Package org.teiid.translator.hive

Class ImpalaExecutionFactory

java.lang.Object

org.teiid.translator.ExecutionFactory<DataSource,Connection>

org.teiid.translator.jdbc.JDBCExecutionFactory

org.teiid.translator.hive.BaseHiveExecutionFactory

org.teiid.translator.hive.ImpalaExecutionFactory

@Translator(name="impala",
            description="A translator for Coludera\'s Impala based database on HDFS")
public class ImpalaExecutionFactory
extends BaseHiveExecutionFactory

Nested Class Summary

Nested classes/interfaces inherited from class org.teiid.translator.jdbc.JDBCExecutionFactory

JDBCExecutionFactory.StructRetrieval

Nested classes/interfaces inherited from class org.teiid.translator.ExecutionFactory

ExecutionFactory.Format, ExecutionFactory.NullOrder, ExecutionFactory.SupportedJoinCriteria, ExecutionFactory.TransactionSupport

Field Summary

Fields

Modifier and Type	Field	Description
static String	IMPALA
static Version	ONE_2_1
static Version	ONE_3_1
static Version	TWO_0
static Version	TWO_2

Fields inherited from class org.teiid.translator.hive.BaseHiveExecutionFactory

convert, useDatabaseMetaData

Fields inherited from class org.teiid.translator.jdbc.JDBCExecutionFactory

DEFAULT_MAX_DEPENDENT_PREDICATES, DEFAULT_MAX_IN_CRITERIA, DEFAULT_TIME_ZONE, dialect

Fields inherited from class org.teiid.translator.ExecutionFactory

DEFAULT_MAX_FROM_GROUPS, DEFAULT_MAX_IN_CRITERIA_SIZE, DEFAULT_MAX_PROJECTED_COLUMNS

Constructor Summary

Constructors

Constructor	Description
ImpalaExecutionFactory()

Method Summary

Modifier and Type	Method	Description
ExecutionFactory.NullOrder	getDefaultNullOrder()
List<String>	getSupportedFunctions()
ExecutionFactory.SupportedJoinCriteria	getSupportedJoinCriteria()
void	initCapabilities(Connection connection)
boolean	requiresLeftLinearJoin()
boolean	rewriteBooleanFunctions()
void	start()
boolean	supportsCommonTableExpressions()
boolean	supportsElementaryOlapOperations()
boolean	supportsGroupByMultipleDistinctAggregates()
boolean	supportsHaving()
boolean	supportsIsDistinctCriteria()
boolean	supportsLikeRegex()
boolean	supportsOrderByNullOrdering()
boolean	supportsRowLimit()
boolean	supportsRowOffset()
boolean	supportsStringAgg()
List<?>	translate(LanguageObject obj, ExecutionContext context)
List<?>	translateCommand(Command command, ExecutionContext context)
List<?>	translateLimit(Limit limit, ExecutionContext context)
String	translateLiteralDate(Date dateValue)
protected boolean	usesDatabaseVersion()

Methods inherited from class org.teiid.translator.hive.BaseHiveExecutionFactory

addAggregatePushDownFunction, addSourceComment, bindValue, createMetadataProcessor, createProcedureExecution, createUpdateExecution, getLikeRegexString, getMetadataProcessor, getSQLConversionVisitor, hasTimeType, isUseDatabaseMetaData, retrieveValue, retrieveValue, setUseDatabaseMetaData, supportsBatchedUpdates, supportsBulkUpdate, supportsConvert, supportsCorrelatedSubqueries, supportsExcept, supportsExistsCriteria, supportsInCriteriaSubquery, supportsInlineViews, supportsInsertWithQueryExpression, supportsIntersect, supportsLikeCriteriaEscapeCharacter, supportsOrderByUnrelated, supportsQuantifiedCompareCriteriaAll, supportsQuantifiedCompareCriteriaSome, supportsScalarSubqueries, supportsUnions, supportsWindowFunctionNthValue, translateLiteralBoolean, translateLiteralTime, translateLiteralTimestamp, useAnsiJoin, useAsInGroupAlias

