HANAPlatform

java.lang.Object
- org.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
- - org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - - org.eclipse.persistence.platform.database.DatabasePlatform
    - - org.eclipse.persistence.platform.database.HANAPlatform

All Implemented Interfaces:

Serializable, Cloneable, org.eclipse.persistence.internal.core.databaseaccess.CorePlatform<org.eclipse.persistence.internal.helper.ConversionManager>, org.eclipse.persistence.internal.databaseaccess.Platform
```
public final class HANAPlatform
extends DatabasePlatform
```
Database Platform for SAP HANA

Feature Testing
----------------------
- DDL Generation - Succeeds
- Outer Join - Succeeds
- Subquery - Succeeds
- Stored Procedure Calls - Not supported
- Stored Procedure Generation - Not supported
- Native Sequences/Identifier fields - Succeeds
- JPA Bulk Update/Delete - Succeeds with Limitations
- Batch Reading - Succeeds
- Batch Writing - Succeeds
- Pessimistic Locking - Succeeds with Limitations
- First Result/Limit - Succeeds with Limitations
- Expression Framework - Succeeds with Limitations
- Delimiters - Succeeds
- Auto Detection - Succeeds
Limitations
----------------
- Reserved SQL keywords cannot be used as table, column or sequence names. Use a different name, or enclose the name in double quotes. For example: @Column(name="\"LANGUAGE\"")
- Pessimistic locking adds 'FOR UPDATE' to the SELECT statement, and cannot be used with queries that use DISTINCT.
- Pessimistic locking cannot be used with queries that select from multiple tables.
- The LockNoWait option of Pessimistic Locking cannot be used; it is ignored when specified (i.e. only 'FOR UPDATE' is added to the SELECT statement).
- Bulk update and delete operations that require multiple tables to be accessed cannot be used (e.g. bulk operation on an entity that is part of an inheritance hierarchy, UpdateAll and DeleteAll queries).
- '= NULL' and '<> NULL' cannot be used for null comparisons in the WHERE clause. Use 'IS (NOT) NULL' instead.
- Scrollable cursors are not supported.
- Query timeouts are not supported.
Author:

Reiner Singer (SAP AG), Sabine Heider (SAP AG)

See Also:

Serialized Form

Field Summary
- Fields inherited from class org.eclipse.persistence.platform.database.DatabasePlatform
  DEFAULT_VARCHAR_SIZE
- Fields inherited from class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  DEFAULT_MAX_BATCH_WRITING_SIZE, DEFAULT_PARAMETERIZED_MAX_BATCH_WRITING_SIZE, IS_VALID_TIMEOUT, Types_NCLOB, Types_SQLXML

Constructor Summary

Constructors
Constructor and Description

HANAPlatform()

