DerbyPlatform (EclipseLink 2.6.2, API Reference)

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.DB2Platform
      - org.eclipse.persistence.platform.database.DerbyPlatform

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, org.eclipse.persistence.internal.core.databaseaccess.CorePlatform<org.eclipse.persistence.internal.helper.ConversionManager>, org.eclipse.persistence.internal.databaseaccess.Platform

Direct Known Subclasses:

JavaDBPlatform
```
public class DerbyPlatform
extends DB2Platform
```
Purpose: Provides Derby DBMS specific behavior.

See Also:
Serialized Form
Since:

TOPLink Essentials 1.0

Field Summary

Fields
Modifier and Type	Field and Description
`protected boolean`	`isConnectionDataInitialized`
`protected boolean`	`isSequenceSupported` Allow sequence support to be disabled for Derby < 10.6.1.
`static int`	`MAX_BLOB`
`static int`	`MAX_CLOB`

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

Fields inherited from class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
batchWritingMechanism, castSizeForVarcharParameter, classTypes, cursorCode, DEFAULT_MAX_BATCH_WRITING_SIZE, DEFAULT_PARAMETERIZED_MAX_BATCH_WRITING_SIZE, driverName, driverSupportsNationalCharacterVarying, fieldTypes, IS_VALID_TIMEOUT, isCastRequired, maxBatchWritingSize, partitioningCallback, pingSQL, printInnerJoinInWhereClause, printOuterJoinInWhereClause, shouldBindAllParameters, shouldBindLiterals, shouldCacheAllStatements, shouldCreateIndicesOnForeignKeys, shouldForceFieldNamesToUpperCase, shouldIgnoreCaseOnFieldComparisons, shouldOptimizeDataConversion, shouldTrimStrings, statementCacheSize, storedProcedureTerminationToken, stringBindingSize, structConverters, supportsAutoCommit, tableCreationSuffix, transactionIsolation, typeConverters, Types_NCLOB, Types_SQLXML, useJDBCStoredProcedureSyntax, useNationalCharacterVarying, useRownumFiltering, usesBatchWriting, usesByteArrayBinding, usesJDBCBatchWriting, usesNativeBatchWriting, usesNativeSQL, usesStreamsForBinding, usesStringBinding

Fields inherited from class org.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
conversionManager, dataTypesConvertedFromAClass, dataTypesConvertedToAClass, defaultNativeSequenceToTable, defaultSequence, endDelimiter, platformOperators, sequences, sequencesLock, startDelimiter, tableQualifier, timestampQuery

Constructor Summary

Constructors
Constructor and Description

DerbyPlatform()

Constructors
Constructor and Description
`DerbyPlatform()`

Method Summary

Methods
Modifier and Type	Method and Description
`protected void`	`appendByteArray(byte[] bytes, java.io.Writer writer)` INTERNAL: TODO: Need to find out how can byte arrays be inlined in Derby
`protected java.util.Hashtable`	`buildFieldTypes()`
`ValueReadQuery`	`buildSelectQueryForIdentity()` INTERNAL: Build the identity query for native sequencing.
`java.io.Writer`	`buildSequenceObjectDeletionWriter(java.io.Writer writer, java.lang.String fullSeqName)` INTERNAL: Derby supports sequence objects as of 10.6.1.
`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`	`extractOperator()` INTERNAL: Derby does not support EXTRACT, but does have YEAR, MONTH, DAY, etc.
`protected java.lang.String`	`getCreateTempTableSqlBodyForTable(org.eclipse.persistence.internal.helper.DatabaseTable table)` INTERNAL:
`protected java.lang.String`	`getCreateTempTableSqlSuffix()` INTERNAL:
`java.lang.String`	`getInOutputProcedureToken()` This method is used to print the output parameter token when stored procedures are called
`java.util.Vector`	`getNativeTableInfo(java.lang.String table, java.lang.String creator, org.eclipse.persistence.internal.sessions.AbstractSession session)` INTERNAL: Not currently used.
`java.lang.String`	`getProcedureBeginString()` Used for stored procedure defs.
`java.lang.String`	`getProcedureEndString()` Used for stored procedure defs.
`java.lang.String`	`getSelectForUpdateString()` INTERNAL: Used for pessimistic locking in DB2.
`ValueReadQuery`	`getTimestampQuery()` INTERNAL: This method returns the query to select the timestamp from the server for Derby.
`void`	`initializeConnectionData(java.sql.Connection connection)` INTERNAL:
`protected void`	`initializePlatformOperators()` Initialize any platform-specific operators
`boolean`	`isAlterSequenceObjectSupported()` INTERNAL: DB2 added SEQUENCE support as of (I believe) v8.
`boolean`	`isDB2()`
`boolean`	`isDerby()` INTERNAL: Answers whether platform is Derby
`void`	`printFieldIdentityClause(java.io.Writer writer)` INTERNAL: Append the receiver's field 'identity' constraint clause to a writer.
`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.
`protected void`	`setNullFromDatabaseField(org.eclipse.persistence.internal.helper.DatabaseField databaseField, java.sql.PreparedStatement statement, int index)`
`boolean`	`shouldIgnoreException(java.sql.SQLException exception)` Allow for the platform to ignore exceptions.
`boolean`	`shouldPrintOutputTokenAtStart()` This is required in the construction of the stored procedures with output parameters
`protected boolean`	`shouldTempTableSpecifyPrimaryKeys()` INTERNAL: Indicates whether temporary table can specify primary keys (some platforms don't allow that).
`boolean`	`supportsSequenceObjects()` INTERNAL: Derby supports sequence objects as of 10.6.1.
`void`	`writeUpdateOriginalFromTempTableSql(java.io.Writer writer, org.eclipse.persistence.internal.helper.DatabaseTable table, java.util.Collection pkFields, java.util.Collection assignedFields)` INTERNAL: May need to override this method if the platform supports temporary tables and the generated sql doesn't work.

