Package org.hibernate.dialect
Class SybaseASE15Dialect
- java.lang.Object
-
- org.hibernate.dialect.Dialect
-
- org.hibernate.dialect.SybaseDialect
-
- org.hibernate.dialect.SybaseASE15Dialect
-
- All Implemented Interfaces:
ConversionContext
- Direct Known Subclasses:
SybaseASE157Dialect
public class SybaseASE15Dialect extends SybaseDialect
An SQL dialect targeting Sybase Adaptive Server Enterprise (ASE) 15 and higher. TODO : verify if this also works with 12/12.5
-
-
Field Summary
-
Fields inherited from class org.hibernate.dialect.Dialect
CLOSED_QUOTE, DEFAULT_BATCH_SIZE, LEGACY_LOB_MERGE_STRATEGY, NEW_LOCATOR_LOB_MERGE_STRATEGY, NO_BATCH, QUOTE, STANDARD_DEFAULT_BATCH_LOAD_SIZING_STRATEGY, STREAM_XFER_LOB_MERGE_STRATEGY
-
-
Constructor Summary
Constructors Constructor Description SybaseASE15Dialect()
Constructs a SybaseASE15Dialect
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description String
appendLockHint(LockOptions lockOptions, String tableName)
Some dialects support an alternative means to SELECT FOR UPDATE, whereby a "lock hint" is appends to the table name in the from clause.String
applyLocksToSql(String sql, LockOptions aliasedLockOptions, Map<String,String[]> keyColumnNames)
Modifies the given SQL by applying the appropriate updates for the specified lock modes and key columns.boolean
areStringComparisonsCaseInsensitive()
By default, Sybase string comparisons are case-insensitive.boolean
doesReadCommittedCauseWritersToBlockReaders()
For the underlying database, is READ_COMMITTED isolation implemented by forcing readers to wait for write locks to be released?boolean
doesRepeatableReadCauseReadersToBlockWriters()
For the underlying database, is REPEATABLE_READ isolation implemented by forcing writers to wait for read locks to be released?String
getAddColumnString()
The syntax used to add a column to a table (optional).String
getCrossJoinSeparator()
Returns the separator to use for defining cross joins when translating HQL queries.String
getCurrentTimestampSelectString()
Retrieve the command used to retrieve the current timestamp from the database.String
getCurrentTimestampSQLFunctionName()
The name of the database-specific SQL function for retrieving the current timestamp.MultiTableBulkIdStrategy
getDefaultMultiTableBulkIdStrategy()
String
getForUpdateString()
Get the string to append to SELECT statements to acquire locks for this dialect.IdentityColumnSupport
getIdentityColumnSupport()
Get the appropriateIdentityColumnSupport
int
getMaxAliasLength()
What is the maximum length Hibernate can use for generated aliases?ResultSet
getResultSet(CallableStatement ps)
Given a callable statement previously processed byDialect.registerResultSetOutParameter(java.sql.CallableStatement, int)
, extract theResultSet
from the OUT parameter.String
getSelectGUIDString()
Get the command used to select a GUID from the underlying database.protected SqlTypeDescriptor
getSqlTypeDescriptorOverride(int sqlCode)
Returns theSqlTypeDescriptor
that should be used to handle the given JDBC type code.boolean
isCurrentTimestampSelectStringCallable()
Should the value returned byDialect.getCurrentTimestampSelectString()
be treated as callable.boolean
qualifyIndexName()
Do we need to qualify index names with the schema name?int
registerResultSetOutParameter(CallableStatement statement, int col)
Registers a parameter (either OUT, or the new REF_CURSOR param type available in Java 8) capable of returningResultSet
*by position*.boolean
supportsCascadeDelete()
Does this dialect support cascaded delete on foreign key definitions?boolean
supportsCurrentTimestampSelection()
Does this dialect support a way to retrieve the database's current timestamp value?boolean
supportsEmptyInList()
Does this dialect support empty IN lists?boolean
supportsExistsInSelect()
Does the dialect support an exists statement in the select clause?boolean
