Package org.hibernate.dialect

Class HANAColumnStoreDialect

java.lang.Object

org.hibernate.dialect.Dialect

org.hibernate.dialect.AbstractHANADialect

org.hibernate.dialect.HANAColumnStoreDialect

All Implemented Interfaces:

FunctionContributor, TypeContributor, ConversionContext

Direct Known Subclasses:

HANACloudColumnStoreDialect, HANASpatialDialect

public class HANAColumnStoreDialect
extends AbstractHANADialect

An SQL dialect for the SAP HANA column store.

For more information on interacting with the SAP HANA database, refer to the SAP HANA SQL and System Views Reference and the SAP HANA Client Interface Programming Reference.

Column tables are created by this dialect when using the auto-ddl feature.

Nested Class Summary

Nested classes/interfaces inherited from class org.hibernate.dialect.AbstractHANADialect

AbstractHANADialect.HANABlobType

Nested classes/interfaces inherited from class org.hibernate.dialect.Dialect

Dialect.SizeStrategy, Dialect.SizeStrategyImpl

Field Summary

Fields inherited from class org.hibernate.dialect.Dialect

CLOSED_QUOTE, LEGACY_LOB_MERGE_STRATEGY, LOG_BASE2OF10, NEW_LOCATOR_LOB_MERGE_STRATEGY, QUOTE, STANDARD_MULTI_KEY_LOAD_SIZING_STRATEGY, STREAM_XFER_LOB_MERGE_STRATEGY

Constructor Summary

Constructors

Constructor	Description
HANAColumnStoreDialect()
HANAColumnStoreDialect(DatabaseVersion version)
HANAColumnStoreDialect(DialectResolutionInfo info)

Method Summary

Modifier and Type	Method	Description
String	getCreateTableString()	The command used to create a table, usually create table.
SqmMultiTableInsertStrategy	getFallbackSqmInsertStrategy(EntityMappingType entityDescriptor, RuntimeModelCreationContext runtimeModelCreationContext)	The SqmMultiTableInsertStrategy to use when not specified by QueryEngineOptions.getCustomSqmMultiTableInsertStrategy().
SqmMultiTableMutationStrategy	getFallbackSqmMutationStrategy(EntityMappingType entityDescriptor, RuntimeModelCreationContext runtimeModelCreationContext)	The SqmMultiTableMutationStrategy to use when not specified by QueryEngineOptions.getCustomSqmMultiTableMutationStrategy().
int	getMaxVarcharLength()	The biggest size value that can be supplied as argument to a Types.VARCHAR-like type.
TemporaryTableKind	getSupportedTemporaryTableKind()	The kind of temporary tables that are supported on this database.
String	getTemporaryTableCreateCommand()	The command to create a temporary table.
String	getTemporaryTableCreateOptions()	An arbitrary SQL fragment appended to the end of the statement to create a temporary table, specifying dialect-specific options, or null if there are no options to specify.
String	getTemporaryTableTruncateCommand()	The command to truncate a temporary table.
void	initializeFunctionRegistry(FunctionContributions functionContributions)	Initialize the given registry with any dialect-specific functions.
boolean	isUseUnicodeStringTypes()
protected void	registerDefaultKeywords()	Register the reserved words of ANSI-standard SQL as keywords.
protected boolean	supportsAsciiStringTypes()
protected Boolean	useUnicodeStringTypesDefault()

Methods inherited from class org.hibernate.dialect.AbstractHANADialect

appendBooleanValueString, appendDatetimeFormat, appendDateTimeLiteral, appendDateTimeLiteral, buildIdentifierHelper, buildSQLExceptionConversionDelegate, castPattern, columnType, contributeTypes, createVersion, defaultScrollMode, dropConstraints, extractPattern, generatedAs, getAddColumnString, getAddColumnSuffixString, getBlobTypeDescriptor, getCallableStatementSupport, getCascadeConstraintsString, getColumnComment, getCurrentSchemaCommand, getCurrentTimestampSelectString, getDefaultDecimalPrecision, getDefaultNonContextualLobCreation, getDefaultUseGetGeneratedKeys, getForUpdateNowaitString, getForUpdateNowaitString, getForUpdateString, getForUpdateString, getFractionalSecondPrecisionInNanos, getIdentityColumnSupport, getLimitHandler, getMaxAliasLength, getMaxIdentifierLength, getMaxNVarcharLength, getMaxVarbinaryLength, getNameQualifierSupport, getNullOrdering, getQueryHintString, getQuerySequencesString, getReadLockString, getReadLockString, getSelectGUIDString, getSequenceInformationExtractor, getSequenceSupport, getSqlAstTranslatorFactory, getTableComment, getTableExporter, getWriteLockString, getWriteLockString, getWriteRowLockStrategy, isCurrentTimestampSelectStringCallable, registerColumnTypes, registerResultSetOutParameter, registerResultSetOutParameter, supportsColumnCheck, supportsCommentOn, supportsCurrentTimestampSelection, supportsExistsInSelect, supportsExpectedLobUsagePattern, supportsFractionalTimestampArithmetic, supportsJdbcConnectionLobCreation, supportsLateral, supportsNoColumnsInsert, supportsNoWait, supportsOffsetInSubquery, supportsOrderByInSubquery, supportsPartitionBy, supportsTableCheck, supportsTupleDistinctCounts, supportsUnboundedLobLocatorMaterialization, supportsValuesListForInsert, supportsWindowFunctions, timestampaddPattern, timestampdiffPattern

