org.eclipse.persistence.platform.database
Class InformixPlatform

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.InformixPlatform

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, org.eclipse.persistence.internal.databaseaccess.Platform

public class InformixPlatform
extends DatabasePlatform

Purpose: Provides Informix specific behavior.

Responsibilities:

• Types for schema creation.
• Native sequencing using @@SERIAL.

See Also:

Serialized Form

Since:

TOPLink/Java 1.0.1

Field Summary

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

castSizeForVarcharParameter, classTypes, cursorCode, DEFAULT_MAX_BATCH_WRITING_SIZE, DEFAULT_PARAMETERIZED_MAX_BATCH_WRITING_SIZE, fieldTypes, maxBatchWritingSize, pingSQL, printOuterJoinInWhereClause, shouldBindAllParameters, shouldCacheAllStatements, shouldForceFieldNamesToUpperCase, shouldIgnoreCaseOnFieldComparisons, shouldOptimizeDataConversion, shouldTrimStrings, statementCacheSize, stringBindingSize, structConverters, supportsAutoCommit, transactionIsolation, typeConverters, Types_NCLOB, useRownumFiltering, usesBatchWriting, usesByteArrayBinding, usesJDBCBatchWriting, usesNativeBatchWriting, usesNativeSQL, usesStreamsForBinding, usesStringBinding

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

conversionManager, dataTypesConvertedFromAClass, dataTypesConvertedToAClass, defaultSequence, endDelimiter, platformOperators, sequences, startDelimiter, tableQualifier, timestampQuery

Constructor Summary

InformixPlatform()

Method Summary

protected void	appendCalendar(java.util.Calendar calendar, java.io.Writer writer) Answer a platform correct string representation of a Calendar, suitable for SQL generation.
protected void	appendDate(java.sql.Date date, java.io.Writer writer) Answer a platform correct string representation of a Date, suitable for SQL generation.
protected void	appendInformixCalendar(java.util.Calendar calendar, java.io.Writer writer) Write a timestamp in Informix specific format ( yyyy-mm-dd hh:mm:ss.fff)
protected void	appendInformixTimestamp(java.sql.Timestamp timestamp, java.io.Writer writer) Write a timestamp in Informix specific format (yyyy-mm-dd hh:mm:ss.fff).
protected void	appendTime(java.sql.Time time, java.io.Writer writer) Answer a platform correct string representation of a Time, suitable for SQL generation.
protected void	appendTimestamp(java.sql.Timestamp timestamp, java.io.Writer writer) Answer a platform correct string representation of a Timestamp, suitable for SQL generation.
protected java.util.Hashtable	buildFieldTypes()
ValueReadQuery	buildSelectQueryForIdentity() INTERNAL: Build the identity query for native sequencing.
ValueReadQuery	buildSelectQueryForSequenceObject(java.lang.String qualifiedSeqName, java.lang.Integer size) INTERNAL: Returns query used to read value generated by sequence object (like Oracle sequence).
java.io.Writer	buildSequenceObjectAlterIncrementWriter(java.io.Writer writer, java.lang.String fullSeqName, int increment) INTERNAL: Override this method if the platform supports sequence objects and isAlterSequenceObjectSupported returns true.
java.io.Writer	buildSequenceObjectCreationWriter(java.io.Writer writer, java.lang.String fullSeqName, int increment, int start) INTERNAL: Override this method if the platform supports sequence objects.
java.io.Writer	buildSequenceObjectDeletionWriter(java.io.Writer writer, java.lang.String fullSeqName) INTERNAL: Override this method if the platform supports sequence objects.
int	getMaxFieldNameSize() INTERNAL: returns the maximum number of characters that can be used in a field name on this platform.
java.lang.String	getSelectForUpdateString() Informix seems to like this syntax instead of the OF * syntax.
boolean	isAlterSequenceObjectSupported() INTERNAL: Override this method if the platform supports sequence objects and it's possible to alter sequence object's increment in the database.
boolean	isInformix()
boolean	isInformixOuterJoin() Some database require outer joins to be given in the where clause, others require it in the from clause.
java.util.Hashtable	maximumNumericValues() Builds a table of maximum numeric values keyed on java class.
java.util.Hashtable	minimumNumericValues() Builds a table of minimum numeric values keyed on java class.
void	printFieldIdentityClause(java.io.Writer writer) Append the receiver's field serial constraint clause to a writer.
boolean	requiresProcedureCallBrackets() USed for sp calls.
boolean	shouldPrintConstraintNameAfter() Some Platforms want the constraint name after the constraint definition.
boolean	supportsIdentity() INTERNAL: Indicates whether the platform supports identity.
boolean	supportsSequenceObjects() INTERNAL: Indicates whether the platform supports sequence objects.

