org.teiid.translator.yahoo
Class YahooExecutionFactory

java.lang.Object
  org.teiid.translator.ExecutionFactory<Object,Object>
      org.teiid.translator.yahoo.YahooExecutionFactory

@Translator(name="yahoo",
            description="A translator for testing to obtain stock quotes from Yahoo web site")
public class YahooExecutionFactory
extends ExecutionFactory<Object,Object>

Nested Class Summary

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

ExecutionFactory.Format, ExecutionFactory.NullOrder, ExecutionFactory.SupportedJoinCriteria

Field Summary

static int

YAHOO_MAX_SET_SIZE

Fields inherited from class org.teiid.translator.ExecutionFactory

DEFAULT_MAX_FROM_GROUPS, DEFAULT_MAX_IN_CRITERIA_SIZE

Constructor Summary

YahooExecutionFactory()

Method Summary

ResultSetExecution	createResultSetExecution(QueryExpression command, ExecutionContext executionContext, RuntimeMetadata metadata, Object connectionFactory)
void	getMetadata(MetadataFactory metadataFactory, Object connection) Implement to provide metadata to the metadata for use by the engine.
boolean	isSourceRequired() Flag that indicates if a underlying source connection required for this execution factory to work
void	start() Initialize the connector with supplied configuration
boolean	supportsCompareCriteriaEquals() Support indicates connector accepts criteria of form (element = constant)
boolean	supportsInCriteria() Support indicates connector accepts criteria of form (element IN set)
boolean	supportsOnlyLiteralComparison()

Methods inherited from class org.teiid.translator.ExecutionFactory

addPushDownFunction, areLobsUsableAfterClose, closeConnection, createDirectExecution, createExecution, createProcedureExecution, createUpdateExecution, getCacheDirective, getConnection, getConnection, getDefaultNullOrder, getInstance, getLanguageFactory, getMaxDependentInPredicates, getMaxFromGroups, getMaxInCriteriaSize, getNativeQueryProcedureName, getPushDownFunctions, getSupportedFunctions, getSupportedJoinCriteria, getTypeFacility, isCopyLobs, isForkable, isImmutable, isSourceRequiredForMetadata, requiresCriteria, setCopyLobs, setImmutable, setMaxDependentInPredicates, setMaxInCriteriaSize, setNativeQueryProcedureName, setRequiresCriteria, setSourceRequired, setSourceRequiredForMetadata, setSupportedJoinCriteria, setSupportsFullOuterJoins, setSupportsInnerJoins, setSupportsNativeQueries, setSupportsOrderBy, setSupportsOuterJoins, setSupportsSelectDistinct, supportsAdvancedOlapOperations, supportsAggregatesAvg, supportsAggregatesCount, supportsAggregatesCountStar, supportsAggregatesDistinct, supportsAggregatesEnhancedNumeric, supportsAggregatesMax, supportsAggregatesMin, supportsAggregatesSum, supportsAliasedTable, supportsArrayAgg, supportsArrayType, supportsBatchedUpdates, supportsBulkUpdate, supportsCommonTableExpressions, supportsCompareCriteriaOrdered, supportsConvert, supportsCorrelatedSubqueries, supportsDependentJoins, supportsElementaryOlapOperations, supportsExcept, supportsExistsCriteria, supportsFormatLiteral, supportsFullOuterJoins, supportsFunctionsInGroupBy, supportsGroupBy, supportsHaving, supportsInCriteriaSubquery, supportsInlineViews, supportsInnerJoins, supportsInsertWithQueryExpression, supportsIntersect, supportsIsNullCriteria, supportsLikeCriteria, supportsLikeCriteriaEscapeCharacter, supportsLikeRegex, supportsNativeQueries, supportsNotCriteria, supportsOnlyCorrelatedSubqueries, supportsOnlyFormatLiterals, supportsOnlySingleTableGroupBy, supportsOrCriteria, supportsOrderBy, supportsOrderByNullOrdering, supportsOrderByUnrelated, supportsOuterJoins, supportsQuantifiedCompareCriteriaAll, supportsQuantifiedCompareCriteriaSome, supportsRowLimit, supportsRowOffset, supportsScalarSubqueries, supportsSearchedCaseExpressions, supportsSelectDistinct, supportsSelectExpression, supportsSelfJoins, supportsSetQueryOrderBy, supportsSimilarTo, supportsSubqueryInOn, supportsUnions, supportsWindowDistinctAggregates, supportsWindowOrderByWithAggregates, useAnsiJoin

Methods inherited from class java.lang.Object

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

Field Detail

YAHOO_MAX_SET_SIZE

public static final int YAHOO_MAX_SET_SIZE

See Also:

Constant Field Values

Constructor Detail

YahooExecutionFactory

public YahooExecutionFactory()

Method Detail

start

public void start()
           throws TranslatorException

Description copied from class: ExecutionFactory

Initialize the connector with supplied configuration

Overrides:

start in class ExecutionFactory<Object,Object>

Throws:

TranslatorException

createResultSetExecution

public ResultSetExecution createResultSetExecution(QueryExpression command,
                                                   ExecutionContext executionContext,
                                                   RuntimeMetadata metadata,
                                                   Object connectionFactory)
                                            throws TranslatorException

Overrides:

createResultSetExecution in class ExecutionFactory<Object,Object>

Throws:

TranslatorException

supportsCompareCriteriaEquals

public boolean supportsCompareCriteriaEquals()

Description copied from class: ExecutionFactory

Support indicates connector accepts criteria of form (element = constant)

Overrides:

supportsCompareCriteriaEquals in class ExecutionFactory<Object,Object>

supportsInCriteria

public boolean supportsInCriteria()

Description copied from class: ExecutionFactory

Support indicates connector accepts criteria of form (element IN set)

Overrides:

supportsInCriteria in class ExecutionFactory<Object,Object>

isSourceRequired

public boolean isSourceRequired()

Description copied from class: ExecutionFactory

Flag that indicates if a underlying source connection required for this execution factory to work

Overrides:

isSourceRequired in class ExecutionFactory<Object,Object>

Returns:

getMetadata

public void getMetadata(MetadataFactory metadataFactory,
                        Object connection)
                 throws TranslatorException

Description copied from class: ExecutionFactory

Implement to provide metadata to the metadata for use by the engine. This is the primary method of creating metadata for dynamic VDBs.

Overrides:

getMetadata in class ExecutionFactory<Object,Object>

connection - may be null if the source is not required

Throws:

TranslatorException - to indicate a recoverable error, otherwise a RuntimeException

See Also:

ExecutionFactory.isSourceRequiredForMetadata()

supportsOnlyLiteralComparison

public boolean supportsOnlyLiteralComparison()

Overrides:

supportsOnlyLiteralComparison in class ExecutionFactory<Object,Object>

Returns:

true if only Literal comparisons (equality, ordered, like, etc.) are supported for non-join conditions.