org.teiid.translator.jpa

Class JPA2ExecutionFactory

java.lang.Object

org.teiid.translator.ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

org.teiid.translator.jpa.JPA2ExecutionFactory

@Translator(name="jpa2",
            description="A translator for JPA2 based entities")
public class JPA2ExecutionFactory
extends ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

Nested Class Summary

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

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

Field Summary

Fields inherited from class org.teiid.translator.ExecutionFactory

DEFAULT_MAX_FROM_GROUPS, DEFAULT_MAX_IN_CRITERIA_SIZE

Constructor Summary

Constructors

Constructor and Description
JPA2ExecutionFactory()

Method Summary

Modifier and Type	Method and Description
void	closeConnection(javax.persistence.EntityManager connection, javax.persistence.EntityManagerFactory factory) Closes a connection object from the given connection factory.
ProcedureExecution	createDirectExecution(List<Argument> arguments, Command command, ExecutionContext executionContext, RuntimeMetadata metadata, javax.persistence.EntityManager connection)
ProcedureExecution	createProcedureExecution(Call command, ExecutionContext executionContext, RuntimeMetadata metadata, javax.persistence.EntityManager connection)
ResultSetExecution	createResultSetExecution(QueryExpression command, ExecutionContext executionContext, RuntimeMetadata metadata, javax.persistence.EntityManager connection)
UpdateExecution	createUpdateExecution(Command command, ExecutionContext executionContext, RuntimeMetadata metadata, javax.persistence.EntityManager connection)
javax.persistence.EntityManager	getConnection(javax.persistence.EntityManagerFactory factory, ExecutionContext executionContext) Return a connection object from the given connection factory.
List<String>	getDefaultSupportedFunctions()
Map<String,FunctionModifier>	getFunctionModifiers() Return a map of function name to FunctionModifier.
MetadataProcessor<javax.persistence.EntityManager>	getMetadataProcessor() Get a MetadataProcessor for the translator to read the metadata.
List<String>	getSupportedFunctions() Get list of all supported function names.
void	registerFunctionModifier(String name, FunctionModifier modifier) Add the FunctionModifier to the set of known modifiers.
void	start() Initialize the connector with supplied configuration
boolean	supportsAggregatesAvg() Support indicates connector can accept the AVG aggregate function
boolean	supportsAggregatesCount() Support indicates connector can accept the COUNT aggregate function
boolean	supportsAggregatesCountStar() Support indicates connector can accept the COUNT(*) aggregate function
boolean	supportsAggregatesDistinct() Support indicates connector can accept DISTINCT within aggregate functions
boolean	supportsAggregatesMax() Support indicates connector can accept the MAX aggregate function
boolean	supportsAggregatesMin() Support indicates connector can accept the MIN aggregate function
boolean	supportsAggregatesSum() Support indicates connector can accept the SUM aggregate function
boolean	supportsAliasedTable() Support indicates connector can accept groups with aliases
boolean	supportsCompareCriteriaEquals() Support indicates connector accepts criteria of form (element = constant)
boolean	supportsCompareCriteriaOrdered() Support indicates connector accepts criteria of form (element <=|>= constant) The query engine will may pushdown queries containing < or > if NOT is also supported.
boolean	supportsDependentJoins() NOTE: The pushed independent tuples will not have been converted to a unique set and may contain duplicates.
boolean	supportsExistsCriteria() Support indicates connector accepts the EXISTS criteria
boolean	supportsGroupBy() Whether the source supports an explicit GROUP BY clause
boolean	supportsHaving() Whether the source supports the HAVING clause
boolean	supportsInCriteria() Support indicates connector accepts criteria of form (element IN set)
boolean	supportsInCriteriaSubquery() Support indicates connector accepts IN criteria with a subquery on the right side
boolean	supportsInlineViews() Support indicates connector can accept inline views (subqueries in the FROM clause).
boolean	supportsIsNullCriteria() Support indicates connector accepts criteria of form (element IS NULL)
boolean	supportsLikeCriteria() Support indicates connector accepts criteria of form (element LIKE constant)
boolean	supportsNotCriteria() Support indicates connector accepts logical criteria NOT
boolean	supportsOrCriteria() Support indicates connector accepts logical criteria connected by OR
boolean	supportsRowLimit() Gets whether the connector can limit the number of rows returned by a query.
boolean	supportsRowOffset() Gets whether the connector supports a SQL clause (similar to the LIMIT with an offset) that can return result sets that start in the middle of the resulting rows returned by a query
boolean	supportsScalarSubqueries() Support indicates connector can accept scalar subqueries in the SELECT, WHERE, and HAVING clauses
boolean	supportsSelectExpression() Support indicates connector can accept expressions other than element symbols in the SELECT clause.
boolean	supportsSelfJoins() Support indicates connector can accept self-joins where a group is joined to itself with aliases.
boolean	useAnsiJoin() Whether the source prefers to use ANSI style joins.