supportsExpectedLobUsagePattern()
Actually Sybase does not support LOB locators at al.boolean
supportsLockTimeouts()
Informational metadata about whether this dialect is known to support specifying timeouts for requested lock acquisitions.boolean
supportsPartitionBy()
Does the underlying database support partition byboolean
supportsTupleDistinctCounts()
Does this dialect support `count(distinct a,b)`?boolean
supportsTuplesInSubqueries()
Does this dialect support tuples in subqueries? Ex: delete from Table1 where (col1, col2) in (select col1, col2 from Table2)boolean
supportsUnionAll()
Does this dialect support UNION ALL, which is generally a faster variant of UNION?-
Methods inherited from class org.hibernate.dialect.SybaseDialect
getCurrentSchemaCommand, getInExpressionCountLimit, getNullColumnString
-
Methods inherited from class org.hibernate.dialect.Dialect
addSqlHintOrComment, appendLockHint, augmentRecognizedTableTypes, bindLimitParametersFirst, bindLimitParametersInReverseOrder, buildIdentifierHelper, buildSQLExceptionConversionDelegate, buildSQLExceptionConverter, canCreateCatalog, canCreateSchema, cast, cast, cast, closeQuote, contributeTypes, convertToFirstRowValue, createCaseFragment, createOuterJoinFragment, defaultScrollMode, dropConstraints, escapeComment, escapeLiteral, forceLimitUsage, forceLobAsLastValue, forUpdateOfColumns, getAddColumnSuffixString, getAddForeignKeyConstraintString, getAddForeignKeyConstraintString, getAddPrimaryKeyConstraintString, getAddUniqueConstraintString, getAlterTableString, getAuxiliaryDatabaseObjectExporter, getCallableStatementSupport, getCascadeConstraintsString, getCaseInsensitiveLike, getCastTypeName, getColumnAliasExtractor, getColumnComment, getCreateCatalogCommand, getCreateMultisetTableString, getCreateSchemaCommand, getCreateSequenceString, getCreateSequenceString, getCreateSequenceStrings, getCreateSequenceStrings, getCreateTableString, getDefaultBatchLoadSizingStrategy, getDefaultProperties, getDialect, getDialect, getDropCatalogCommand, getDropForeignKeyString, getDropSchemaCommand, getDropSequenceString, getDropSequenceStrings, getDropTableString, getForeignKeyExporter, getForUpdateNowaitString, getForUpdateNowaitString, getForUpdateSkipLockedString, getForUpdateSkipLockedString, getForUpdateString, getForUpdateString, getForUpdateString, getForUpdateString, getFunctions, getHibernateTypeName, getHibernateTypeName, getIndexExporter, getKeywords, getLimitHandler, getLimitString, getLimitString, getLobMergeStrategy, getLockingStrategy, getLowercaseFunction, getNameQualifierSupport, getNativeIdentifierGeneratorClass, getNativeIdentifierGeneratorStrategy, getNoColumnsInsertString, getNotExpression, getQueryHintString, getQueryHintString, getQuerySequencesString, getReadLockString, getReadLockString, getResultSet, getResultSet, getSchemaNameResolver, getSelectClauseNullString, getSelectSequenceNextValString, getSequenceExporter, getSequenceInformationExtractor, getSequenceNextValString, getTableComment, getTableExporter, getTableTypeString, getTypeName, getTypeName, getUniqueDelegate, getUniqueKeyExporter, getViolatedConstraintNameExtracter, getWriteLockString, getWriteLockString, hasAlterTable, hasSelfReferentialForeignKeyBug, inlineLiteral, isJdbcLogWarningsEnabledByDefault, isLegacyLimitHandlerBehaviorEnabled, isLockTimeoutParameterized, isTypeNameRegistered, openQuote, prependComment, quote, registerColumnType, registerColumnType, registerFunction, registerHibernateType, registerHibernateType, registerKeyword, registerResultSetOutParameter, remapSqlTypeDescriptor, renderOrderByElement, replaceResultVariableInOrderByClauseWithPosition, requiresCastingOfParametersInSelectClause, requiresParensForTupleDistinctCounts, supportsBindAsCallableArgument, supportsCaseInsensitiveLike, supportsCircularCascadeDeleteConstraints, supportsColumnCheck, supportsCommentOn, supportsIfExistsAfterAlterTable, supportsIfExistsAfterConstraintName, supportsIfExistsAfterTableName, supportsIfExistsBeforeConstraintName, supportsIfExistsBeforeTableName, supportsLimit, supportsLimitOffset, supportsLobValueChangePropogation, supportsNamedParameters, supportsNationalizedTypes, supportsNonQueryWithCTE, supportsNotNullUnique, supportsNoWait, supportsOuterJoinForUpdate, supportsParametersInInsertSelect, supportsPooledSequences, supportsResultSetPositionQueryMethodsOnForwardOnlyCursor, supportsRowValueConstructorSyntax, supportsRowValueConstructorSyntaxInInList, supportsSequences, supportsSkipLocked, supportsSubqueryOnMutatingTable, supportsSubselectAsInPredicateLHS, supportsTableCheck, supportsTupleCounts, supportsUnboundedLobLocatorMaterialization, supportsUnique, supportsUniqueConstraintInCreateAlterTable, supportsValuesList, supportsVariableLimit, toBooleanValueString, toString, transformSelectString, useFollowOnLocking, useFollowOnLocking, useInputStreamToInsertBlob, useMaxForLimit
-
-
-
-
Method Detail
-
supportsCascadeDelete
public boolean supportsCascadeDelete()
Description copied from class:Dialect
Does this dialect support cascaded delete on foreign key definitions?- Overrides:
supportsCascadeDelete
in classDialect
- Returns:
true
indicates that the dialect does support cascaded delete on foreign keys.
-
getMaxAliasLength
public int getMaxAliasLength()
Description copied from class:Dialect
What is the maximum length Hibernate can use for generated aliases? The maximum here should account for the fact that Hibernate often needs to append "uniqueing" information to the end of generated aliases. That "uniqueing" information will be added to the end of a identifier generated to the length specified here; so be sure to leave some room (generally speaking 5 positions will suffice).- Overrides:
getMaxAliasLength
in classDialect
- Returns:
- The maximum length.
-
areStringComparisonsCaseInsensitive
public boolean areStringComparisonsCaseInsensitive()
By default, Sybase string comparisons are case-insensitive. If the DB is configured to be case-sensitive, then this return value will be incorrect. Are string comparisons implicitly case insensitive. In other words, does [where 'XYZ' = 'xyz'] resolve to true?- Overrides:
areStringComparisonsCaseInsensitive
in classDialect
- Returns:
- True if comparisons are case insensitive.
-
getCurrentTimestampSQLFunctionName
public String getCurrentTimestampSQLFunctionName()
Description copied from class:Dialect
The name of the database-specific SQL function for retrieving the current timestamp.- Overrides:
getCurrentTimestampSQLFunctionName
in classDialect
- Returns:
- The function name.
-
supportsExpectedLobUsagePattern
public boolean supportsExpectedLobUsagePattern()
Actually Sybase does not support LOB locators at al.- Overrides:
supportsExpectedLobUsagePattern
in classDialect
- Returns:
- false. True if normal LOB usage patterns can be used with this driver; false if driver-specific hookiness needs to be applied.
-
getCrossJoinSeparator
public String getCrossJoinSeparator()
Description copied from class:Dialect
Returns the separator to use for defining cross joins when translating HQL queries. Typically this will be either [ cross join ] or [, ] Note that the spaces are important!- Overrides:
getCrossJoinSeparator
in classDialect
- Returns:
- The cross join separator
-
getSqlTypeDescriptorOverride
protected SqlTypeDescriptor getSqlTypeDescriptorOverride(int sqlCode)
Description copied from class:Dialect
Returns theSqlTypeDescriptor
that should be used to handle the given JDBC type code. Returnsnull
if there is no override.- Overrides:
getSqlTypeDescriptorOverride
in classSybaseDialect
- Parameters:
sqlCode
- ATypes
constant indicating the SQL column type- Returns:
- The
SqlTypeDescriptor
to use as an override, ornull
if there is no override.