Methods inherited from class org.teiid.translator.jdbc.JDBCExecutionFactory

afterInitialConnectionObtained, closeConnection, convertObject, createDirectExecution, createResultSetExecution, createTempTable, executeStoredProcedure, formatDateValue, formatDateValue, getCommentFormat, getConnection, getCreateTemporaryTablePostfix, getCreateTemporaryTableString, getCreateTempTableSQL, getDatabaseCalendar, getDatabaseTimeZone, getDatabaseVersion, getDefaultSupportedFunctions, getDialect, getFunctionModifiers, getHibernateDialectClassName, getLateralKeyword, getMaxPreparedInsertBatchSize, getMetadata, getRemovePushdownCharacters, getSetOperationString, getSourceComment, getStructRetrieval, getTemporaryTableName, getTimestampNanoPrecision, getVersion, intializeConnectionAfterCancel, isCharacterType, isDefaultTimeZone, isEnableDependentJoins, isExtendedAscii, isNonAscii, isNonAscii, isNonAsciiFunction, isSourceRequired, isSourceRequiredForCapabilities, isTrimStrings, loadedTemporaryTable, obtainedConnection, preserveNullTyping, registerFunctionModifier, registerSpecificTypeOfOutParameter, replaceElementName, retrieveGeographyValue, retrieveGeographyValue, retrieveGeometryValue, retrieveGeometryValue, setCommentFormat, setDatabaseTimeZone, setDatabaseVersion, setDatabaseVersion, setEnableDependentJoins, setFetchSize, setMaxPreparedInsertBatchSize, setRemovePushdownCharacters, setStructRetrieval, setTrimStrings, setUseBindingsForDependentJoin, setUseBindVariables, setUseCommentsInSourceQuery, supportsAggregatesAvg, supportsAggregatesCount, supportsAggregatesCountStar, supportsAggregatesDistinct, supportsAggregatesMax, supportsAggregatesMin, supportsAggregatesSum, supportsAliasedTable, supportsBooleanExpressions, supportsCompareCriteriaEquals, supportsCompareCriteriaOrdered, supportsDependentJoins, supportsFullDependentJoins, supportsGeneratedKeys, supportsGeneratedKeys, supportsGroupBy, supportsInCriteria, supportsIsNullCriteria, supportsLikeCriteria, supportsNotCriteria, supportsOrCriteria, supportsProcedureParameterExpression, supportsSearchedCaseExpressions, supportsSelectExpression, supportsSelfJoins, supportsSetQueryOrderBy, tempTableRequiresTransaction, translateGeographyLiteral, translateGeographyParameter, translateGeographySelect, translateGeometryLiteral, translateGeometryParameter, translateGeometrySelect, translateLiteralBinaryType, useBindingsForDependentJoin, useBindVariables, useColumnNamesForGeneratedKeys, useCommentsInSourceQuery, useNBindingType, useParensForJoins, useParensForSetQueries, usePreparedStatements, useScientificNotation, useSelectLimit, useStreamsForLobs, useUnicodePrefix, useWithRollup

Methods inherited from class org.teiid.translator.ExecutionFactory

addPushDownFunction, areLobsUsableAfterClose, createExecution, getCacheDirective, getCollationLocale, getConnection, getDirectQueryProcedureName, getExcludedCommonTableExpressionName, getInstance, getLanguageFactory, getMaxDependentInPredicates, getMaxFromGroups, getMaxInCriteriaSize, getMaxProjectedColumns, getNativeQueryProcedureName, getPushDownFunctions, getRequiredLikeEscape, getTransactionSupport, getTypeFacility, isCopyLobs, isForkable, isImmutable, isSourceRequiredForMetadata, isThreadBound, requiresCriteria, returnsSingleUpdateCount, setCollationLocale, setCopyLobs, setDirectQueryProcedureName, setExcludedCommonTableExpressionName, setImmutable, setMaxDependentInPredicates, setMaxInCriteriaSize, setNativeQueryProcedureName, setRequiresCriteria, setSourceRequired, setSourceRequiredForMetadata, setSupportedJoinCriteria, setSupportsDirectQueryProcedure, setSupportsFullOuterJoins, setSupportsInnerJoins, setSupportsNativeQueries, setSupportsOrderBy, setSupportsOuterJoins, setSupportsSelectDistinct, setThreadBound, setTransactionSupport, supportsAdvancedOlapOperations, supportsAggregatesCountBig, supportsAggregatesEnhancedNumeric, supportsArrayAgg, supportsArrayType, supportsCompareCriteriaOrderedExclusive, supportsCorrelatedSubqueryLimit, supportsDirectQueryProcedure, supportsFormatLiteral, supportsFullOuterJoins, supportsFunctionsInGroupBy, supportsGeographyType, supportsGroupByRollup, supportsInnerJoins, supportsLateralJoin, supportsLateralJoinCondition, supportsListAgg, supportsMultipleOpenExecutions, supportsNativeQueries, supportsOnlyCorrelatedSubqueries, supportsOnlyFormatLiterals, supportsOnlyLateralJoinProcedure, supportsOnlyLiteralComparison, supportsOnlyRelationshipStyleJoins, supportsOnlySingleTableGroupBy, supportsOnlyTimestampAddLiteral, supportsOrderBy, supportsOrderByWithExtendedGrouping, supportsOuterJoins, supportsPartialFiltering, supportsProcedureTable, supportsRecursiveCommonTableExpressions, supportsScalarSubqueryProjection, supportsSelectDistinct, supportsSelectExpressionArrayType, supportsSelectWithoutFrom, supportsSetQueryLimitOffset, supportsSimilarTo, supportsSubqueryCommonTableExpressions, supportsSubqueryInOn, supportsUpsert, supportsWindowDistinctAggregates, supportsWindowFrameClause, supportsWindowFunctionCumeDist, supportsWindowFunctionNtile, supportsWindowFunctionPercentRank, supportsWindowOrderByWithAggregates