Constructors
Constructor and Description
`HANAPlatform()`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`ValueReadQuery`	`buildSelectQueryForSequenceObject(String sequenceName, Integer size)` INTERNAL: Returns query used to read value generated by sequence object (like Oracle sequence).
`boolean`	`canBatchWriteWithOptimisticLocking(org.eclipse.persistence.internal.databaseaccess.DatabaseCall call)` INTERNAL: Supports Batch Writing with Optimistic Locking.
`int`	`computeMaxRowsForSQL(int firstResultIndex, int maxResults)` INTERNAL: Use the JDBC maxResults and firstResultIndex setting to compute a value to use when limiting the results of a query in SQL.
`static ExpressionOperator`	`createLocate2Operator()` INTERNAL: Build locate operator with 3 params i.e.
`static ExpressionOperator`	`createLocateOperator()` INTERNAL: Build locate operator i.e.
`int`	`executeBatch(Statement statement, boolean isStatementPrepared)` Internal: This gets called on each batch statement execution Needs to be implemented so that it returns the number of rows successfully modified by this statement for optimistic locking purposes.
`String`	`getInputProcedureToken()` Used for stored procedure creation: Prefix for INPUT parameters.
`int`	`getMaxFieldNameSize()` INTERNAL: returns the maximum number of characters that can be used in a field name on this platform.
`String`	`getOutputProcedureToken()` This method is used to print the output parameter token when stored procedures are called
`String`	`getProcedureCallTail()` Used for sp calls.
`org.eclipse.persistence.internal.helper.DatabaseTable`	`getTempTableForTable(org.eclipse.persistence.internal.helper.DatabaseTable table)` INTERNAL: May override this method if the platform support temporary tables.
`boolean`	`isForUpdateCompatibleWithDistinct()` INTERNAL: Indicates whether SELECT DISTINCT ...
`boolean`	`isHANA()`
`void`	`printSQLSelectStatement(org.eclipse.persistence.internal.databaseaccess.DatabaseCall call, org.eclipse.persistence.internal.expressions.ExpressionSQLPrinter printer, org.eclipse.persistence.internal.expressions.SQLSelectStatement statement)` INTERNAL: Print the SQL representation of the statement on a stream, storing the fields in the DatabaseCall.
`boolean`	`requiresProcedureCallOuputToken()` Used for sp calls.
`boolean`	`requiresUniqueConstraintCreationOnTableCreate()` Used for table creation.
`boolean`	`shouldAlwaysUseTempStorageForModifyAll()` INTERNAL: That method affects UpdateAllQuery and DeleteAllQuery execution.
`boolean`	`shouldBindLiterals()` PUBLIC: Allows platform to choose whether to bind literals in DatabaseCalls or not.
`boolean`	`shouldOptimizeDataConversion()` Return if our driver level data conversion optimization is enabled.
`boolean`	`shouldPrintOuterJoinInWhereClause()` Some database require outer joins to be given in the where clause, others require it in the from clause.
`boolean`	`shouldPrintStoredProcedureArgumentNameInCall()` INTERNAL: Should the variable name of a stored procedure call be printed as part of the procedure call e.g.
`boolean`	`shouldUseJDBCOuterJoinSyntax()` JDBC defines and outer join syntax, many drivers do not support this.
`boolean`	`supportsForeignKeyConstraints()`
`boolean`	`supportsGlobalTempTables()` INTERNAL: Indicates whether the platform supports global temporary tables.
`boolean`	`supportsIndividualTableLocking()` INTERNAL: Indicates whether locking clause could be selectively applied only to some tables in a ReadQuery.
`boolean`	`supportsLocalTempTables()` INTERNAL: Indicates whether the platform supports local temporary tables.
`boolean`	`supportsNativeSequenceNumbers()`
`boolean`	`supportsSequenceObjects()` INTERNAL: Indicates whether the platform supports sequence objects.
`boolean`	`supportsStoredFunctions()`
`boolean`	`usesStringBinding()`
`void`	`writeAddColumnClause(Writer writer, org.eclipse.persistence.internal.sessions.AbstractSession session, TableDefinition table, FieldDefinition field)` INTERNAL: May need to override this method if the platform supports ALTER TABLE ADD <column> and the generated sql doesn't work.

