3>
<code>graphs, log, pigContext, PRETTY_PRINT_SCHEMA_PROPERTY, scope</code></li>
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<td class="colFirst"><code>private </code></td>
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.calcite.tools.FrameworkConfig,org.apache.pig.ExecType)">PigConverter</a></span>&#8203;(<a href="../tools/FrameworkConfig.html" title="interface in org.apache.calcite.tools">FrameworkConfig</a>&nbsp;config,
org.apache.pig.ExecType&nbsp;execType)</code></th>
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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="t2" class="tableTab"><span><a href="javascript:show(2);">Instance 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="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
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<td class="colFirst"><code>static <a href="PigConverter.html" title="class in org.apache.calcite.piglet">PigConverter</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#create(org.apache.calcite.tools.FrameworkConfig)">create</a></span>&#8203;(<a href="../tools/FrameworkConfig.html" title="interface in org.apache.calcite.tools">FrameworkConfig</a>&nbsp;config)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="PigRelBuilder.html" title="class in org.apache.calcite.piglet">PigRelBuilder</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getBuilder()">getBuilder</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getPigScript(java.io.InputStream,java.util.Map)">getPigScript</a></span>&#8203;(java.io.InputStream&nbsp;in,
java.util.Map&lt;java.lang.String,&#8203;java.lang.String&gt;&nbsp;params)</code></th>
<td class="colLast">
<div class="block">Gets a Pig script string from a file after doing param substitution.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>private java.util.List&lt;<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#optimizePlans(java.util.List,java.util.List)">optimizePlans</a></span>&#8203;(java.util.List&lt;<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;&nbsp;originalRels,
java.util.List&lt;<a href="../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a>&gt;&nbsp;rules)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>private java.util.List&lt;<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#pigPlan2Rel(org.apache.pig.newplan.logical.relational.LogicalPlan,boolean,boolean)">pigPlan2Rel</a></span>&#8203;(org.apache.pig.newplan.logical.relational.LogicalPlan&nbsp;pigPlan,
boolean&nbsp;planRewrite,
boolean&nbsp;usePigRules)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>java.util.List&lt;<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#pigQuery2Rel(java.lang.String)">pigQuery2Rel</a></span>&#8203;(java.lang.String&nbsp;pigQuery)</code></th>
<td class="colLast">
<div class="block">Parses a Pig script and converts it into relational algebra plans,
optimizing the result.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>java.util.List&lt;<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#pigQuery2Rel(java.lang.String,boolean,boolean,boolean)">pigQuery2Rel</a></span>&#8203;(java.lang.String&nbsp;pigQuery,
boolean&nbsp;planRewrite,
boolean&nbsp;validate,
boolean&nbsp;usePigRules)</code></th>
<td class="colLast">
<div class="block">Parses a Pig script and converts it into relational algebra plans.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>java.util.List&lt;<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#pigScript2Rel(java.lang.String,java.util.Map,boolean)">pigScript2Rel</a></span>&#8203;(java.lang.String&nbsp;fileName,
java.util.Map&lt;java.lang.String,&#8203;java.lang.String&gt;&nbsp;params,
boolean&nbsp;planRewrite)</code></th>
<td class="colLast">
<div class="block">Parses a Pig script and converts it into relational algebra plans.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>java.util.List&lt;java.lang.String&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#pigToSql(java.lang.String,org.apache.calcite.sql.SqlDialect)">pigToSql</a></span>&#8203;(java.lang.String&nbsp;pigQuery,
<a href="../sql/SqlDialect.html" title="class in org.apache.calcite.sql">SqlDialect</a>&nbsp;sqlDialect)</code></th>
<td class="colLast">
<div class="block">Converts a Pig script to a list of SQL statements.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>private java.util.List&lt;java.lang.String&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#pigToSql(java.lang.String,org.apache.calcite.sql.SqlWriter)">pigToSql</a></span>&#8203;(java.lang.String&nbsp;pigQuery,
<a href="../sql/SqlWriter.html" title="interface in org.apache.calcite.sql">SqlWriter</a>&nbsp;writer)</code></th>
<td class="colLast">
<div class="block">Converts a Pig script to a list of SQL statements.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#resetPlannerRules(org.apache.calcite.plan.RelOptPlanner,java.util.List)">resetPlannerRules</a></span>&#8203;(<a href="../plan/RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a>&nbsp;planner,
java.util.List&lt;<a href="../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a>&gt;&nbsp;rulesToSet)</code></th>
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<h3>Methods inherited from class&nbsp;org.apache.pig.PigServer</h3>
<code>addPathToSkip, capacity, debugOff, debugOn, deleteFile, discardBatch, dumpSchema, dumpSchemaNested, executeBatch, executeBatch, existsFile, explain, explain, fileSize, getAliases, getAliasKeySet, getClonedGraph, getCurrentDAG, getExamples, getJobs, getLastRel, getLogicalPlanData, getPigContext, isBatchEmpty, isBatchOn, launchPlan, listPaths, mkdirs, openIterator, paramMapToList, parseAndBuild, printAliases, printHistory, registerCode, registerFunction, registerJar, registerQuery, registerQuery, registerScript, registerScript, registerScript, registerScript, registerScript, registerScript, registerScript, registerScript, registerStreamingCommand, renameFile, resetScope, setBatchOn, setDefaultParallel, setJobName, setJobPriority, setSkipParseInRegisterForBatch, setValidateEachStatement, shutdown, store, store</code></li>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h3>Field Detail</h3>
<a id="PIG_RULES">
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<h4>PIG_RULES</h4>
<pre>private static final&nbsp;java.util.List&lt;<a href="../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a>&gt; PIG_RULES</pre>
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<pre>private static final&nbsp;java.util.List&lt;<a href="../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a>&gt; TRANSFORM_RULES</pre>
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<h4>builder</h4>
<pre>private final&nbsp;<a href="PigRelBuilder.html" title="class in org.apache.calcite.piglet">PigRelBuilder</a> builder</pre>
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<h4>PigConverter</h4>
<pre>private&nbsp;PigConverter&#8203;(<a href="../tools/FrameworkConfig.html" title="interface in org.apache.calcite.tools">FrameworkConfig</a>&nbsp;config,
org.apache.pig.ExecType&nbsp;execType)
throws java.lang.Exception</pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.Exception</code></dd>
</dl>
</li>
</ul>
</li>
</ul>
</section>
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<a id="create(org.apache.calcite.tools.FrameworkConfig)">
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<h4>create</h4>
<pre class="methodSignature">public static&nbsp;<a href="PigConverter.html" title="class in org.apache.calcite.piglet">PigConverter</a>&nbsp;create&#8203;(<a href="../tools/FrameworkConfig.html" title="interface in org.apache.calcite.tools">FrameworkConfig</a>&nbsp;config)
throws java.lang.Exception</pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.Exception</code></dd>
</dl>
</li>
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<h4>getBuilder</h4>
<pre class="methodSignature">public&nbsp;<a href="PigRelBuilder.html" title="class in org.apache.calcite.piglet">PigRelBuilder</a>&nbsp;getBuilder()</pre>
</li>
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<a id="pigQuery2Rel(java.lang.String)">
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<h4>pigQuery2Rel</h4>
<pre class="methodSignature">public&nbsp;java.util.List&lt;<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;&nbsp;pigQuery2Rel&#8203;(java.lang.String&nbsp;pigQuery)
throws java.io.IOException</pre>
<div class="block">Parses a Pig script and converts it into relational algebra plans,
optimizing the result.