Methods inherited from class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
addBatch, addStructConverter, allowsSizeInProcedureArguments, appendBoolean, appendLiteralToCall, appendLiteralToCallWithBinding, appendNumber, appendParameter, appendParameterInternal, appendString, autoCommit, beginTransaction, buildBatchCriteria, buildBatchCriteriaForComplexId, buildCallWithReturning, buildClassTypes, buildCreateIndex, buildCreateIndex, buildDropIndex, buildDropIndex, buildProcedureCallString, buildSequenceObjectAlterIncrementWriter, buildSequenceObjectCreationWriter, canBatchWriteWithOptimisticLocking, canBuildCallWithReturning, commitTransaction, convertToDatabaseType, copyInto, createArray, createArray, createPlatformDefaultSequence, createStruct, createStruct, executeBatch, executeStoredProcedure, freeTemporaryObject, getAssignmentString, getBatchBeginString, getBatchDelimiterString, getBatchEndString, getBatchRowCountAssignString, getBatchRowCountDeclareString, getBatchRowCountReturnString, getBatchWritingMechanism, getCastSizeForVarcharParameter, getClassTypes, getConnection, getConstraintDeletionString, getCreateDatabaseSchemaString, getCreateViewString, getCreationInOutputProcedureToken, getCreationOutputProcedureToken, getCursorCode, getCustomModifyValueForCall, getDefaultSequenceTableName, getDriverSupportsNVarChar, getDropCascadeString, getDropDatabaseSchemaString, getFieldTypeDefinition, getFieldTypes, getFunctionCallHeader, getIdentifierQuoteCharacter, getIndexNamePrefix, getInputProcedureToken, getJDBCOuterJoinString, getJDBCType, getJDBCType, getJDBCTypeForSetNull, getJdbcTypeName, getMaxBatchWritingSize, getMaxIndexNameSize, getNoWaitString, getObjectFromResultSet, getOutputProcedureToken, getPartitioningCallback, getPingSQL, getProcedureArgumentSetter, getProcedureArgumentString, getProcedureCallTail, getQualifiedName, getQualifiedSequenceTableName, getRefValue, getRefValue, getSelectForUpdateNoWaitString, getSelectForUpdateOfString, getSelectForUpdateWaitString, getSequenceCounterFieldName, getSequenceNameFieldName, getSequencePreallocationSize, getSequenceTableName, getStatementCacheSize, getStoredProcedureParameterPrefix, getStoredProcedureTerminationToken, getStringBindingSize, getStructConverters, getTableCreationSuffix, getTransactionIsolation, getTypeConverters, getUniqueConstraintDeletionString, getUseNationalCharacterVaryingTypeForString, getVPDClearIdentifierQuery, getVPDCreationFunctionString, getVPDCreationPolicyString, getVPDDeletionString, getVPDSetIdentifierQuery, hasPartitioningCallback, initialize, isCastRequired, isForUpdateCompatibleWithDistinct, isInformixOuterJoin, isJDBCExecuteCompliant, isLobCompatibleWithDistinct, isLockTimeoutException, isOutputAllowWithResultSet, isRowCountOutputParameterRequired, isXDBDocument, minimumTimeIncrement, prepareBatchStatement, printFieldNotNullClause, printFieldNullClause, printFieldTypeSize, printFieldUnique, printFieldUnique, printStoredFunctionReturnKeyWord, printValuelist, printValuelist, registerOutputParameter, requiresNamedPrimaryKeyConstraints, requiresProcedureBrackets, requiresProcedureCallBrackets, requiresProcedureCallOuputToken, requiresTableInIndexDropDDL, requiresTypeNameToRegisterOutputParameter, requiresUniqueConstraintCreationOnTableCreate, retrieveFirstPrimaryKeyOrOne, rollbackTransaction, setBatchWritingMechanism, setCastSizeForVarcharParameter, setClassTypes, setCursorCode, setDriverName, setDriverSupportsNVarChar, setFieldTypes, setIsCastRequired, setMaxBatchWritingSize, setParameterValueInDatabaseCall, setPartitioningCallback, setPingSQL, setPrintInnerJoinInWhereClause, setPrintOuterJoinInWhereClause, setSequenceCounterFieldName, setSequenceNameFieldName, setSequenceTableName, setShouldBindAllParameters, setShouldBindLiterals, setShouldCacheAllStatements, setShouldCreateIndicesOnForeignKeys, setShouldForceFieldNamesToUpperCase, setShouldIgnoreCaseOnFieldComparisons, setShouldOptimizeDataConversion, setShouldTrimStrings, setShouldUseRownumFiltering, setStatementCacheSize, setStoredProcedureTerminationToken, setStringBindingSize, setSupportsAutoCommit, setTableCreationSuffix, setTransactionIsolation, setUseJDBCStoredProcedureSyntax, setUseNationalCharacterVaryingTypeForString, setUsesBatchWriting, setUsesByteArrayBinding, setUsesJDBCBatchWriting, setUsesNativeBatchWriting, setUsesNativeSQL, setUsesStreamsForBinding, setUsesStringBinding, shouldAlwaysUseTempStorageForModifyAll, shouldBindAllParameters, shouldBindLiterals, shouldCacheAllStatements, shouldCreateIndicesForPrimaryKeys, shouldCreateIndicesOnForeignKeys, shouldCreateIndicesOnUniqueKeys, shouldForceFieldNamesToUpperCase, shouldIgnoreCaseOnFieldComparisons, shouldOptimizeDataConversion, shouldPrintAliasForUpdate, shouldPrintConstraintNameAfter, shouldPrintFieldIdentityClause, shouldPrintInnerJoinInWhereClause, shouldPrintInOutputTokenBeforeType, shouldPrintInputTokenAtStart, shouldPrintLockingClauseAfterWhereClause, shouldPrintOuterJoinInWhereClause, shouldPrintOutputTokenBeforeType, shouldPrintStoredProcedureArgumentNameInCall, shouldPrintStoredProcedureVariablesAfterBeginString, shouldTrimStrings, shouldUseCustomModifyForCall, shouldUseGetSetNString, shouldUseRownumFiltering, supportsANSIInnerJoinSyntax, supportsAutoCommit, supportsAutoConversionToNumericForArithmeticOperations, supportsCountDistinctWithMultipleFields, supportsDeleteOnCascade, supportsForeignKeyConstraints, supportsIndexes, supportsIndividualTableLocking, supportsLocalTempTables, supportsNestingOuterJoins, supportsOuterJoinsWithBrackets, supportsPrimaryKeyConstraint, supportsStoredFunctions, supportsTempTables, supportsUniqueColumns, supportsUniqueKeyConstraints, supportsVPD, usesBatchWriting, usesByteArrayBinding, usesJDBCBatchWriting, usesNativeBatchWriting, usesNativeSQL, usesSequenceTable, usesStreamsForBinding, usesStringBinding, wasFailureCommunicationBased, writeAddColumnClause, writeAutoAssignmentSetClause, writeAutoJoinWhereClause, writeCleanUpTempTableSql, writeCreateTempTableSql, writeDeleteFromTargetTableUsingTempTableSql, writeFields, writeFieldsAutoClause, writeFieldsList, writeInsertIntoTableSql, writeJoinWhereClause, writeLOB, writeTableCreationSuffix