Methods inherited from class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
addBatch, addStructConverter, allowsSizeInProcedureArguments, appendLiteralToCall, appendParameter, appendParameterInternal, autoCommit, beginTransaction, buildBatchCriteria, buildBatchCriteriaForComplexId, buildCallWithReturning, buildCreateIndex, buildCreateIndex, buildDropIndex, buildDropIndex, buildProcedureCallString, buildSequenceObjectAlterIncrementWriter, buildSequenceObjectCreationWriter, buildSequenceObjectDeletionWriter, canBuildCallWithReturning, commitTransaction, convertToDatabaseType, copyInto, createArray, createArray, createStruct, createStruct, dontBindUpdateAllQueryUsingTempTables, executeStoredProcedure, freeTemporaryObject, getAssignmentString, getBatchBeginString, getBatchDelimiterString, getBatchEndString, getBatchRowCountAssignString, getBatchRowCountDeclareString, getBatchRowCountReturnString, getBatchWritingMechanism, getCastSizeForVarcharParameter, getClassTypes, getConnection, getConstraintDeletionString, getCreateDatabaseSchemaString, getCreateViewString, getCreationInOutputProcedureToken, getCreationOutputProcedureToken, getCursorCode, getCustomModifyValueForCall, getDefaultSequenceTableName, getDropCascadeString, getDropDatabaseSchemaString, getFieldTypeDefinition, getFieldTypes, getFunctionCallHeader, getIdentifierQuoteCharacter, getIndexNamePrefix, getInOutputProcedureToken, getJDBCOuterJoinString, getJDBCType, getJDBCType, getJDBCTypeForSetNull, getJdbcTypeName, getMaxBatchWritingSize, getMaxForeignKeyNameSize, getMaxIndexNameSize, getMaxUniqueKeyNameSize, getNoWaitString, getObjectFromResultSet, getPartitioningCallback, getPingSQL, getProcedureArgumentSetter, getProcedureArgumentString, getProcedureAsString, getProcedureBeginString, getProcedureCallHeader, getProcedureEndString, getQualifiedName, getQualifiedSequenceTableName, getRefValue, getRefValue, getSelectForUpdateNoWaitString, getSelectForUpdateOfString, getSelectForUpdateString, getSelectForUpdateWaitString, getSequenceCounterFieldName, getSequenceNameFieldName, getSequencePreallocationSize, getSequenceTableName, getStatementCacheSize, getStoredProcedureParameterPrefix, getStoredProcedureTerminationToken, getStringBindingSize, getStructConverters, getTableCreationSuffix, getTransactionIsolation, getTypeConverters, getUniqueConstraintDeletionString, getVPDClearIdentifierQuery, getVPDCreationFunctionString, getVPDCreationPolicyString, getVPDDeletionString, getVPDSetIdentifierQuery, hasPartitioningCallback, initialize, initializeConnectionData, isAlterSequenceObjectSupported, isCastRequired, isDynamicSQLRequiredForFunctions, isInformixOuterJoin, isJDBCExecuteCompliant, isLobCompatibleWithDistinct, isLockTimeoutException, isNullAllowedInSelectClause, isOutputAllowWithResultSet, isRowCountOutputParameterRequired, isXDBDocument, maximumNumericValues, minimumNumericValues, minimumTimeIncrement, prepareBatchStatement, printFieldIdentityClause, printFieldNotNullClause, printFieldNullClause, printFieldTypeSize, printFieldUnique, printStoredFunctionReturnKeyWord, printValuelist, printValuelist, registerOutputParameter, requiresNamedPrimaryKeyConstraints, requiresProcedureBrackets, requiresProcedureCallBrackets, requiresTableInIndexDropDDL, requiresTypeNameToRegisterOutputParameter, retrieveFirstPrimaryKeyOrOne, rollbackTransaction, setBatchWritingMechanism, setCastSizeForVarcharParameter, setCursorCode, setDriverName, setIsCastRequired, setMaxBatchWritingSize, setParameterValueInDatabaseCall, setPartitioningCallback, setPingSQL, setPrintInnerJoinInWhereClause, setPrintOuterJoinInWhereClause, setSequenceCounterFieldName, setSequenceNameFieldName, setSequenceTableName, setShouldBindAllParameters, setShouldBindLiterals, setShouldCacheAllStatements, setShouldCreateIndicesOnForeignKeys, setShouldForceFieldNamesToUpperCase, setShouldIgnoreCaseOnFieldComparisons, setShouldOptimizeDataConversion, setShouldTrimStrings, setShouldUseRownumFiltering, setStatementCacheSize, setStringBindingSize, setSupportsAutoCommit, setTableCreationSuffix, setTransactionIsolation, setUseJDBCStoredProcedureSyntax, setUsesBatchWriting, setUsesByteArrayBinding, setUsesJDBCBatchWriting, setUsesNativeBatchWriting, setUsesNativeSQL, setUsesStreamsForBinding, setUsesStringBinding, shouldBindAllParameters, shouldCacheAllStatements, shouldCreateIndicesForPrimaryKeys, shouldCreateIndicesOnForeignKeys, shouldCreateIndicesOnUniqueKeys, shouldForceFieldNamesToUpperCase, shouldIgnoreCaseOnFieldComparisons, shouldIgnoreException, shouldPrintAliasForUpdate, shouldPrintConstraintNameAfter, shouldPrintFieldIdentityClause, shouldPrintInnerJoinInWhereClause, shouldPrintInOutputTokenBeforeType, shouldPrintInputTokenAtStart, shouldPrintLockingClauseAfterWhereClause, shouldPrintOutputTokenAtStart, shouldPrintOutputTokenBeforeType, shouldPrintStoredProcedureVariablesAfterBeginString, shouldTrimStrings, shouldUseCustomModifyForCall, shouldUseRownumFiltering, supportsANSIInnerJoinSyntax, supportsAutoCommit, supportsAutoConversionToNumericForArithmeticOperations, supportsCountDistinctWithMultipleFields, supportsDeleteOnCascade, supportsIndexes, supportsLockingQueriesWithMultipleTables, supportsNestingOuterJoins, supportsOuterJoinsWithBrackets, supportsPrimaryKeyConstraint, supportsTempTables, supportsUniqueColumns, supportsUniqueKeyConstraints, supportsVPD, usesBatchWriting, usesByteArrayBinding, usesJDBCBatchWriting, usesNativeBatchWriting, usesNativeSQL, usesSequenceTable, usesStreamsForBinding, wasFailureCommunicationBased, writeCleanUpTempTableSql, writeCreateTempTableSql, writeDeleteFromTargetTableUsingTempTableSql, writeInsertIntoTableSql, writeLOB, writeParameterMarker, writeTableCreationSuffix, writeUpdateOriginalFromTempTableSql

