AbstractHANADialect (Hibernate JavaDocs)

java.lang.Object
- org.hibernate.dialect.Dialect
- - org.hibernate.dialect.AbstractHANADialect

All Implemented Interfaces:

ConversionContext

Direct Known Subclasses:

HANAColumnStoreDialect, HANARowStoreDialect
```
public abstract class AbstractHANADialect
extends Dialect
```
An abstract base class for HANA dialects.
SAP HANA Reference
NOTE: This dialect is currently configured to create foreign keys with on update cascade.

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, STREAM_XFER_LOB_MERGE_STRATEGY

Constructor Summary

Constructors
Constructor and Description

AbstractHANADialect()

Constructors
Constructor and Description
`AbstractHANADialect()`

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`bindLimitParametersInReverseOrder()` ANSI SQL defines the LIMIT clause to be in the form LIMIT offset, limit.
`SQLExceptionConversionDelegate`	`buildSQLExceptionConversionDelegate()` Build an instance of a `SQLExceptionConversionDelegate` for interpreting dialect-specific error or SQLState codes.
`ScrollMode`	`defaultScrollMode()` Certain dialects support a subset of ScrollModes.
`boolean`	`dropConstraints()` Do we need to drop constraints before dropping tables in this dialect?
`boolean`	`forUpdateOfColumns()` Is `FOR UPDATE OF` syntax supported?
`String`	`getAddColumnString()` The syntax used to add a column to a table (optional).
`String`	`getAddColumnSuffixString()` The syntax for the suffix used to add a column to a table (optional).
`String`	`getAddForeignKeyConstraintString(String constraintName, String[] foreignKey, String referencedTable, String[] primaryKey, boolean referencesPrimaryKey)` The default behaviour for 'on update restrict' on HANA is currently to not allow any updates to any column of a row if the row has a foreign key.
`String`	`getCascadeConstraintsString()` Completely optional cascading drop clause
`String`	`getCreateSequenceString(String sequenceName)` Typically dialects which support sequences can create a sequence with a single command.
`String`	`getCreateTemporaryTableString()` Command used to create a temporary table.
`String`	`getCurrentTimestampSelectString()` Retrieve the command used to retrieve the current timestamp from the database.
`String`	`getDropSequenceString(String sequenceName)` Typically dialects which support sequences can drop a sequence with a single command.
`String`	`getForUpdateString(String aliases)` Get the `FOR UPDATE OF column_list` fragment appropriate for this dialect given the aliases of the columns to be write locked.
`String`	`getForUpdateString(String aliases, LockOptions lockOptions)` Get the `FOR UPDATE OF column_list` fragment appropriate for this dialect given the aliases of the columns to be write locked.
`String`	`getLimitString(String sql, boolean hasOffset)` Apply s limit clause to the query.
`int`	`getMaxAliasLength()` 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.
`String`	`getNotExpression(String expression)` Negate an expression
`String`	`getQuerySequencesString()` Get the select command used retrieve the names of all sequences.
`String`	`getSelectSequenceNextValString(String sequenceName)` Generate the select expression fragment that will retrieve the next value of a sequence as part of another (typically DML) statement.
`String`	`getSequenceNextValString(String sequenceName)` Generate the appropriate select statement to to retrieve the next value of a sequence.
`protected SqlTypeDescriptor`	`getSqlTypeDescriptorOverride(int sqlCode)` Returns the `SqlTypeDescriptor` that should be used to handle the given JDBC type code.
`boolean`	`isCurrentTimestampSelectStringCallable()` Should the value returned by `Dialect.getCurrentTimestampSelectString()` be treated as callable.
`protected void`	`registerHanaKeywords()`
`boolean`	`supportsCircularCascadeDeleteConstraints()` Does this dialect support definition of cascade delete constraints which can cause circular chains?
`boolean`	`supportsColumnCheck()` HANA currently does not support check constraints.
`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? For example, is [where XYZ in ()] a supported construct?
`boolean`	`supportsExistsInSelect()` Does the dialect support an exists statement in the select clause?
`boolean`	`supportsExpectedLobUsagePattern()` Expected LOB usage pattern is such that I can perform an insert via prepared statement with a parameter binding for a LOB value without crazy casting to JDBC driver implementation-specific classes...
`boolean`	`supportsLimit()` Does this dialect support some form of limiting query results via a SQL clause?
`boolean`	`supportsPooledSequences()` Does this dialect support "pooled" sequences.
`boolean`	`supportsRowValueConstructorSyntax()` Is this dialect known to support what ANSI-SQL terms "row value constructor" syntax; sometimes called tuple syntax.
`boolean`	`supportsRowValueConstructorSyntaxInInList()` If the dialect supports `row values`, does it offer such support in IN lists as well? For example, "...
`boolean`	`supportsSequences()` Does this dialect support sequences?
`boolean`	`supportsTableCheck()` Does this dialect support table-level check constraints?
`boolean`	`supportsTemporaryTables()` Does this dialect support temporary tables?
`boolean`	`supportsTupleDistinctCounts()` Does this dialect support `count(distinct a,b)`?
`boolean`	`supportsUnionAll()` Does this dialect support UNION ALL, which is generally a faster variant of UNION?