Methods inherited from class org.teiid.translator.ExecutionFactory

addPushDownFunction, areLobsUsableAfterClose, createExecution, getCacheDirective, getCollationLocale, getConnection, getDefaultNullOrder, getDirectQueryProcedureName, getExcludedCommonTableExpressionName, getInstance, getLanguageFactory, getMaxDependentInPredicates, getMaxFromGroups, getMaxInCriteriaSize, getMetadata, getNativeQueryProcedureName, getPushDownFunctions, getRequiredLikeEscape, getSupportedJoinCriteria, getTransactionSupport, getTypeFacility, initCapabilities, isCopyLobs, isForkable, isImmutable, isSourceRequired, isSourceRequiredForCapabilities, 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, supportsBatchedUpdates, supportsBulkUpdate, supportsCommonTableExpressions, supportsCompareCriteriaOrderedExclusive, supportsConvert, supportsCorrelatedSubqueries, supportsCorrelatedSubqueryLimit, supportsDirectQueryProcedure, supportsElementaryOlapOperations, supportsExcept, supportsFormatLiteral, supportsFullDependentJoins, supportsFullOuterJoins, supportsFunctionsInGroupBy, supportsGeographyType, supportsGroupByMultipleDistinctAggregates, supportsGroupByRollup, supportsInnerJoins, supportsInsertWithQueryExpression, supportsIntersect, supportsIsDistinctCriteria, supportsLateralJoin, supportsLateralJoinCondition, supportsLikeCriteriaEscapeCharacter, supportsLikeRegex, supportsListAgg, supportsMultipleOpenExecutions, supportsNativeQueries, supportsOnlyCorrelatedSubqueries, supportsOnlyFormatLiterals, supportsOnlyLateralJoinProcedure, supportsOnlyLiteralComparison, supportsOnlySingleTableGroupBy, supportsOnlyTimestampAddLiteral, supportsOrderBy, supportsOrderByNullOrdering, supportsOrderByUnrelated, supportsOrderByWithExtendedGrouping, supportsOuterJoins, supportsPartialFiltering, supportsProcedureTable, supportsQuantifiedCompareCriteriaAll, supportsQuantifiedCompareCriteriaSome, supportsRecursiveCommonTableExpressions, supportsScalarSubqueryProjection, supportsSearchedCaseExpressions, supportsSelectDistinct, supportsSelectExpressionArrayType, supportsSelectWithoutFrom, supportsSetQueryLimitOffset, supportsSetQueryOrderBy, supportsSimilarTo, supportsStringAgg, supportsSubqueryCommonTableExpressions, supportsSubqueryInOn, supportsUnions, supportsUpsert, supportsWindowDistinctAggregates, supportsWindowFrameClause, supportsWindowFunctionCumeDist, supportsWindowFunctionNthValue, supportsWindowFunctionNtile, supportsWindowFunctionPercentRank, supportsWindowOrderByWithAggregates, useBindingsForDependentJoin

Methods inherited from class java.lang.Object

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

Constructor Detail

JPA2ExecutionFactory

public JPA2ExecutionFactory()

Method Detail

start

public void start()
           throws TranslatorException

Description copied from class: ExecutionFactory

Initialize the connector with supplied configuration

Overrides:

start in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

Throws:

TranslatorException

getConnection

public javax.persistence.EntityManager getConnection(javax.persistence.EntityManagerFactory factory,
                                                     ExecutionContext executionContext)
                                              throws TranslatorException

Description copied from class: ExecutionFactory

Return a connection object from the given connection factory. The default implementation assumes a JCA ConnectionFactory. Subclasses should override, if they use another type of connection factory or wish to use the ExecutionContext. By default calls ExecutionFactory.getConnection(Object)

Overrides:

getConnection in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

executionContext - null if this is a system request for a connection

Returns:

a connection

Throws:

TranslatorException

closeConnection

public void closeConnection(javax.persistence.EntityManager connection,
                            javax.persistence.EntityManagerFactory factory)

Description copied from class: ExecutionFactory

Closes a connection object from the given connection factory. The default implementation assumes a JCA Connection. Subclasses should override, if they use another type of connection.