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

addBatch, addStructConverter, allowsSizeInProcedureArguments, appendBoolean, appendByteArray, appendLiteralToCall, appendLiteralToCallWithBinding, appendNumber, appendParameter, appendParameterInternal, appendString, autoCommit, beginTransaction, buildCallWithReturning, buildClassTypes, buildProcedureCallString, buildSelectQueryForIdentity, buildSelectQueryForSequenceObject, canBuildCallWithReturning, commitTransaction, computeMaxRowsForSQL, convertToDatabaseType, copyInto, createArray, createArray, createPlatformDefaultSequence, createStruct, createStruct, dontBindUpdateAllQueryUsingTempTables, executeBatch, executeStoredProcedure, getAssignmentString, getBatchBeginString, getBatchDelimiterString, getBatchEndString, getCastSizeForVarcharParameter, getClassTypes, getConnection, getConstraintDeletionString, getCreateTempTableSqlBodyForTable, getCreateTempTableSqlPrefix, getCreateTempTableSqlSuffix, getCreateViewString, getCreationInOutputProcedureToken, getCreationOutputProcedureToken, getCursorCode, getCustomModifyValueForCall, getFieldTypeDefinition, getFieldTypes, getFunctionCallHeader, getIdentifierQuoteCharacter, getInOutputProcedureToken, getInputProcedureToken, getJDBCOuterJoinString, getJDBCType, getJDBCType, getJdbcTypeName, getMaxBatchWritingSize, getMaxForeignKeyNameSize, getMaxUniqueKeyNameSize, getNoWaitString, getObjectFromResultSet, getOutputProcedureToken, getPingSQL, getProcedureArgumentSetter, getProcedureArgumentString, getProcedureAsString, getProcedureBeginString, getProcedureCallHeader, getProcedureCallTail, getProcedureEndString, getQualifiedName, getQualifiedSequenceTableName, getRefValue, getRefValue, getSelectForUpdateNoWaitString, getSelectForUpdateOfString, getSelectForUpdateWaitString, getSequenceCounterFieldName, getSequenceNameFieldName, getSequencePreallocationSize, getSequenceTableName, getStatementCacheSize, getStoredProcedureParameterPrefix, getStoredProcedureTerminationToken, getStringBindingSize, getStructConverters, getTempTableForTable, getTransactionIsolation, getTypeConverters, isForUpdateCompatibleWithDistinct, isLockTimeoutException, isNullAllowedInSelectClause, isXDBDocument, prepareBatchStatement, printFieldNotNullClause, printFieldNullClause, printFieldTypeSize, printFieldTypeSize, printFieldUnique, printFieldUnique, printSQLSelectStatement, printValuelist, printValuelist, processResultSet, registerOutputParameter, requiresNamedPrimaryKeyConstraints, requiresProcedureBrackets, requiresProcedureCallOuputToken, requiresTypeNameToRegisterOutputParameter, rollbackTransaction, setCastSizeForVarcharParameter, setClassTypes, setCursorCode, setFieldTypes, setMaxBatchWritingSize, setParameterValueInDatabaseCall, setPingSQL, setPrintOuterJoinInWhereClause, setSequenceCounterFieldName, setSequenceNameFieldName, setSequenceTableName, setShouldBindAllParameters, setShouldCacheAllStatements, setShouldForceFieldNamesToUpperCase, setShouldIgnoreCaseOnFieldComparisons, setShouldOptimizeDataConversion, setShouldTrimStrings, setShouldUseRownumFiltering, setStatementCacheSize, setStringBindingSize, setSupportsAutoCommit, setTransactionIsolation, setUsesBatchWriting, setUsesByteArrayBinding, setUsesJDBCBatchWriting, setUsesNativeBatchWriting, setUsesNativeSQL, setUsesStreamsForBinding, setUsesStringBinding, shouldAlwaysUseTempStorageForModifyAll, shouldBindAllParameters, shouldBindLiterals, shouldCacheAllStatements, shouldForceFieldNamesToUpperCase, shouldIgnoreCaseOnFieldComparisons, shouldIgnoreException, shouldNativeSequenceUseTransaction, shouldOptimizeDataConversion, shouldPrintAliasForUpdate, shouldPrintFieldIdentityClause, shouldPrintInOutputTokenBeforeType, shouldPrintInputTokenAtStart, shouldPrintLockingClauseAfterWhereClause, shouldPrintOuterJoinInWhereClause, shouldPrintOutputTokenAtStart, shouldPrintOutputTokenBeforeType, shouldPrintStoredProcedureArgumentNameInCall, shouldPrintStoredProcedureVariablesAfterBeginString, shouldTempTableSpecifyPrimaryKeys, shouldTrimStrings, shouldUseCustomModifyForCall, shouldUseJDBCOuterJoinSyntax, shouldUseRownumFiltering, supportsAutoCommit, supportsForeignKeyConstraints, supportsGlobalTempTables, supportsIndividualTableLocking, supportsLocalTempTables, supportsLockingQueriesWithMultipleTables, supportsNativeSequenceNumbers, supportsPrimaryKeyConstraint, supportsStoredFunctions, supportsTempTables, supportsUniqueKeyConstraints, usesBatchWriting, usesByteArrayBinding, usesJDBCBatchWriting, usesNativeBatchWriting, usesNativeSQL, usesSequenceTable, usesStreamsForBinding, usesStringBinding, wasFailureCommunicationBased, writeAutoAssignmentSetClause, writeAutoJoinWhereClause, writeCleanUpTempTableSql, writeCreateTempTableSql, writeDeleteFromTargetTableUsingTempTableSql, writeFields, writeFieldsAutoClause, writeFieldsList, writeInsertIntoTableSql, writeJoinWhereClause, writeLOB, writeParameterMarker, writeUpdateOriginalFromTempTableSql