Methods inherited from class org.hibernate.dialect.Dialect

addSqlHintOrComment, appendArrayLiteral, appendBinaryLiteral, appendDateTimeLiteral, appendIntervalLiteral, appendLiteral, appendLockHint, appendUUIDLiteral, applyLocksToSql, augmentPhysicalTableTypes, augmentRecognizedTableTypes, canBatchTruncate, canCreateCatalog, canCreateSchema, canDisableConstraints, castType, checkVersion, closeQuote, contribute, contributeFunctions, createOptionalTableUpdateOperation, currentDate, currentLocalTime, currentLocalTimestamp, currentTime, currentTimestamp, currentTimestampWithTimeZone, doesReadCommittedCauseWritersToBlockReaders, doesRepeatableReadCauseReadersToBlockWriters, equivalentTypes, escapeComment, forceLobAsLastValue, getAddForeignKeyConstraintString, getAddForeignKeyConstraintString, getAddPrimaryKeyConstraintString, getAggregateSupport, getAlterColumnTypeString, getAlterTableString, getArrayTypeName, getAuxiliaryDatabaseObjectExporter, getBatchLoadSizingStrategy, getCaseInsensitiveLike, getCheckCondition, getCheckCondition, getColumnAliasExtractor, getCreateCatalogCommand, getCreateIndexString, getCreateIndexTail, getCreateMultisetTableString, getCreateSchemaCommand, getCreateTemporaryTableColumnAnnotation, getCreateUserDefinedTypeExtensionsString, getCreateUserDefinedTypeKindString, getDefaultLobLength, getDefaultProperties, getDefaultStatementBatchSize, getDefaultTimestampPrecision, getDisableConstraintsStatement, getDisableConstraintStatement, getDmlTargetColumnQualifierSupport, getDoublePrecision, getDropCatalogCommand, getDropForeignKeyString, getDropSchemaCommand, getDropTableString, getDropUniqueKeyString, getEnableConstraintsStatement, getEnableConstraintStatement, getEnumTypeDeclaration, getFallbackSchemaManagementTool, getFloatPrecision, getForeignKeyExporter, getForUpdateSkipLockedString, getForUpdateSkipLockedString, getForUpdateString, getForUpdateString, getForUpdateString, getGroupBySelectItemReferenceStrategy, getHqlTranslator, getIndexExporter, getInExpressionCountLimit, getKeywords, getLobMergeStrategy, getLockingStrategy, getLockRowIdentifier, getLowercaseFunction, getMaxNVarcharCapacity, getMaxVarbinaryCapacity, getMaxVarcharCapacity, getMinimumSupportedVersion, getMultiKeyLoadSizingStrategy, getNationalizationSupport, getNativeIdentifierGenerationType, getNativeIdentifierGeneratorStrategy, getNativeParameterMarkerStrategy, getNoColumnsInsertString, getNullColumnString, getNullColumnString, getParameterCountLimit, getPreferredSqlTypeCodeForArray, getPreferredSqlTypeCodeForBoolean, getQueryHintString, getReadRowLockStrategy, getResultSet, getResultSet, getResultSet, getRowIdColumnString, getSchemaNameResolver, getSelectClauseNullString, getSequenceExporter, getSizeStrategy, getSqmTranslatorFactory, getTableCleaner, getTableMigrator, getTableTypeString, getTemporaryTableAfterUseAction, getTemporaryTableBeforeUseAction, getTemporaryTableDdlTransactionHandling, getTemporaryTableDropCommand, getTemporaryTableExporter, getTimeoutInSeconds, getTimeZoneSupport, getTruncateTableStatement, getTruncateTableStatements, getUniqueDelegate, getUniqueKeyExporter, getUserDefinedTypeComment, getUserDefinedTypeExporter, getVersion, getViolatedConstraintNameExtractor, hasAlterTable, hasDataTypeBeforeGeneratedAs, hasSelfReferentialForeignKeyBug, initDefaultProperties, inlineLiteral, isAnsiNullOn, isEmptyStringTreatedAsNull, isJdbcLogWarningsEnabledByDefault, isLob, isLockTimeoutParameterized, openQuote, ordinal, prependComment, qualifyIndexName, quote, registerKeyword, registerKeywords, requiresCastForConcatenatingNonStrings, requiresFloatCastingOfIntegerDivision, requiresParensForTupleCounts, requiresParensForTupleDistinctCounts, resolveSqlTypeCode, resolveSqlTypeCode, resolveSqlTypeDescriptor, resolveSqlTypeLength, rowId, rowIdSqlType, supportsAlterColumnType, supportsBindAsCallableArgument, supportsBitType, supportsCascadeDelete, supportsCaseInsensitiveLike, supportsCircularCascadeDeleteConstraints, supportsDistinctFromPredicate, supportsFetchClause, supportsIfExistsAfterAlterTable, supportsIfExistsAfterConstraintName, supportsIfExistsAfterTableName, supportsIfExistsAfterTypeName, supportsIfExistsBeforeConstraintName, supportsIfExistsBeforeTableName, supportsIfExistsBeforeTypeName, supportsInsertReturning, supportsInsertReturningGeneratedKeys, supportsLobValueChangePropagation, supportsLockTimeouts, supportsMaterializedLobAccess, supportsNamedParameters, supportsNonQueryWithCTE, supportsNullPrecedence, supportsOrdinalSelectItemReference, supportsOuterJoinForUpdate, supportsParametersInInsertSelect, supportsPredicateAsExpression, supportsRecursiveCTE, supportsResultSetPositionQueryMethodsOnForwardOnlyCursor, supportsSkipLocked, supportsStandardArrays, supportsStandardCurrentTimestampFunction, supportsSubqueryInSelect, supportsSubqueryOnMutatingTable, supportsSubselectAsInPredicateLHS, supportsTemporalLiteralOffset, supportsTemporaryTablePrimaryKey, supportsTemporaryTables, supportsTruncateWithCast, supportsTupleCounts, supportsUnionAll, supportsUnionInSubquery, supportsValuesList, supportsWait, toBooleanValueString, toQuotedIdentifier, toString, transformSelectString, translateDurationField, translateExtractField, trimPattern, useArrayForMultiValuedParameters, useFollowOnLocking, useInputStreamToInsertBlob, useMaterializedLobWhenCapacityExceeded