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

IMPALA

public static String IMPALA

TWO_2

public static final Version TWO_2

TWO_0

public static final Version TWO_0

ONE_2_1

public static final Version ONE_2_1

ONE_3_1

public static final Version ONE_3_1

Constructor Detail

ImpalaExecutionFactory

public ImpalaExecutionFactory()

Method Detail

start

public void start()
           throws TranslatorException

Overrides:

start in class JDBCExecutionFactory

Throws:

TranslatorException

initCapabilities

public void initCapabilities(Connection connection)
                      throws TranslatorException

Overrides:

initCapabilities in class JDBCExecutionFactory

Throws:

TranslatorException

getSupportedFunctions

public List<String> getSupportedFunctions()

Overrides:

getSupportedFunctions in class JDBCExecutionFactory

supportsCommonTableExpressions

public boolean supportsCommonTableExpressions()

Overrides:

supportsCommonTableExpressions in class BaseHiveExecutionFactory

supportsElementaryOlapOperations

public boolean supportsElementaryOlapOperations()

Overrides:

supportsElementaryOlapOperations in class ExecutionFactory<DataSource,Connection>

supportsHaving

public boolean supportsHaving()

Overrides:

supportsHaving in class BaseHiveExecutionFactory

supportsRowLimit

public boolean supportsRowLimit()

Overrides:

supportsRowLimit in class BaseHiveExecutionFactory

supportsRowOffset

public boolean supportsRowOffset()

Overrides:

supportsRowOffset in class ExecutionFactory<DataSource,Connection>

getDefaultNullOrder

public ExecutionFactory.NullOrder getDefaultNullOrder()

Overrides:

getDefaultNullOrder in class JDBCExecutionFactory

supportsOrderByNullOrdering

public boolean supportsOrderByNullOrdering()

Overrides:

supportsOrderByNullOrdering in class ExecutionFactory<DataSource,Connection>

getSupportedJoinCriteria

public ExecutionFactory.SupportedJoinCriteria getSupportedJoinCriteria()

Overrides:

getSupportedJoinCriteria in class ExecutionFactory<DataSource,Connection>

requiresLeftLinearJoin

public boolean requiresLeftLinearJoin()

Overrides:

requiresLeftLinearJoin in class BaseHiveExecutionFactory

supportsLikeRegex

public boolean supportsLikeRegex()

Overrides:

supportsLikeRegex in class BaseHiveExecutionFactory

translateCommand

public List<?> translateCommand(Command command,
                                ExecutionContext context)

Overrides:

translateCommand in class BaseHiveExecutionFactory

translate

public List<?> translate(LanguageObject obj,
                         ExecutionContext context)

Overrides:

translate in class JDBCExecutionFactory

usesDatabaseVersion

protected boolean usesDatabaseVersion()

Overrides:

usesDatabaseVersion in class JDBCExecutionFactory

translateLimit

public List<?> translateLimit(Limit limit,
                              ExecutionContext context)

Overrides:

translateLimit in class BaseHiveExecutionFactory

translateLiteralDate

public String translateLiteralDate(Date dateValue)

Overrides:

translateLiteralDate in class JDBCExecutionFactory

supportsGroupByMultipleDistinctAggregates

public boolean supportsGroupByMultipleDistinctAggregates()

Overrides:

supportsGroupByMultipleDistinctAggregates in class ExecutionFactory<DataSource,Connection>

supportsStringAgg

public boolean supportsStringAgg()

Overrides:

supportsStringAgg in class ExecutionFactory<DataSource,Connection>

supportsIsDistinctCriteria

public boolean supportsIsDistinctCriteria()

Overrides:

supportsIsDistinctCriteria in class ExecutionFactory<DataSource,Connection>

rewriteBooleanFunctions

public boolean rewriteBooleanFunctions()

Overrides:

rewriteBooleanFunctions in class BaseHiveExecutionFactory