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

addOperator, addSequence, clone, convertObject, createConnectionCustomizer, createSequences, getConversionManager, getDataTypesConvertedFrom, getDataTypesConvertedTo, getDefaultSequence, getDefaultSequenceToWrite, getEndDelimiter, getOperator, getPlatformOperators, getSelectSequenceQuery, getSequence, getSequences, getSequencesToWrite, getStartDelimiter, getTableQualifier, getTimestampFromServer, getTimestampQuery, getUpdateSequenceQuery, hasDefaultSequence, initializePlatformOperators, isAccess, isAttunity, isCloudscape, isDB2, isDBase, isDerby, isHSQL, isMySQL, isODBC, isOracle, isOracle9, isPointBase, isPostgreSQL, isSQLAnywhere, isSQLServer, isSybase, isTimesTen, isTimesTen7, removeAllSequences, removeSequence, sequencesAfterCloneCleanup, setConversionManager, setDefaultSequence, setEndDelimiter, setSelectSequenceNumberQuery, setSequencePreallocationSize, setSequences, setStartDelimiter, setTableQualifier, setTimestampQuery, setUpdateSequenceQuery, toString, usesPlatformDefaultSequence

Methods inherited from class java.lang.Object

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

Constructor Detail

InformixPlatform

public InformixPlatform()

Method Detail

appendDate

protected void appendDate(java.sql.Date date,
                          java.io.Writer writer)
                   throws java.io.IOException

Answer a platform correct string representation of a Date, suitable for SQL generation. Native format: 'yyyy-mm-dd

Overrides:

appendDate in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

Throws:

java.io.IOException

appendInformixTimestamp

protected void appendInformixTimestamp(java.sql.Timestamp timestamp,
                                       java.io.Writer writer)
                                throws java.io.IOException

Write a timestamp in Informix specific format (yyyy-mm-dd hh:mm:ss.fff).

Throws:

java.io.IOException

appendCalendar

protected void appendCalendar(java.util.Calendar calendar,
                              java.io.Writer writer)
                       throws java.io.IOException

Answer a platform correct string representation of a Calendar, suitable for SQL generation. The date is printed in the ODBC platform independent format {d'YYYY-MM-DD'}.

Overrides:

appendCalendar in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

Throws:

java.io.IOException

appendInformixCalendar

protected void appendInformixCalendar(java.util.Calendar calendar,
                                      java.io.Writer writer)
                               throws java.io.IOException

Write a timestamp in Informix specific format ( yyyy-mm-dd hh:mm:ss.fff)

Throws:

java.io.IOException

appendTime

protected void appendTime(java.sql.Time time,
                          java.io.Writer writer)
                   throws java.io.IOException

Answer a platform correct string representation of a Time, suitable for SQL generation. The time is printed in the ODBC platform independent format {t'hh:mm:ss'}.

Overrides:

appendTime in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

Throws:

java.io.IOException

appendTimestamp

protected void appendTimestamp(java.sql.Timestamp timestamp,
                               java.io.Writer writer)
                        throws java.io.IOException

Answer a platform correct string representation of a Timestamp, suitable for SQL generation. The date is printed in the ODBC platform independent format {d'YYYY-MM-DD'}.