Methods inherited from class org.hibernate.dialect.Dialect
appendIdentitySelectToInsert, appendLockHint, appendLockHint, applyLocksToSql, areStringComparisonsCaseInsensitive, bindLimitParametersFirst, buildLimitHandler, buildSQLExceptionConverter, cast, cast, cast, closeQuote, contributeTypes, convertToFirstRowValue, createCaseFragment, createOuterJoinFragment, doesReadCommittedCauseWritersToBlockReaders, doesRepeatableReadCauseReadersToBlockWriters, dropTemporaryTableAfterUse, forceLimitUsage, forceLobAsLastValue, generateTemporaryTableName, getAddPrimaryKeyConstraintString, getAddUniqueConstraintString, getCallableStatementSupport, getCaseInsensitiveLike, getCastTypeName, getColumnAliasExtractor, getColumnComment, getCreateMultisetTableString, getCreateSchemaCommand, getCreateSequenceString, getCreateSequenceStrings, getCreateSequenceStrings, getCreateTableString, getCreateTemporaryTablePostfix, getCrossJoinSeparator, getCurrentTimestampSQLFunctionName, getDefaultProperties, getDialect, getDialect, getDropForeignKeyString, getDropSchemaCommand, getDropSequenceStrings, getDropTableString, getDropTemporaryTableString, getForUpdateNowaitString, getForUpdateNowaitString, getForUpdateSkipLockedString, getForUpdateSkipLockedString, getForUpdateString, getForUpdateString, getForUpdateString, getFunctions, getHibernateTypeName, getHibernateTypeName, getIdentityColumnString, getIdentityColumnString, getIdentityInsertString, getIdentitySelectString, getIdentitySelectString, getInExpressionCountLimit, getKeywords, getLimitString, getLobMergeStrategy, getLockingStrategy, getLowercaseFunction, getNativeIdentifierGeneratorClass, getNoColumnsInsertString, getNullColumnString, getQueryHintString, getReadLockString, getResultSet, getResultSet, getResultSet, getSelectClauseNullString, getSelectGUIDString, getTableComment, getTableTypeString, getTypeName, getTypeName, getUniqueDelegate, getViolatedConstraintNameExtracter, getWriteLockString, hasAlterTable, hasDataTypeInIdentityColumn, hasSelfReferentialForeignKeyBug, isLockTimeoutParameterized, openQuote, performTemporaryTableDDLInIsolation, qualifyIndexName, quote, registerColumnType, registerColumnType, registerFunction, registerHibernateType, registerHibernateType, registerKeyword, registerResultSetOutParameter, registerResultSetOutParameter, remapSqlTypeDescriptor, renderOrderByElement, replaceResultVariableInOrderByClauseWithPosition, requiresCastingOfParametersInSelectClause, requiresParensForTupleDistinctCounts, supportsBindAsCallableArgument, supportsCascadeDelete, supportsCaseInsensitiveLike, supportsCommentOn, supportsIdentityColumns, supportsIfExistsAfterConstraintName, supportsIfExistsAfterTableName, supportsIfExistsBeforeConstraintName, supportsIfExistsBeforeTableName, supportsInsertSelectIdentity, supportsLimitOffset, supportsLobValueChangePropogation, supportsLockTimeouts, supportsNotNullUnique, supportsOuterJoinForUpdate, supportsParametersInInsertSelect, supportsResultSetPositionQueryMethodsOnForwardOnlyCursor, supportsSubqueryOnMutatingTable, supportsSubselectAsInPredicateLHS, supportsTupleCounts, supportsTuplesInSubqueries, supportsUnboundedLobLocatorMaterialization, supportsUnique, supportsUniqueConstraintInCreateAlterTable, supportsVariableLimit, toBooleanValueString, toString, transformSelectString, useFollowOnLocking, useInputStreamToInsertBlob, useMaxForLimit