-
supportsLockTimeouts
public boolean supportsLockTimeouts()
Description copied from class:Dialect
Informational metadata about whether this dialect is known to support specifying timeouts for requested lock acquisitions.- Overrides:
supportsLockTimeouts
in classDialect
- Returns:
- True is this dialect supports specifying lock timeouts.
-
supportsPartitionBy
public boolean supportsPartitionBy()
Description copied from class:Dialect
Does the underlying database support partition by- Returns:
- boolean
-
getAddColumnString
public String getAddColumnString()
Description copied from class:Dialect
The syntax used to add a column to a table (optional).- Overrides:
getAddColumnString
in classDialect
- Returns:
- The "add column" fragment.
-
qualifyIndexName
public boolean qualifyIndexName()
Description copied from class:Dialect
Do we need to qualify index names with the schema name?- Overrides:
qualifyIndexName
in classDialect
- Returns:
- boolean
-
getForUpdateString
public String getForUpdateString()
Description copied from class:Dialect
Get the string to append to SELECT statements to acquire locks for this dialect.- Overrides:
getForUpdateString
in classDialect
- Returns:
- The appropriate FOR UPDATE clause string.
-
appendLockHint
public String appendLockHint(LockOptions lockOptions, String tableName)
Description copied from class:Dialect
Some dialects support an alternative means to SELECT FOR UPDATE, whereby a "lock hint" is appends to the table name in the from clause. contributed by Helge Schulz- Overrides:
appendLockHint
in classDialect
- Parameters:
lockOptions
- The lock options to applytableName
- The name of the table to which to apply the lock hint.- Returns:
- The table with any required lock hints.
-
applyLocksToSql
public String applyLocksToSql(String sql, LockOptions aliasedLockOptions, Map<String,String[]> keyColumnNames)
Description copied from class:Dialect
Modifies the given SQL by applying the appropriate updates for the specified lock modes and key columns. The behavior here is that of an ANSI SQL SELECT FOR UPDATE. This method is really intended to allow dialects which do not support SELECT FOR UPDATE to achieve this in their own fashion.- Overrides:
applyLocksToSql
in classDialect
- Parameters:
sql
- the SQL string to modifyaliasedLockOptions
- lock options indexed by aliased table names.keyColumnNames
- a map of key columns indexed by aliased table names.- Returns:
- the modified SQL string.
-
registerResultSetOutParameter
public int registerResultSetOutParameter(CallableStatement statement, int col) throws SQLException
Description copied from class:Dialect
Registers a parameter (either OUT, or the new REF_CURSOR param type available in Java 8) capable of returningResultSet
*by position*. Pre-Java 8, registering such ResultSet-returning parameters varied greatly across database and drivers; hence its inclusion as part of the Dialect contract.- Overrides:
registerResultSetOutParameter
in classDialect
- Parameters:
statement
- The callable statement.col
- The bind position at which to register the output param.- Returns:
- The number of (contiguous) bind positions used.
- Throws:
SQLException
- Indicates problems registering the param.
-
getResultSet
public ResultSet getResultSet(CallableStatement ps) throws SQLException
Description copied from class:Dialect
Given a callable statement previously processed byDialect.registerResultSetOutParameter(java.sql.CallableStatement, int)
, extract theResultSet
from the OUT parameter.- Overrides:
getResultSet
in classDialect
- Parameters:
ps
- The callable statement.- Returns:
- The extracted result set.
- Throws:
SQLException
- Indicates problems extracting the result set.
-
supportsCurrentTimestampSelection
public boolean supportsCurrentTimestampSelection()
Description copied from class:Dialect
Does this dialect support a way to retrieve the database's current timestamp value?- Overrides:
supportsCurrentTimestampSelection
in classDialect
- Returns:
- True if the current timestamp can be retrieved; false otherwise.