Methods inherited from class org.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
addSequence, addSequence, buildNativeCall, buildSelectQueryForIdentity, buildSelectQueryForIdentity, buildSelectQueryForSequenceObject, clone, convertObject, createConnectionCustomizer, getConversionManager, getDataTypesConvertedFrom, getDataTypesConvertedTo, getDefaultNativeSequenceToTable, getDefaultSequence, getDefaultSequenceToWrite, getEndDelimiter, getOperator, getPlatformOperators, getSelectSequenceQuery, getSequence, getSequences, getSequencesToWrite, getStartDelimiter, getTableQualifier, getTimestampFromServer, getTimestampQuery, getUpdateSequenceQuery, hasDefaultSequence, initializeDefaultQueries, isAccess, isAttunity, isCloudscape, isDB2, isDBase, isDerby, isFirebird, isH2, isHSQL, isInformix, isMaxDB, isMySQL, isODBC, isOracle, isOracle9, isPervasive, isPointBase, isPostgreSQL, isSQLAnywhere, isSQLServer, isSybase, isSymfoware, isTimesTen, isTimesTen7, removeAllSequences, removeSequence, setConversionManager, setDefaultNativeSequenceToTable, setDefaultSequence, setEndDelimiter, setSelectSequenceNumberQuery, setSequencePreallocationSize, setSequences, setStartDelimiter, setTableQualifier, setTimestampQuery, setUpdateSequenceQuery, shouldNativeSequenceUseTransaction, shouldPrepare, shouldSelectDistinctIncludeOrderBy, shouldSelectIncludeOrderBy, supportsIdentity, toString, usesPlatformDefaultSequence