Overrides:

appendTimestamp in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

Throws:

java.io.IOException

buildFieldTypes

protected java.util.Hashtable buildFieldTypes()

Overrides:

buildFieldTypes in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

buildSelectQueryForIdentity

public ValueReadQuery buildSelectQueryForIdentity()

INTERNAL: Build the identity query for native sequencing.

Overrides:

buildSelectQueryForIdentity in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

getMaxFieldNameSize

public int getMaxFieldNameSize()

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

getSelectForUpdateString

public java.lang.String getSelectForUpdateString()

Informix seems to like this syntax instead of the OF * syntax.

Overrides:

getSelectForUpdateString in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

isInformix

public boolean isInformix()

Specified by:

isInformix in interface org.eclipse.persistence.internal.databaseaccess.Platform

Overrides:

isInformix in class org.eclipse.persistence.internal.databaseaccess.DatasourcePlatform

isInformixOuterJoin

public boolean isInformixOuterJoin()

Some database require outer joins to be given in the where clause, others require it in the from clause. Informix requires it in the from clause with no ON expression.

Overrides:

isInformixOuterJoin in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

maximumNumericValues

public java.util.Hashtable maximumNumericValues()

Builds a table of maximum numeric values keyed on java class. This is used for type testing but might also be useful to end users attempting to sanitize values.

NOTE: BigInteger & BigDecimal maximums are dependent upon their precision & Scale

Overrides:

maximumNumericValues in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

minimumNumericValues

public java.util.Hashtable minimumNumericValues()

Builds a table of minimum numeric values keyed on java class. This is used for type testing but might also be useful to end users attempting to sanitize values.

NOTE: BigInteger & BigDecimal minimums are dependent upon their precision & Scale

Overrides:

minimumNumericValues in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

printFieldIdentityClause

public void printFieldIdentityClause(java.io.Writer writer)
                              throws ValidationException

Append the receiver's field serial constraint clause to a writer.

Overrides:

printFieldIdentityClause in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

Throws:

ValidationException

requiresProcedureCallBrackets

public boolean requiresProcedureCallBrackets()

USed for sp calls.

Overrides:

requiresProcedureCallBrackets in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

shouldPrintConstraintNameAfter

public boolean shouldPrintConstraintNameAfter()

Some Platforms want the constraint name after the constraint definition.

Overrides:

shouldPrintConstraintNameAfter in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

supportsIdentity

public boolean supportsIdentity()

INTERNAL: Indicates whether the platform supports identity. Informix does this through SERIAL field types. This method is to be used *ONLY* by sequencing classes

Overrides:

supportsIdentity in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

supportsSequenceObjects

public boolean supportsSequenceObjects()

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.DatabasePlatform

buildSelectQueryForSequenceObject

public ValueReadQuery buildSelectQueryForSequenceObject(java.lang.String qualifiedSeqName,
                                                        java.lang.Integer size)

INTERNAL: Returns query used to read value generated by sequence object (like Oracle sequence). This method is called when sequence object NativeSequence is connected, the returned query used until the sequence is disconnected. 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.DatabasePlatform

buildSequenceObjectCreationWriter

public java.io.Writer buildSequenceObjectCreationWriter(java.io.Writer writer,
                                                        java.lang.String fullSeqName,
                                                        int increment,
                                                        int start)
                                                 throws java.io.IOException

INTERNAL: Override this method if the platform supports sequence objects. Returns sql used to create sequence object in the database.

Overrides:

buildSequenceObjectCreationWriter in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

Throws:

java.io.IOException

buildSequenceObjectDeletionWriter

public java.io.Writer buildSequenceObjectDeletionWriter(java.io.Writer writer,
                                                        java.lang.String fullSeqName)
                                                 throws java.io.IOException

INTERNAL: Override this method if the platform supports sequence objects. Returns sql used to delete sequence object from the database.

Overrides:

buildSequenceObjectDeletionWriter in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

Throws:

java.io.IOException

isAlterSequenceObjectSupported

public boolean isAlterSequenceObjectSupported()

INTERNAL: Override this method if the platform supports sequence objects and it's possible to alter sequence object's increment in the database.

Overrides:

isAlterSequenceObjectSupported in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

buildSequenceObjectAlterIncrementWriter

public java.io.Writer buildSequenceObjectAlterIncrementWriter(java.io.Writer writer,
                                                              java.lang.String fullSeqName,
                                                              int increment)
                                                       throws java.io.IOException

INTERNAL: Override this method if the platform supports sequence objects and isAlterSequenceObjectSupported returns true. Returns sql used to alter sequence object's increment in the database.

Overrides:

buildSequenceObjectAlterIncrementWriter in class org.eclipse.persistence.internal.databaseaccess.DatabasePlatform

Throws:

java.io.IOException