-
isCurrentTimestampSelectStringCallable
public boolean isCurrentTimestampSelectStringCallable()
Description copied from class:Dialect
Should the value returned byDialect.getCurrentTimestampSelectString()
be treated as callable. Typically this indicates that JDBC escape syntax is being used...- Overrides:
isCurrentTimestampSelectStringCallable
in classDialect
- Returns:
- True if the
Dialect.getCurrentTimestampSelectString()
return is callable; false otherwise.
-
getCurrentTimestampSelectString
public String getCurrentTimestampSelectString()
Description copied from class:Dialect
Retrieve the command used to retrieve the current timestamp from the database.- Overrides:
getCurrentTimestampSelectString
in classDialect
- Returns:
- The command.
-
getDefaultMultiTableBulkIdStrategy
public MultiTableBulkIdStrategy getDefaultMultiTableBulkIdStrategy()
- Overrides:
getDefaultMultiTableBulkIdStrategy
in classDialect
-
getSelectGUIDString
public String getSelectGUIDString()
Description copied from class:Dialect
Get the command used to select a GUID from the underlying database. Optional operation.- Overrides:
getSelectGUIDString
in classDialect
- Returns:
- The appropriate command.
-
supportsEmptyInList
public boolean supportsEmptyInList()
Description copied from class:Dialect
Does this dialect support empty IN lists? For example, is [where XYZ in ()] a supported construct?- Overrides:
supportsEmptyInList
in classDialect
- Returns:
- True if empty in lists are supported; false otherwise.
-
supportsUnionAll
public boolean supportsUnionAll()
Description copied from class:Dialect
Does this dialect support UNION ALL, which is generally a faster variant of UNION?- Overrides:
supportsUnionAll
in classDialect
- Returns:
- True if UNION ALL is supported; false otherwise.
-
supportsExistsInSelect
public boolean supportsExistsInSelect()
Description copied from class:Dialect
Does the dialect support an exists statement in the select clause?- Overrides:
supportsExistsInSelect
in classDialect
- Returns:
- True if exists checks are allowed in the select clause; false otherwise.
-
doesReadCommittedCauseWritersToBlockReaders
public boolean doesReadCommittedCauseWritersToBlockReaders()
Description copied from class:Dialect
For the underlying database, is READ_COMMITTED isolation implemented by forcing readers to wait for write locks to be released?- Overrides:
doesReadCommittedCauseWritersToBlockReaders
in classDialect
- Returns:
- True if writers block readers to achieve READ_COMMITTED; false otherwise.
-
doesRepeatableReadCauseReadersToBlockWriters
public boolean doesRepeatableReadCauseReadersToBlockWriters()
Description copied from class:Dialect
For the underlying database, is REPEATABLE_READ isolation implemented by forcing writers to wait for read locks to be released?- Overrides:
doesRepeatableReadCauseReadersToBlockWriters
in classDialect
- Returns:
- True if readers block writers to achieve REPEATABLE_READ; false otherwise.
-
supportsTupleDistinctCounts
public boolean supportsTupleDistinctCounts()
Description copied from class:Dialect
Does this dialect support `count(distinct a,b)`?- Overrides:
supportsTupleDistinctCounts
in classDialect
- Returns:
- True if the database supports counting distinct tuples; false otherwise.
-
supportsTuplesInSubqueries
public boolean supportsTuplesInSubqueries()
Description copied from class:Dialect
Does this dialect support tuples in subqueries? Ex: delete from Table1 where (col1, col2) in (select col1, col2 from Table2)- Overrides:
supportsTuplesInSubqueries
in classDialect
- Returns:
- boolean
-
getIdentityColumnSupport
public IdentityColumnSupport getIdentityColumnSupport()
Description copied from class:Dialect
Get the appropriateIdentityColumnSupport
- Overrides:
getIdentityColumnSupport
in classDialect
- Returns:
- the IdentityColumnSupport
-
-