Overrides:

closeConnection in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

createResultSetExecution

public ResultSetExecution createResultSetExecution(QueryExpression command,
                                                   ExecutionContext executionContext,
                                                   RuntimeMetadata metadata,
                                                   javax.persistence.EntityManager connection)
                                            throws TranslatorException

Overrides:

createResultSetExecution in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

Throws:

TranslatorException

createProcedureExecution

public ProcedureExecution createProcedureExecution(Call command,
                                                   ExecutionContext executionContext,
                                                   RuntimeMetadata metadata,
                                                   javax.persistence.EntityManager connection)
                                            throws TranslatorException

Overrides:

createProcedureExecution in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

Throws:

TranslatorException

createUpdateExecution

public UpdateExecution createUpdateExecution(Command command,
                                             ExecutionContext executionContext,
                                             RuntimeMetadata metadata,
                                             javax.persistence.EntityManager connection)
                                      throws TranslatorException

Overrides:

createUpdateExecution in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

Throws:

TranslatorException

createDirectExecution

public ProcedureExecution createDirectExecution(List<Argument> arguments,
                                                Command command,
                                                ExecutionContext executionContext,
                                                RuntimeMetadata metadata,
                                                javax.persistence.EntityManager connection)
                                         throws TranslatorException

Overrides:

createDirectExecution in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

Throws:

TranslatorException

getMetadataProcessor

public MetadataProcessor<javax.persistence.EntityManager> getMetadataProcessor()

Description copied from class: ExecutionFactory

Get a MetadataProcessor for the translator to read the metadata. Typically this will return a new instance.

Overrides:

getMetadataProcessor in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

Returns:

supportsSelectExpression

public boolean supportsSelectExpression()

Description copied from class: ExecutionFactory

Support indicates connector can accept expressions other than element symbols in the SELECT clause. Specific supports for the expression type are still checked.

Overrides:

supportsSelectExpression in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsAliasedTable

public boolean supportsAliasedTable()

Description copied from class: ExecutionFactory

Support indicates connector can accept groups with aliases

Overrides:

supportsAliasedTable in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsInlineViews

public boolean supportsInlineViews()

Description copied from class: ExecutionFactory

Support indicates connector can accept inline views (subqueries in the FROM clause).

Overrides:

supportsInlineViews in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsCompareCriteriaEquals

public boolean supportsCompareCriteriaEquals()

Description copied from class: ExecutionFactory

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

Overrides:

supportsCompareCriteriaEquals in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsCompareCriteriaOrdered

public boolean supportsCompareCriteriaOrdered()

Description copied from class: ExecutionFactory

Support indicates connector accepts criteria of form (element <=|>= constant)
The query engine will may pushdown queries containing < or > if NOT is also supported.

Overrides:

supportsCompareCriteriaOrdered in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsLikeCriteria

public boolean supportsLikeCriteria()

Description copied from class: ExecutionFactory

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

Overrides:

supportsLikeCriteria in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsInCriteria

public boolean supportsInCriteria()

Description copied from class: ExecutionFactory

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

Overrides:

supportsInCriteria in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsInCriteriaSubquery

public boolean supportsInCriteriaSubquery()

Description copied from class: ExecutionFactory

Support indicates connector accepts IN criteria with a subquery on the right side

Overrides:

supportsInCriteriaSubquery in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsIsNullCriteria

public boolean supportsIsNullCriteria()

Description copied from class: ExecutionFactory

Support indicates connector accepts criteria of form (element IS NULL)

Overrides:

supportsIsNullCriteria in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsOrCriteria

public boolean supportsOrCriteria()

Description copied from class: ExecutionFactory

Support indicates connector accepts logical criteria connected by OR

Overrides:

supportsOrCriteria in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsNotCriteria

public boolean supportsNotCriteria()

Description copied from class: ExecutionFactory

Support indicates connector accepts logical criteria NOT

Overrides:

supportsNotCriteria in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsExistsCriteria

public boolean supportsExistsCriteria()