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

- Constructor Detail
  - HANAPlatform
```
public HANAPlatform()
```
- Method Detail
  - isHANA
```
public boolean isHANA()
```
    Specified by:
    
    isHANA in interface org.eclipse.persistence.internal.databaseaccess.Platform
    
    Overrides:
    
    isHANA in class org.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
  - usesStringBinding
```
public boolean usesStringBinding()
```
    Overrides:
    
    usesStringBinding in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - requiresUniqueConstraintCreationOnTableCreate
```
public boolean requiresUniqueConstraintCreationOnTableCreate()
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    Used for table creation. If a database platform does not support ALTER TABLE syntax to add/drop unique constraints (like Symfoware), overriding this method will allow the constraint to be specified in the CREATE TABLE statement.
    This only affects unique constraints specified using the UniqueConstraint annotation or equivalent method. Columns for which the 'unique' attribute is set to true will be declared 'UNIQUE' in the CREATE TABLE statement regardless of the return value of this method.
    
    Overrides:
    
    requiresUniqueConstraintCreationOnTableCreate in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    Returns:
    
    whether unique constraints should be declared as part of the CREATE TABLE statement instead of in separate ALTER TABLE ADD/DROP statements.
  - isForUpdateCompatibleWithDistinct
```
public boolean isForUpdateCompatibleWithDistinct()
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    INTERNAL: Indicates whether SELECT DISTINCT ... FOR UPDATE is allowed by the platform (Oracle doesn't allow this).
    
    Overrides:
    
    isForUpdateCompatibleWithDistinct in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - supportsIndividualTableLocking
```
public boolean supportsIndividualTableLocking()
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    INTERNAL: Indicates whether locking clause could be selectively applied only to some tables in a ReadQuery. Example: the following locks the rows in SALARY table, doesn't lock the rows in EMPLOYEE table: on Oracle platform (method returns true): SELECT t0.EMP_ID..., t1.SALARY FROM EMPLOYEE t0, SALARY t1 WHERE ... FOR UPDATE t1.SALARY on SQLServer platform (method returns true): SELECT t0.EMP_ID..., t1.SALARY FROM EMPLOYEE t0, SALARY t1 WITH (UPDLOCK) WHERE ...
    
    Overrides:
    
    supportsIndividualTableLocking in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - createLocateOperator
```
public static ExpressionOperator createLocateOperator()
```
    INTERNAL: Build locate operator i.e. LOCATE("ob", t0.F_NAME)
  - createLocate2Operator
```
public static ExpressionOperator createLocate2Operator()
```
    INTERNAL: Build locate operator with 3 params i.e. LOCATE("coffee", t0.DESCRIP, 4). Last parameter is a start at.
  - printSQLSelectStatement
```
public void printSQLSelectStatement(org.eclipse.persistence.internal.databaseaccess.DatabaseCall call,
                                    org.eclipse.persistence.internal.expressions.ExpressionSQLPrinter printer,
                                    org.eclipse.persistence.internal.expressions.SQLSelectStatement statement)
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    INTERNAL: Print the SQL representation of the statement on a stream, storing the fields in the DatabaseCall.
    
    Overrides:
    
    printSQLSelectStatement in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - computeMaxRowsForSQL
```
public int computeMaxRowsForSQL(int firstResultIndex,
                                int maxResults)
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    INTERNAL: Use the JDBC maxResults and firstResultIndex setting to compute a value to use when limiting the results of a query in SQL. These limits tend to be used in two ways. 1. MaxRows is the index of the last row to be returned (like JDBC maxResults) 2. MaxRows is the number of rows to be returned By default, we assume case 1 and simply return the value of maxResults. Subclasses may provide an override
    
    Overrides:
    
    computeMaxRowsForSQL in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    See Also:
    
    MySQLPlatform
  - shouldOptimizeDataConversion
```
public boolean shouldOptimizeDataConversion()
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    Return if our driver level data conversion optimization is enabled. This can be disabled as some drivers perform data conversion themselves incorrectly.
    