<p>Equivalent to <code>pigQuery2Rel(pigQuery, true, true, true)</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pigQuery</code> - Pig script</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A list of root nodes of the translated relational plans. Each of
these root corresponds to a sink operator (normally a STORE command) in the
Pig plan</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - Exception during parsing or translating Pig</dd>
</dl>
</li>
</ul>
<a id="pigQuery2Rel(java.lang.String,boolean,boolean,boolean)">
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<h4>pigQuery2Rel</h4>
<pre class="methodSignature">public&nbsp;java.util.List&lt;<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;&nbsp;pigQuery2Rel&#8203;(java.lang.String&nbsp;pigQuery,
boolean&nbsp;planRewrite,
boolean&nbsp;validate,
boolean&nbsp;usePigRules)
throws java.io.IOException</pre>
<div class="block">Parses a Pig script and converts it into relational algebra plans.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pigQuery</code> - Pig script</dd>
<dd><code>planRewrite</code> - Whether to rewrite the translated plan</dd>
<dd><code>validate</code> - Whether to validate the Pig logical plan before doing
translation</dd>
<dd><code>usePigRules</code> - Whether to use Pig Rules (see PigRelPlanner} to rewrite
translated rel plan</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A list of root nodes of the translated relational plans. Each of
these root corresponds to a sink operator (normally a STORE command) in the
Pig plan</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - Exception during parsing or translating Pig</dd>
</dl>
</li>
</ul>
<a id="getPigScript(java.io.InputStream,java.util.Map)">
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<h4>getPigScript</h4>
<pre class="methodSignature">public&nbsp;java.lang.String&nbsp;getPigScript&#8203;(java.io.InputStream&nbsp;in,
java.util.Map&lt;java.lang.String,&#8203;java.lang.String&gt;&nbsp;params)
throws java.io.IOException</pre>
<div class="block">Gets a Pig script string from a file after doing param substitution.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>in</code> - Pig script file</dd>
<dd><code>params</code> - Param sub map</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd>
</dl>
</li>
</ul>
<a id="pigScript2Rel(java.lang.String,java.util.Map,boolean)">
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<h4>pigScript2Rel</h4>
<pre class="methodSignature">public&nbsp;java.util.List&lt;<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;&nbsp;pigScript2Rel&#8203;(java.lang.String&nbsp;fileName,
java.util.Map&lt;java.lang.String,&#8203;java.lang.String&gt;&nbsp;params,
boolean&nbsp;planRewrite)
throws java.io.IOException</pre>
<div class="block">Parses a Pig script and converts it into relational algebra plans.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>fileName</code> - File name</dd>
<dd><code>params</code> - Param substitution map</dd>
<dd><code>planRewrite</code> - Whether to rewrite the translated plan</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A list of root nodes of the translated relational plans. Each of
these root corresponds to a sink operator (normally a STORE command) in the
Pig plan</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - Exception during parsing or translating Pig</dd>
</dl>
</li>
</ul>
<a id="pigPlan2Rel(org.apache.pig.newplan.logical.relational.LogicalPlan,boolean,boolean)">
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<h4>pigPlan2Rel</h4>
<pre class="methodSignature">private&nbsp;java.util.List&lt;<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;&nbsp;pigPlan2Rel&#8203;(org.apache.pig.newplan.logical.relational.LogicalPlan&nbsp;pigPlan,
boolean&nbsp;planRewrite,
boolean&nbsp;usePigRules)
throws org.apache.pig.impl.logicalLayer.FrontendException</pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.pig.impl.logicalLayer.FrontendException</code></dd>
</dl>
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</ul>
<a id="pigToSql(java.lang.String,org.apache.calcite.sql.SqlDialect)">
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<h4>pigToSql</h4>
<pre class="methodSignature">public&nbsp;java.util.List&lt;java.lang.String&gt;&nbsp;pigToSql&#8203;(java.lang.String&nbsp;pigQuery,
<a href="../sql/SqlDialect.html" title="class in org.apache.calcite.sql">SqlDialect</a>&nbsp;sqlDialect)
throws java.io.IOException</pre>
<div class="block">Converts a Pig script to a list of SQL statements.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pigQuery</code> - Pig script</dd>
<dd><code>sqlDialect</code> - Dialect of SQL language</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - Exception during parsing or translating Pig</dd>
</dl>
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</ul>
<a id="pigToSql(java.lang.String,org.apache.calcite.sql.SqlWriter)">
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<h4>pigToSql</h4>
<pre class="methodSignature">private&nbsp;java.util.List&lt;java.lang.String&gt;&nbsp;pigToSql&#8203;(java.lang.String&nbsp;pigQuery,
<a href="../sql/SqlWriter.html" title="interface in org.apache.calcite.sql">SqlWriter</a>&nbsp;writer)
throws java.io.IOException</pre>
<div class="block">Converts a Pig script to a list of SQL statements.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pigQuery</code> - Pig script</dd>
<dd><code>writer</code> - The SQL writer to decide dialect and format of SQL statements</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - Exception during parsing or translating Pig</dd>
</dl>
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</ul>
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<h4>optimizePlans</h4>
<pre class="methodSignature">private&nbsp;java.util.List&lt;<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;&nbsp;optimizePlans&#8203;(java.util.List&lt;<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;&nbsp;originalRels,
java.util.List&lt;<a href="../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a>&gt;&nbsp;rules)</pre>
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<ul class="blockListLast">
<li class="blockList">
<h4>resetPlannerRules</h4>
<pre class="methodSignature">private&nbsp;void&nbsp;resetPlannerRules&#8203;(<a href="../plan/RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a>&nbsp;planner,
java.util.List&lt;<a href="../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a>&gt;&nbsp;rulesToSet)</pre>
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