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

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

- Field Detail
  - MAX_CLOB
```
public static final int MAX_CLOB
```
    See Also:
    Constant Field Values
  - MAX_BLOB
```
public static final int MAX_BLOB
```
    See Also:
    Constant Field Values
  - isSequenceSupported
```
protected boolean isSequenceSupported
```
    Allow sequence support to be disabled for Derby < 10.6.1.
  - isConnectionDataInitialized
```
protected boolean isConnectionDataInitialized
```
- Constructor Detail
  - DerbyPlatform
```
public DerbyPlatform()
```
- Method Detail
  - appendByteArray
```
protected void appendByteArray(byte[] bytes,
                   java.io.Writer writer)
                        throws java.io.IOException
```
    INTERNAL: TODO: Need to find out how can byte arrays be inlined in Derby
    
    Overrides:
    
    appendByteArray in class DB2Platform
    
    Throws:
    
    java.io.IOException
  - getTimestampQuery
```
public ValueReadQuery getTimestampQuery()
```
    INTERNAL: This method returns the query to select the timestamp from the server for Derby.
    
    Specified by:
    
    getTimestampQuery in interface org.eclipse.persistence.internal.databaseaccess.Platform
    
    Overrides:
    
    getTimestampQuery in class DB2Platform
  - getNativeTableInfo
```
public java.util.Vector getNativeTableInfo(java.lang.String table,
                                  java.lang.String creator,
                                  org.eclipse.persistence.internal.sessions.AbstractSession session)
```
    INTERNAL: Not currently used.
    
    Overrides:
    
    getNativeTableInfo in class DB2Platform
  - getProcedureEndString
```
public java.lang.String getProcedureEndString()
```
    Used for stored procedure defs.
    
    Overrides:
    
    getProcedureEndString in class DB2Platform
  - getProcedureBeginString
```
public java.lang.String getProcedureBeginString()
```
    Used for stored procedure defs.
    
    Overrides:
    
    getProcedureBeginString in class DB2Platform
  - getInOutputProcedureToken
```
public java.lang.String getInOutputProcedureToken()
```
    This method is used to print the output parameter token when stored procedures are called
    
    Overrides:
    
    getInOutputProcedureToken in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - shouldPrintOutputTokenAtStart
```
public boolean shouldPrintOutputTokenAtStart()
```
    This is required in the construction of the stored procedures with output parameters
    
    Overrides:
    
    shouldPrintOutputTokenAtStart in class DB2Platform
  - isDerby
```
public boolean isDerby()
```
    INTERNAL: Answers whether platform is Derby
    
    Specified by:
    
    isDerby in interface org.eclipse.persistence.internal.databaseaccess.Platform
    
    Overrides:
    
    isDerby in class org.eclipse.persistence.internal.databaseaccess.DatasourcePlatform
  - isDB2
```
public boolean isDB2()
```
    Specified by:
    
    isDB2 in interface org.eclipse.persistence.internal.databaseaccess.Platform
    
    Overrides:
    
    isDB2 in class DB2Platform
  - getSelectForUpdateString
```
public java.lang.String getSelectForUpdateString()
```
    Description copied from class: DB2Platform
    
    INTERNAL: Used for pessimistic locking in DB2. Without the "WITH RS" the lock is not held.
    
    Overrides:
    
    getSelectForUpdateString in class DB2Platform
  - shouldIgnoreException
```
public boolean shouldIgnoreException(java.sql.SQLException exception)
```
    Allow for the platform to ignore exceptions.
    
    Overrides:
    
    shouldIgnoreException in class DB2Platform
  - getCreateTempTableSqlSuffix
```
protected java.lang.String getCreateTempTableSqlSuffix()
```
    INTERNAL:
    
    Overrides:
    
    getCreateTempTableSqlSuffix in class DB2Platform
  - buildSelectQueryForIdentity
```
public ValueReadQuery buildSelectQueryForIdentity()
```
    INTERNAL: Build the identity query for native sequencing.
    
    Overrides:
    
    buildSelectQueryForIdentity in class DB2Platform
  - shouldTempTableSpecifyPrimaryKeys
```
protected boolean shouldTempTableSpecifyPrimaryKeys()
```
    INTERNAL: Indicates whether temporary table can specify primary keys (some platforms don't allow that). Used by writeCreateTempTableSql method.
    
    Overrides:
    
    shouldTempTableSpecifyPrimaryKeys in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - getCreateTempTableSqlBodyForTable
```
protected java.lang.String getCreateTempTableSqlBodyForTable(org.eclipse.persistence.internal.helper.DatabaseTable table)
```
    INTERNAL:
    
    Overrides:
    
    getCreateTempTableSqlBodyForTable in class DB2Platform
  - writeUpdateOriginalFromTempTableSql
```
public void writeUpdateOriginalFromTempTableSql(java.io.Writer writer,
                                       org.eclipse.persistence.internal.helper.DatabaseTable table,
                                       java.util.Collection pkFields,
                                       java.util.Collection assignedFields)
                                         throws java.io.IOException
```
    INTERNAL: May need to override this method if the platform supports temporary tables and the generated sql doesn't work. Write an sql string for updating the original table from the temporary table. Precondition: supportsTempTables() == true. Precondition: pkFields and assignFields don't intersect.
    