    Overrides:
    
    shouldOptimizeDataConversion in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - supportsNativeSequenceNumbers
```
public final boolean supportsNativeSequenceNumbers()
```
    Overrides:
    
    supportsNativeSequenceNumbers in class org.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
  - buildSelectQueryForSequenceObject
```
public final ValueReadQuery buildSelectQueryForSequenceObject(String sequenceName,
                                                              Integer size)
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
    
    INTERNAL: Returns query used to read value generated by sequence object (like Oracle sequence). In case the other version of this method (taking no parameters) returns null, this method is called every time sequence object NativeSequence reads. If the platform supportsSequenceObjects then (at least) one of buildSelectQueryForSequenceObject methods should return non-null query.
    
    Overrides:
    
    buildSelectQueryForSequenceObject in class org.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
  - supportsGlobalTempTables
```
public final boolean supportsGlobalTempTables()
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    INTERNAL: Indicates whether the platform supports global temporary tables. "Global" means that an attempt to create temporary table with the same name for the second time results in exception. EclipseLink attempts to create global temporary table in the beginning of UpdateAllQuery, execution and assumes that it already exists in case SQLException results. In the end of UpdateAllQuery execution all rows are removed from the temporary table - it is necessary in case the same temporary table will be used by another UpdateAllQuery in the same transaction. Override this method if the platform supports global temporary tables. Note that this method is ignored in case supportsLocalTempTables() returns true.
    
    Overrides:
    
    supportsGlobalTempTables in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - getTempTableForTable
```
public org.eclipse.persistence.internal.helper.DatabaseTable getTempTableForTable(org.eclipse.persistence.internal.helper.DatabaseTable table)
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    INTERNAL: May override this method if the platform support temporary tables.
    
    Overrides:
    
    getTempTableForTable in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    Returns:
    
    DatabaseTable temorary table
  - getMaxFieldNameSize
```
public final int getMaxFieldNameSize()
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    INTERNAL: returns the maximum number of characters that can be used in a field name on this platform.
    
    Overrides:
    
    getMaxFieldNameSize in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - supportsLocalTempTables
```
public final boolean supportsLocalTempTables()
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    INTERNAL: Indicates whether the platform supports local temporary tables. "Local" means that several threads may create temporary tables with the same name. Local temporary table is created in the beginning of UpdateAllQuery execution and dropped in the end of it. Override this method if the platform supports local temporary tables.
    
    Overrides:
    
    supportsLocalTempTables in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - shouldAlwaysUseTempStorageForModifyAll
```
public final boolean shouldAlwaysUseTempStorageForModifyAll()
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    INTERNAL: That method affects UpdateAllQuery and DeleteAllQuery execution. In case it returns false modify all queries would attempt to proceed without using temporary storage if it is possible. In case it returns true modify all queries would use temporary storage unless each modify statement doesn't reference any other tables. May need to override this method if the platform can't handle the sql generated for modify all queries without using temporary storage.
    
    Overrides:
    
    shouldAlwaysUseTempStorageForModifyAll in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - shouldBindLiterals
```
public final boolean shouldBindLiterals()
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    PUBLIC: Allows platform to choose whether to bind literals in DatabaseCalls or not.
    
    Overrides:
    
    shouldBindLiterals in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - shouldPrintOuterJoinInWhereClause
```
public final boolean shouldPrintOuterJoinInWhereClause()
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    Some database require outer joins to be given in the where clause, others require it in the from clause.
    
    Overrides:
    
    shouldPrintOuterJoinInWhereClause in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - shouldUseJDBCOuterJoinSyntax
```
public final boolean shouldUseJDBCOuterJoinSyntax()
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    JDBC defines and outer join syntax, many drivers do not support this. So we normally avoid it.
    
    Overrides:
    
    shouldUseJDBCOuterJoinSyntax in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - supportsSequenceObjects
```
public boolean supportsSequenceObjects()
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
    
    INTERNAL: Indicates whether the platform supports sequence objects. This method is to be used *ONLY* by sequencing classes
    
    Overrides:
    
    supportsSequenceObjects in class org.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
  - canBatchWriteWithOptimisticLocking
```
public boolean canBatchWriteWithOptimisticLocking(org.eclipse.persistence.internal.databaseaccess.DatabaseCall call)
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    INTERNAL: Supports Batch Writing with Optimistic Locking.
    
    Overrides:
    
    canBatchWriteWithOptimisticLocking in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - executeBatch
```
public int executeBatch(Statement statement,
                        boolean isStatementPrepared)
                 throws SQLException
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    Internal: This gets called on each batch statement execution Needs to be implemented so that it returns the number of rows successfully modified by this statement for optimistic locking purposes.
    