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - AbstractHANADialect
```
public AbstractHANADialect()
```
- Method Detail
  - bindLimitParametersInReverseOrder
```
public boolean bindLimitParametersInReverseOrder()
```
    Description copied from class: Dialect
    
    ANSI SQL defines the LIMIT clause to be in the form LIMIT offset, limit. Does this dialect require us to bind the parameters in reverse order?
    
    Overrides:
    
    bindLimitParametersInReverseOrder in class Dialect
    
    Returns:
    true if the correct order is limit, offset
  - buildSQLExceptionConversionDelegate
```
public SQLExceptionConversionDelegate buildSQLExceptionConversionDelegate()
```
    Description copied from class: Dialect
    Build an instance of a SQLExceptionConversionDelegate for interpreting dialect-specific error or SQLState codes.
    When Dialect.buildSQLExceptionConverter() returns null, the default SQLExceptionConverter is used to interpret SQLState and error codes. If this method is overridden to return a non-null value, the default SQLExceptionConverter will use the returned SQLExceptionConversionDelegate in addition to the following standard delegates:
    1. a "static" delegate based on the JDBC 4 defined SQLException hierarchy;
    2. a delegate that interprets SQLState codes for either X/Open or SQL-2003 codes, depending on java.sql.DatabaseMetaData#getSQLStateType
    It is strongly recommended that specific Dialect implementations override this method, since interpretation of a SQL error is much more accurate when based on the a vendor-specific ErrorCode rather than the SQLState.
    Specific Dialects may override to return whatever is most appropriate for that vendor.
    Overrides:
    
    buildSQLExceptionConversionDelegate in class Dialect
    
    Returns:
    The SQLExceptionConversionDelegate for this dialect
  - forUpdateOfColumns
```
public boolean forUpdateOfColumns()
```
    Description copied from class: Dialect
    
    Is FOR UPDATE OF syntax supported?
    
    Overrides:
    
    forUpdateOfColumns in class Dialect
    
    Returns:
    True if the database supports FOR UPDATE OF syntax; false otherwise.
  - getAddColumnString
```
public String getAddColumnString()
```
    Description copied from class: Dialect
    
    The syntax used to add a column to a table (optional).
    
    Overrides:
    
    getAddColumnString in class Dialect
    
    Returns:
    The "add column" fragment.
  - getAddColumnSuffixString
```
public String getAddColumnSuffixString()
```
    Description copied from class: Dialect
    
    The syntax for the suffix used to add a column to a table (optional).
    
    Overrides:
    
    getAddColumnSuffixString in class Dialect
    
    Returns:
    The suffix "add column" fragment.
  - getCascadeConstraintsString
```
public String getCascadeConstraintsString()
```
    Description copied from class: Dialect
    
    Completely optional cascading drop clause
    
    Overrides:
    
    getCascadeConstraintsString in class Dialect
    
    Returns:
    String
  - getCreateSequenceString
```
public String getCreateSequenceString(String sequenceName)
```
    Description copied from class: Dialect
    
    Typically dialects which support sequences can create a sequence with a single command. This is convenience form of Dialect.getCreateSequenceStrings(java.lang.String) to help facilitate that.
    Dialects which support sequences and can create a sequence in a single command need *only* override this method. Dialects which support sequences but require multiple commands to create a sequence should instead override Dialect.getCreateSequenceStrings(java.lang.String).
    
    Overrides:
    
    getCreateSequenceString in class Dialect
    
    Parameters:
    sequenceName - The name of the sequence
    
    Returns:
    The sequence creation command
  - getCreateTemporaryTableString
```
public String getCreateTemporaryTableString()
```
    Description copied from class: Dialect
    
    Command used to create a temporary table.
    
    Overrides:
    
    getCreateTemporaryTableString in class Dialect
    
    Returns:
    The command used to create a temporary table.
  - getCurrentTimestampSelectString
```
public String getCurrentTimestampSelectString()
```
    Description copied from class: Dialect
    
    Retrieve the command used to retrieve the current timestamp from the database.
    