Methods inherited from class java.lang.Object

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

Constructor Detail

HANAColumnStoreDialect

public HANAColumnStoreDialect(DialectResolutionInfo info)

HANAColumnStoreDialect

public HANAColumnStoreDialect()

HANAColumnStoreDialect

public HANAColumnStoreDialect(DatabaseVersion version)

Method Detail

isUseUnicodeStringTypes

public boolean isUseUnicodeStringTypes()

Overrides:

isUseUnicodeStringTypes in class AbstractHANADialect

getMaxVarcharLength

public int getMaxVarcharLength()

Description copied from class: Dialect

The biggest size value that can be supplied as argument to a Types.VARCHAR-like type.

For longer column lengths, use some sort of text-like type for the column.

Overrides:

getMaxVarcharLength in class AbstractHANADialect

registerDefaultKeywords

protected void registerDefaultKeywords()

Description copied from class: Dialect

Register the reserved words of ANSI-standard SQL as keywords.

Overrides:

registerDefaultKeywords in class AbstractHANADialect

See Also:

AnsiSqlKeywords

initializeFunctionRegistry

public void initializeFunctionRegistry(FunctionContributions functionContributions)

Description copied from class: Dialect

Initialize the given registry with any dialect-specific functions.

Support for certain SQL functions is required, and if the database does not support a required function, then the dialect must define a way to emulate it.

These required functions include the functions defined by the JPA query language specification:

• avg(arg) - aggregate function
• count([distinct ]arg) - aggregate function
• max(arg) - aggregate function
• min(arg) - aggregate function
• sum(arg) - aggregate function

• coalesce(arg0, arg1, ...)
• nullif(arg0, arg1)

• lower(arg)
• upper(arg)
• length(arg)
• concat(arg0, arg1, ...)
• locate(pattern, string[, start])
• substring(string, start[, length])
• trim([[spec ][character ]from] string)

• abs(arg)
• mod(arg0, arg1)
• sqrt(arg)

• current date
• current time
• current timestamp

Along with an additional set of functions defined by ANSI SQL:

• any(arg) - aggregate function
• every(arg) - aggregate function

• var_samp(arg) - aggregate function
• var_pop(arg) - aggregate function
• stddev_samp(arg) - aggregate function
• stddev_pop(arg) - aggregate function