    Overrides:
    
    writeUpdateOriginalFromTempTableSql in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    Parameters:
    writer - for writing the sql
    table - is original table for which temp table is created.
    pkFields - - primary key fields for the original table.
    assignedFields - - fields to be assigned a new value.
    
    Throws:
    
    java.io.IOException
  - printFieldIdentityClause
```
public void printFieldIdentityClause(java.io.Writer writer)
                              throws ValidationException
```
    INTERNAL: Append the receiver's field 'identity' constraint clause to a writer.
    
    Overrides:
    
    printFieldIdentityClause in class DB2Platform
    
    Throws:
    
    ValidationException
  - buildFieldTypes
```
protected java.util.Hashtable buildFieldTypes()
```
    Overrides:
    
    buildFieldTypes in class DB2Platform
  - setNullFromDatabaseField
```
protected void setNullFromDatabaseField(org.eclipse.persistence.internal.helper.DatabaseField databaseField,
                            java.sql.PreparedStatement statement,
                            int index)
                                 throws java.sql.SQLException
```
    Overrides:
    
    setNullFromDatabaseField in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    Throws:
    
    java.sql.SQLException
  - initializePlatformOperators
```
protected void initializePlatformOperators()
```
    Initialize any platform-specific operators
    
    Overrides:
    
    initializePlatformOperators in class DB2Platform
  - extractOperator
```
public static ExpressionOperator extractOperator()
```
    INTERNAL: Derby does not support EXTRACT, but does have YEAR, MONTH, DAY, etc.
  - computeMaxRowsForSQL
```
public 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. 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 Derby uses case #2 and therefore the maxResults has to be altered based on the firstResultIndex.
    
    Overrides:
    
    computeMaxRowsForSQL in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
  - 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)
```
    INTERNAL: Print the SQL representation of the statement on a stream, storing the fields in the DatabaseCall. Derby supports pagination through its "OFFSET n ROWS FETCH NEXT m ROWS" syntax.
    
    Overrides:
    
    printSQLSelectStatement in class DB2Platform
  - supportsSequenceObjects
```
public boolean supportsSequenceObjects()
```
    INTERNAL: Derby supports sequence objects as of 10.6.1.
    
    Overrides:
    
    supportsSequenceObjects in class DB2Platform
  - isAlterSequenceObjectSupported
```
public boolean isAlterSequenceObjectSupported()
```
    Description copied from class: DB2Platform
    
    INTERNAL: DB2 added SEQUENCE support as of (I believe) v8.
    
    Overrides:
    
    isAlterSequenceObjectSupported in class DB2Platform
  - buildSequenceObjectDeletionWriter
```
public java.io.Writer buildSequenceObjectDeletionWriter(java.io.Writer writer,
                                               java.lang.String fullSeqName)
                                                 throws java.io.IOException
```
    INTERNAL: Derby supports sequence objects as of 10.6.1.
    
    Overrides:
    
    buildSequenceObjectDeletionWriter in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform
    
    Throws:
    
    java.io.IOException
  - initializeConnectionData
```
public void initializeConnectionData(java.sql.Connection connection)
                              throws java.sql.SQLException
```
    INTERNAL:
    
    Overrides:
    
    initializeConnectionData in class DB2Platform
    
    Throws:
    
    java.sql.SQLException

Class DerbyPlatform

Field Summary

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

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

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

Constructor Summary

Method Summary

Methods inherited from class org.eclipse.persistence.platform.database.DB2Platform

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

Field Detail

MAX_CLOB

MAX_BLOB

isSequenceSupported

isConnectionDataInitialized

Constructor Detail

DerbyPlatform

Method Detail

appendByteArray

getTimestampQuery

getNativeTableInfo

getProcedureEndString

getProcedureBeginString

getInOutputProcedureToken

shouldPrintOutputTokenAtStart

isDerby

isDB2

getSelectForUpdateString

shouldIgnoreException

getCreateTempTableSqlSuffix

buildSelectQueryForIdentity

shouldTempTableSpecifyPrimaryKeys

getCreateTempTableSqlBodyForTable

writeUpdateOriginalFromTempTableSql

printFieldIdentityClause

buildFieldTypes

setNullFromDatabaseField

initializePlatformOperators

extractOperator

computeMaxRowsForSQL

printSQLSelectStatement

supportsSequenceObjects

isAlterSequenceObjectSupported

buildSequenceObjectDeletionWriter

initializeConnectionData