    Overrides:
    
    getCurrentTimestampSelectString in class Dialect
    
    Returns:
    The command.
  - getDropSequenceString
```
public String getDropSequenceString(String sequenceName)
```
    Description copied from class: Dialect
    
    Typically dialects which support sequences can drop a sequence with a single command. This is convenience form of Dialect.getDropSequenceStrings(java.lang.String) to help facilitate that.
    Dialects which support sequences and can drop a sequence in a single command need *only* override this method. Dialects which support sequences but require multiple commands to drop a sequence should instead override Dialect.getDropSequenceStrings(java.lang.String).
    
    Overrides:
    
    getDropSequenceString in class Dialect
    
    Parameters:
    sequenceName - The name of the sequence
    
    Returns:
    The sequence drop commands
  - getForUpdateString
```
public String getForUpdateString(String aliases)
```
    Description copied from class: Dialect
    
    Get the FOR UPDATE OF column_list fragment appropriate for this dialect given the aliases of the columns to be write locked.
    
    Overrides:
    
    getForUpdateString in class Dialect
    
    Parameters:
    aliases - The columns to be write locked.
    
    Returns:
    The appropriate FOR UPDATE OF column_list clause string.
  - getForUpdateString
```
public String getForUpdateString(String aliases,
                        LockOptions lockOptions)
```
    Description copied from class: Dialect
    
    Get the FOR UPDATE OF column_list fragment appropriate for this dialect given the aliases of the columns to be write locked.
    
    Overrides:
    
    getForUpdateString in class Dialect
    
    Parameters:
    aliases - The columns to be write locked.
    lockOptions - the lock options to apply
    
    Returns:
    The appropriate FOR UPDATE OF column_list clause string.
  - getLimitString
```
public String getLimitString(String sql,
                    boolean hasOffset)
```
    Description copied from class: Dialect
    
    Apply s limit clause to the query.
    Typically dialects utilize variable limit clauses when they support limits. Thus, when building the select command we do not actually need to know the limit or the offest since we will just be using placeholders.
    Here we do still pass along whether or not an offset was specified so that dialects not supporting offsets can generate proper exceptions. In general, dialects will override one or the other of this method and Dialect.getLimitString(String, int, int).
    
    Overrides:
    
    getLimitString in class Dialect
    
    Parameters:
    sql - The query to which to apply the limit.
    hasOffset - Is the query requesting an offset?
    
    Returns:
    the modified SQL
  - getNotExpression
```
public String getNotExpression(String expression)
```
    Description copied from class: Dialect
    
    Negate an expression
    
    Overrides:
    
    getNotExpression in class Dialect
    
    Parameters:
    expression - The expression to negate
    
    Returns:
    The negated expression
  - getQuerySequencesString
```
public String getQuerySequencesString()
```
    Description copied from class: Dialect
    
    Get the select command used retrieve the names of all sequences.
    
    Overrides:
    
    getQuerySequencesString in class Dialect
    
    Returns:
    The select command; or null if sequences are not supported.
    See Also:
    SchemaUpdate
  - getSelectSequenceNextValString
```
public String getSelectSequenceNextValString(String sequenceName)
```
    Description copied from class: Dialect
    
    Generate the select expression fragment that will retrieve the next value of a sequence as part of another (typically DML) statement.
    This differs from Dialect.getSequenceNextValString(String) in that this should return an expression usable within another statement.
    
    Overrides:
    
    getSelectSequenceNextValString in class Dialect
    
    Parameters:
    sequenceName - the name of the sequence
    
    Returns:
    The "nextval" fragment.
  - getSequenceNextValString
```
public String getSequenceNextValString(String sequenceName)
```
    Description copied from class: Dialect
    
    Generate the appropriate select statement to to retrieve the next value of a sequence.
    This should be a "stand alone" select statement.
    
    Overrides:
    
    getSequenceNextValString in class Dialect
    
    Parameters:
    sequenceName - the name of the sequence
    
    Returns:
    String The "nextval" select string.
  - getSqlTypeDescriptorOverride
```
protected SqlTypeDescriptor getSqlTypeDescriptorOverride(int sqlCode)
```
    Description copied from class: Dialect
    
    Returns the SqlTypeDescriptor that should be used to handle the given JDBC type code. Returns null if there is no override.
    