• cast(arg as Type)
• extract(field from arg)

• ln(arg)
• exp(arg)
• power(arg0, arg1)
• floor(arg)
• ceiling(arg)

• position(pattern in string)
• substring(string from start[ for length])
• overlay(string placing replacement from start[ for length])

And the following functions for working with java.time types:

• local date
• local time
• local datetime
• offset datetime
• instant

And a number of additional "standard" functions:

• left(string, length)
• right(string, length)
• replace(string, pattern, replacement)
• pad(string with length spec[ character])

• pi
• log10(arg)
• log(base, arg)
• sign(arg)
• sin(arg)
• cos(arg)
• tan(arg)
• asin(arg)
• acos(arg)
• atan(arg)
• atan2(arg0, arg1)
• round(arg0[, arg1])
• truncate(arg0[, arg1])
• sinh(arg)
• tanh(arg)
• cosh(arg)
• least(arg0, arg1, ...)
• greatest(arg0, arg1, ...)
• degrees(arg)
• radians(arg)

• format(datetime as pattern)
• collate(string as collation)
• str(arg) - synonym of cast(a as String)
• ifnull(arg0, arg1) - synonym of coalesce(a, b)

Finally, the following functions are defined as abbreviations for extract(), and desugared by the parser:

• second(arg) - synonym of extract(second from a)
• minute(arg) - synonym of extract(minute from a)
• hour(arg) - synonym of extract(hour from a)
• day(arg) - synonym of extract(day from a)
• month(arg) - synonym of extract(month from a)
• year(arg) - synonym of extract(year from a)

Note that according to this definition, the second() function returns a floating point value, contrary to the integer type returned by the native function with this name on many databases. Thus, we don't just naively map these HQL functions to the native SQL functions with the same names.

Overrides:

initializeFunctionRegistry in class AbstractHANADialect

getCreateTableString

public String getCreateTableString()

Description copied from class: Dialect

The command used to create a table, usually create table.

Overrides:

getCreateTableString in class Dialect

Returns:

The command used to create a table.

getFallbackSqmMutationStrategy

public SqmMultiTableMutationStrategy getFallbackSqmMutationStrategy(EntityMappingType entityDescriptor,
                                                                    RuntimeModelCreationContext runtimeModelCreationContext)

Description copied from class: Dialect

The SqmMultiTableMutationStrategy to use when not specified by QueryEngineOptions.getCustomSqmMultiTableMutationStrategy().

Overrides:

getFallbackSqmMutationStrategy in class Dialect

See Also:

SqmMultiTableMutationStrategyProvider.createMutationStrategy(org.hibernate.metamodel.mapping.EntityMappingType, org.hibernate.metamodel.mapping.internal.MappingModelCreationProcess)

getFallbackSqmInsertStrategy

public SqmMultiTableInsertStrategy getFallbackSqmInsertStrategy(EntityMappingType entityDescriptor,
                                                                RuntimeModelCreationContext runtimeModelCreationContext)

Description copied from class: Dialect

The SqmMultiTableInsertStrategy to use when not specified by QueryEngineOptions.getCustomSqmMultiTableInsertStrategy().

Overrides:

getFallbackSqmInsertStrategy in class Dialect

See Also:

SqmMultiTableMutationStrategyProvider.createInsertStrategy(org.hibernate.metamodel.mapping.EntityMappingType, org.hibernate.metamodel.mapping.internal.MappingModelCreationProcess)

getSupportedTemporaryTableKind

public TemporaryTableKind getSupportedTemporaryTableKind()

Description copied from class: Dialect

The kind of temporary tables that are supported on this database.

Overrides:

getSupportedTemporaryTableKind in class Dialect

getTemporaryTableCreateOptions

public String getTemporaryTableCreateOptions()

Description copied from class: Dialect

An arbitrary SQL fragment appended to the end of the statement to create a temporary table, specifying dialect-specific options, or null if there are no options to specify.

Overrides:

getTemporaryTableCreateOptions in class Dialect

getTemporaryTableCreateCommand

public String getTemporaryTableCreateCommand()

Description copied from class: Dialect

The command to create a temporary table.

Overrides:

getTemporaryTableCreateCommand in class Dialect

getTemporaryTableTruncateCommand

public String getTemporaryTableTruncateCommand()

Description copied from class: Dialect

The command to truncate a temporary table.

Overrides:

getTemporaryTableTruncateCommand in class Dialect

supportsAsciiStringTypes

protected boolean supportsAsciiStringTypes()

Specified by:

supportsAsciiStringTypes in class AbstractHANADialect

useUnicodeStringTypesDefault

protected Boolean useUnicodeStringTypesDefault()

Specified by:

useUnicodeStringTypesDefault in class AbstractHANADialect