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| <h1 title="Package" class="title">Package org.apache.drill.exec.store.mock</h1> |
| <div class="docSummary"> |
| <div class="block">Defines a mock data source which generates dummy test data for use |
| in testing.</div> |
| </div> |
| <p>See: <a href="#package.description">Description</a></p> |
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| <tr> |
| <th class="colFirst" scope="col">Interface</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/FieldGen.html" title="interface in org.apache.drill.exec.store.mock">FieldGen</a></td> |
| <td class="colLast"> |
| <div class="block">Interface which all mock column data generators must |
| implement.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </li> |
| <li class="blockList"> |
| <table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Class Summary table, listing classes, and an explanation"> |
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| <tr> |
| <th class="colFirst" scope="col">Class</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/AbstractFieldGen.html" title="class in org.apache.drill.exec.store.mock">AbstractFieldGen</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/BooleanGen.html" title="class in org.apache.drill.exec.store.mock">BooleanGen</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/ColumnDef.html" title="class in org.apache.drill.exec.store.mock">ColumnDef</a></td> |
| <td class="colLast"> |
| <div class="block">Defines a column for the "enhanced" version of the mock data |
| source.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/DateGen.html" title="class in org.apache.drill.exec.store.mock">DateGen</a></td> |
| <td class="colLast"> |
| <div class="block">Very simple date value generator that produces ISO dates |
| uniformly distributed over the last year.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/DoubleGen.html" title="class in org.apache.drill.exec.store.mock">DoubleGen</a></td> |
| <td class="colLast"> |
| <div class="block">Generates random field values uniformly distributed over |
| the range +-1 million, with any number of digits past |
| the decimal point.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/ExtendedMockBatchReader.html" title="class in org.apache.drill.exec.store.mock">ExtendedMockBatchReader</a></td> |
| <td class="colLast"> |
| <div class="block">Extended form of the mock record reader that uses generator class |
| instances to create the mock values.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/IntGen.html" title="class in org.apache.drill.exec.store.mock">IntGen</a></td> |
| <td class="colLast"> |
| <div class="block">Generates integer values uniformly randomly distributed over |
| the entire 32-bit integer range from |
| <code>Integer.MIN_VALUE</code> to <code>Integer.MAX_VALUE</code>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/MockBreakageStorage.html" title="class in org.apache.drill.exec.store.mock">MockBreakageStorage</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/MockBreakageStorage.MockBreakageStorageEngineConfig.html" title="class in org.apache.drill.exec.store.mock">MockBreakageStorage.MockBreakageStorageEngineConfig</a></td> |
| <td class="colLast"> |
| <div class="block">Each storage plugin requires a unique config class to allow |
| config --> impl lookups to be unique.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/MockGroupScanPOP.html" title="class in org.apache.drill.exec.store.mock">MockGroupScanPOP</a></td> |
| <td class="colLast"> |
| <div class="block">Describes a "group" scan of a (logical) mock table.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/MockRecordReader.html" title="class in org.apache.drill.exec.store.mock">MockRecordReader</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/MockScanBatchCreator.html" title="class in org.apache.drill.exec.store.mock">MockScanBatchCreator</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/MockStorageEngine.html" title="class in org.apache.drill.exec.store.mock">MockStorageEngine</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/MockStorageEngineConfig.html" title="class in org.apache.drill.exec.store.mock">MockStorageEngineConfig</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/MockStorePOP.html" title="class in org.apache.drill.exec.store.mock">MockStorePOP</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/MockSubScanPOP.html" title="class in org.apache.drill.exec.store.mock">MockSubScanPOP</a></td> |
| <td class="colLast"> |
| <div class="block">Describes a physical scan operation for the mock data source.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/MockTableDef.html" title="class in org.apache.drill.exec.store.mock">MockTableDef</a></td> |
| <td class="colLast"> |
| <div class="block">Structure of a mock table definition file.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/MockTableDef.MockColumn.html" title="class in org.apache.drill.exec.store.mock">MockTableDef.MockColumn</a></td> |
| <td class="colLast"> |
| <div class="block">Meta-data description of the columns we wish to create during a simulated |
| scan.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/MockTableDef.MockScanEntry.html" title="class in org.apache.drill.exec.store.mock">MockTableDef.MockScanEntry</a></td> |
| <td class="colLast"> |
| <div class="block">Describes one simulated file (or block) within the logical file scan |
| described by this group scan.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/MockTableDef.MockTableSelection.html" title="class in org.apache.drill.exec.store.mock">MockTableDef.MockTableSelection</a></td> |
| <td class="colLast"> |
| <div class="block">A tiny wrapper class to add required DrillTableSelection behaviour to |
| the entries list.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/MoneyGen.html" title="class in org.apache.drill.exec.store.mock">MoneyGen</a></td> |
| <td class="colLast"> |
| <div class="block">Generates a mock money field as a double over the range 0 |
| to 1 million.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/StringGen.html" title="class in org.apache.drill.exec.store.mock">StringGen</a></td> |
| <td class="colLast"> |
| <div class="block">Generates a mock string field of the given length.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/drill/exec/store/mock/VaryingStringGen.html" title="class in org.apache.drill.exec.store.mock">VaryingStringGen</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| </tbody> |
| </table> |
| </li> |
| </ul> |
| <a name="package.description"> |
| <!-- --> |
| </a> |
| <h2 title="Package org.apache.drill.exec.store.mock Description">Package org.apache.drill.exec.store.mock Description</h2> |
| <div class="block">Defines a mock data source which generates dummy test data for use |
| in testing. The data source operates in two modes: |
| <ul> |
| <li><b>Classic:</b> used in physical plans in many unit tests. |
| The plan specifies a set of columns; data is generated by the |
| vectors themselves based on two alternating values.</li> |
| <li><b>Enhanced:</b> available for use in newer unit tests. |
| Enhances the physical plan description to allow specifying a data |
| generator class (for various types, data formats, etc.) Also |
| provides a data storage engine framework to allow using mock |
| tables in SQL queries.</li> |
| </ul> |
| <h3>Classic Mode</h3> |
| Create a scan operator that looks like the following (from |
| <tt>/src/test/resources/functions/cast/two_way_implicit_cast.json</tt>, |
| used in <code>TestReverseImplicitCast</code>): |
| <pre><code> |
| graph:[ |
| {</div> |
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