    Overrides:
    
    getSqlTypeDescriptorOverride in class Dialect
    
    Parameters:
    sqlCode - A Types constant indicating the SQL column type
    
    Returns:
    The SqlTypeDescriptor to use as an override, or null if there is no override.
  - isCurrentTimestampSelectStringCallable
```
public boolean isCurrentTimestampSelectStringCallable()
```
    Description copied from class: Dialect
    
    Should the value returned by Dialect.getCurrentTimestampSelectString() be treated as callable. Typically this indicates that JDBC escape syntax is being used...
    
    Overrides:
    
    isCurrentTimestampSelectStringCallable in class Dialect
    
    Returns:
    True if the Dialect.getCurrentTimestampSelectString() return is callable; false otherwise.
  - registerHanaKeywords
```
protected void registerHanaKeywords()
```
  - supportsCircularCascadeDeleteConstraints
```
public boolean supportsCircularCascadeDeleteConstraints()
```
    Description copied from class: Dialect
    
    Does this dialect support definition of cascade delete constraints which can cause circular chains?
    
    Overrides:
    
    supportsCircularCascadeDeleteConstraints in class Dialect
    
    Returns:
    True if circular cascade delete constraints are supported; false otherwise.
  - defaultScrollMode
```
public ScrollMode defaultScrollMode()
```
    Description copied from class: Dialect
    
    Certain dialects support a subset of ScrollModes. Provide a default to be used by Criteria and Query.
    
    Overrides:
    
    defaultScrollMode in class Dialect
    
    Returns:
    ScrollMode
  - supportsColumnCheck
```
public boolean supportsColumnCheck()
```
    HANA currently does not support check constraints.
    
    Overrides:
    
    supportsColumnCheck in class Dialect
    
    Returns:
    True if column-level CHECK constraints are supported; false otherwise.
  - 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 class Dialect
    
    Returns:
    True if the current timestamp can be retrieved; false otherwise.
  - 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 class Dialect
    
    Returns:
    True if empty in lists are 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 class Dialect
    
    Returns:
    True if exists checks are allowed in the select clause; false otherwise.
  - supportsExpectedLobUsagePattern
```
public boolean supportsExpectedLobUsagePattern()
```
    Description copied from class: Dialect
    
    Expected LOB usage pattern is such that I can perform an insert via prepared statement with a parameter binding for a LOB value without crazy casting to JDBC driver implementation-specific classes...
    Part of the trickiness here is the fact that this is largely driver dependent. For example, Oracle (which is notoriously bad with LOB support in their drivers historically) actually does a pretty good job with LOB support as of the 10.2.x versions of their drivers...
    
    Overrides:
    
    supportsExpectedLobUsagePattern in class Dialect
    
    Returns:
    True if normal LOB usage patterns can be used with this driver; false if driver-specific hookiness needs to be applied.
  - supportsLimit
```
public boolean supportsLimit()
```
    Description copied from class: Dialect
    
    Does this dialect support some form of limiting query results via a SQL clause?
    
    Overrides:
    
    supportsLimit in class Dialect
    
    Returns:
    True if this dialect supports some form of LIMIT.
  - supportsPooledSequences
```
public boolean supportsPooledSequences()
```
    Description copied from class: Dialect
    
    Does this dialect support "pooled" sequences. Not aware of a better name for this. Essentially can we specify the initial and increment values?
    
    Overrides:
    
    supportsPooledSequences in class Dialect
    
    Returns:
    True if such "pooled" sequences are supported; false otherwise.
    See Also:
    Dialect.getCreateSequenceStrings(String, int, int), Dialect.getCreateSequenceString(String, int, int)
  - supportsSequences
```
public boolean supportsSequences()
```
    Description copied from class: Dialect
    
    Does this dialect support sequences?
    
    Overrides:
    
    supportsSequences in class Dialect
    
    Returns:
    True if sequences supported; false otherwise.
  - supportsTableCheck
```
public boolean supportsTableCheck()
```
    Description copied from class: Dialect
    
    Does this dialect support table-level check constraints?
    
    Overrides:
    
    supportsTableCheck in class Dialect
    
    Returns:
    True if table-level CHECK constraints are supported; false otherwise.
  - supportsTemporaryTables
```
public boolean supportsTemporaryTables()
```
    Description copied from class: Dialect
    
    Does this dialect support temporary tables?
    