    Overrides:
    
    executeBatch in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    isStatementPrepared - - flag is set to true if this statement is prepared
    
    Returns:
    
    - number of rows modified/deleted by this statement
    
    Throws:
    
    SQLException
  - supportsForeignKeyConstraints
```
public boolean supportsForeignKeyConstraints()
```
    Overrides:
    
    supportsForeignKeyConstraints in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - getInputProcedureToken
```
public String getInputProcedureToken()
```
    Used for stored procedure creation: Prefix for INPUT parameters. Not required on most platforms.
    
    Overrides:
    
    getInputProcedureToken in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - getOutputProcedureToken
```
public String getOutputProcedureToken()
```
    This method is used to print the output parameter token when stored procedures are called
    
    Overrides:
    
    getOutputProcedureToken in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - getProcedureCallTail
```
public String getProcedureCallTail()
```
    Used for sp calls.
    
    Overrides:
    
    getProcedureCallTail in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - shouldPrintStoredProcedureArgumentNameInCall
```
public boolean shouldPrintStoredProcedureArgumentNameInCall()
```
    INTERNAL: Should the variable name of a stored procedure call be printed as part of the procedure call e.g. EXECUTE PROCEDURE MyStoredProc(myvariable = ?)
    
    Overrides:
    
    shouldPrintStoredProcedureArgumentNameInCall in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - requiresProcedureCallOuputToken
```
public boolean requiresProcedureCallOuputToken()
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    Used for sp calls. Sybase must print output after output params.
    
    Overrides:
    
    requiresProcedureCallOuputToken in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - supportsStoredFunctions
```
public boolean supportsStoredFunctions()
```
    Overrides:
    
    supportsStoredFunctions in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - writeAddColumnClause
```
public void writeAddColumnClause(Writer writer,
                                 org.eclipse.persistence.internal.sessions.AbstractSession session,
                                 TableDefinition table,
                                 FieldDefinition field)
                          throws IOException
```
    Description copied from class: org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    INTERNAL: May need to override this method if the platform supports ALTER TABLE ADD <column> and the generated sql doesn't work. Write the string that follows ALTER TABLE to create a sql statement for the platform in order to append a new column to an existing table.
    
    Overrides:
    
    writeAddColumnClause in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    Throws:
    
    IOException

Class HANAPlatform

Field Summary

Fields inherited from class org.eclipse.persistence.platform.database.DatabasePlatform

Fields inherited from class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

Constructor Summary

Method Summary

Methods inherited from class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

Methods inherited from class org.eclipse.persistence.internal.databaseaccess.DatasourcePlatform

Methods inherited from class java.lang.Object

Constructor Detail

HANAPlatform

Method Detail

isHANA

usesStringBinding

requiresUniqueConstraintCreationOnTableCreate

isForUpdateCompatibleWithDistinct

supportsIndividualTableLocking

createLocateOperator

createLocate2Operator

printSQLSelectStatement

computeMaxRowsForSQL

shouldOptimizeDataConversion

supportsNativeSequenceNumbers

buildSelectQueryForSequenceObject

supportsGlobalTempTables

getTempTableForTable

getMaxFieldNameSize

supportsLocalTempTables

shouldAlwaysUseTempStorageForModifyAll

shouldBindLiterals

shouldPrintOuterJoinInWhereClause

shouldUseJDBCOuterJoinSyntax

supportsSequenceObjects

canBatchWriteWithOptimisticLocking

executeBatch

supportsForeignKeyConstraints

getInputProcedureToken

getOutputProcedureToken

getProcedureCallTail

shouldPrintStoredProcedureArgumentNameInCall

requiresProcedureCallOuputToken

supportsStoredFunctions

writeAddColumnClause