Description copied from class: ExecutionFactory

Support indicates connector accepts the EXISTS criteria

Overrides:

supportsExistsCriteria in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsGroupBy

public boolean supportsGroupBy()

Description copied from class: ExecutionFactory

Whether the source supports an explicit GROUP BY clause

Overrides:

supportsGroupBy in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsHaving

public boolean supportsHaving()

Description copied from class: ExecutionFactory

Whether the source supports the HAVING clause

Overrides:

supportsHaving in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsAggregatesSum

public boolean supportsAggregatesSum()

Description copied from class: ExecutionFactory

Support indicates connector can accept the SUM aggregate function

Overrides:

supportsAggregatesSum in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsAggregatesAvg

public boolean supportsAggregatesAvg()

Description copied from class: ExecutionFactory

Support indicates connector can accept the AVG aggregate function

Overrides:

supportsAggregatesAvg in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsAggregatesMin

public boolean supportsAggregatesMin()

Description copied from class: ExecutionFactory

Support indicates connector can accept the MIN aggregate function

Overrides:

supportsAggregatesMin in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsAggregatesMax

public boolean supportsAggregatesMax()

Description copied from class: ExecutionFactory

Support indicates connector can accept the MAX aggregate function

Overrides:

supportsAggregatesMax in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsAggregatesCount

public boolean supportsAggregatesCount()

Description copied from class: ExecutionFactory

Support indicates connector can accept the COUNT aggregate function

Overrides:

supportsAggregatesCount in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsAggregatesCountStar

public boolean supportsAggregatesCountStar()

Description copied from class: ExecutionFactory

Support indicates connector can accept the COUNT(*) aggregate function

Overrides:

supportsAggregatesCountStar in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsAggregatesDistinct

public boolean supportsAggregatesDistinct()

Description copied from class: ExecutionFactory

Support indicates connector can accept DISTINCT within aggregate functions

Overrides:

supportsAggregatesDistinct in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsScalarSubqueries

public boolean supportsScalarSubqueries()

Description copied from class: ExecutionFactory

Support indicates connector can accept scalar subqueries in the SELECT, WHERE, and HAVING clauses

Overrides:

supportsScalarSubqueries in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

useAnsiJoin

public boolean useAnsiJoin()

Description copied from class: ExecutionFactory

Whether the source prefers to use ANSI style joins.

Overrides:

useAnsiJoin in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsDependentJoins

public boolean supportsDependentJoins()

Description copied from class: ExecutionFactory

NOTE: The pushed independent tuples will not have been converted to a unique set and may contain duplicates.

Overrides:

supportsDependentJoins in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

Returns:

true if dependent join key pushdown is supported

supportsSelfJoins

public boolean supportsSelfJoins()

Description copied from class: ExecutionFactory

Support indicates connector can accept self-joins where a group is joined to itself with aliases. Connector must also support ExecutionFactory.supportsAliasedTable().

Overrides:

supportsSelfJoins in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsRowLimit

public boolean supportsRowLimit()

Description copied from class: ExecutionFactory

Gets whether the connector can limit the number of rows returned by a query.

Overrides:

supportsRowLimit in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

supportsRowOffset

public boolean supportsRowOffset()

Description copied from class: ExecutionFactory

Gets whether the connector supports a SQL clause (similar to the LIMIT with an offset) that can return result sets that start in the middle of the resulting rows returned by a query

Overrides:

supportsRowOffset in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

getSupportedFunctions

public List<String> getSupportedFunctions()

Description copied from class: ExecutionFactory

Get list of all supported function names. Arithmetic functions have names like "+".

Overrides:

getSupportedFunctions in class ExecutionFactory<javax.persistence.EntityManagerFactory,javax.persistence.EntityManager>

See Also:

for a listing of system pushdown functions. Note that not all system functions are listed as some functions will use a common name such as CONCAT vs. the || operator, and other functions will be rewritten and not pushed down, such as SPACE.
Note: User defined functions should be specified fully qualified.

getFunctionModifiers

public Map<String,FunctionModifier> getFunctionModifiers()

Return a map of function name to FunctionModifier.

Returns:

Map of function name to FunctionModifier.

registerFunctionModifier

public void registerFunctionModifier(String name,
                                     FunctionModifier modifier)

Add the FunctionModifier to the set of known modifiers.

Parameters:

name -

modifier -

getDefaultSupportedFunctions

public List<String> getDefaultSupportedFunctions()