    Overrides:
    
    supportsTemporaryTables in class Dialect
    
    Returns:
    True if temp tables are supported; false otherwise.
  - supportsTupleDistinctCounts
```
public boolean supportsTupleDistinctCounts()
```
    Description copied from class: Dialect
    
    Does this dialect support `count(distinct a,b)`?
    
    Overrides:
    
    supportsTupleDistinctCounts in class Dialect
    
    Returns:
    True if the database supports counting distinct tuples; 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 class Dialect
    
    Returns:
    True if UNION ALL is supported; false otherwise.
  - dropConstraints
```
public boolean dropConstraints()
```
    Description copied from class: Dialect
    
    Do we need to drop constraints before dropping tables in this dialect?
    
    Overrides:
    
    dropConstraints in class Dialect
    
    Returns:
    True if constraints must be dropped prior to dropping the table; false otherwise.
  - supportsRowValueConstructorSyntax
```
public boolean supportsRowValueConstructorSyntax()
```
    Description copied from class: Dialect
    
    Is this dialect known to support what ANSI-SQL terms "row value constructor" syntax; sometimes called tuple syntax.
    Basically, does it support syntax like "... where (FIRST_NAME, LAST_NAME) = ('Steve', 'Ebersole') ...".
    
    Overrides:
    
    supportsRowValueConstructorSyntax in class Dialect
    
    Returns:
    True if this SQL dialect is known to support "row value constructor" syntax; false otherwise.
  - supportsRowValueConstructorSyntaxInInList
```
public boolean supportsRowValueConstructorSyntaxInInList()
```
    Description copied from class: Dialect
    
    If the dialect supports row values, does it offer such support in IN lists as well?
    For example, "... where (FIRST_NAME, LAST_NAME) IN ( (?, ?), (?, ?) ) ..."
    
    Overrides:
    
    supportsRowValueConstructorSyntaxInInList in class Dialect
    
    Returns:
    True if this SQL dialect is known to support "row value constructor" syntax in the IN list; false otherwise.
  - 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 class Dialect
    
    Returns:
    The maximum length.
  - getAddForeignKeyConstraintString
```
public String getAddForeignKeyConstraintString(String constraintName,
                                      String[] foreignKey,
                                      String referencedTable,
                                      String[] primaryKey,
                                      boolean referencesPrimaryKey)
```
    The default behaviour for 'on update restrict' on HANA is currently to not allow any updates to any column of a row if the row has a foreign key. Make the default for foreign keys have 'on update cascade' to work around the issue.
    
    Overrides:
    
    getAddForeignKeyConstraintString in class Dialect
    
    Parameters:
    constraintName - The FK constraint name.
    foreignKey - The names of the columns comprising the FK
    referencedTable - The table referenced by the FK
    primaryKey - The explicit columns in the referencedTable referenced by this FK.
    referencesPrimaryKey - if false, constraint should be explicit about which column names the constraint refers to
    
    Returns:
    the "add FK" fragment

Class AbstractHANADialect

Field Summary

Fields inherited from class org.hibernate.dialect.Dialect

Constructor Summary

Method Summary

Methods inherited from class org.hibernate.dialect.Dialect

Methods inherited from class java.lang.Object

Constructor Detail

AbstractHANADialect

Method Detail

bindLimitParametersInReverseOrder

buildSQLExceptionConversionDelegate

forUpdateOfColumns

getAddColumnString

getAddColumnSuffixString

getCascadeConstraintsString

getCreateSequenceString

getCreateTemporaryTableString

getCurrentTimestampSelectString

getDropSequenceString

getForUpdateString

getForUpdateString

getLimitString

getNotExpression

getQuerySequencesString

getSelectSequenceNextValString

getSequenceNextValString

getSqlTypeDescriptorOverride

isCurrentTimestampSelectStringCallable

registerHanaKeywords

supportsCircularCascadeDeleteConstraints

defaultScrollMode

supportsColumnCheck

supportsCurrentTimestampSelection

supportsEmptyInList

supportsExistsInSelect

supportsExpectedLobUsagePattern

supportsLimit

supportsPooledSequences

supportsSequences

supportsTableCheck

supportsTemporaryTables

supportsTupleDistinctCounts

supportsUnionAll

dropConstraints

supportsRowValueConstructorSyntax

supportsRowValueConstructorSyntaxInInList

getMaxAliasLength

getAddForeignKeyConstraintString