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:

Serializable, 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.

Since:

TOPLink/Java 1.0.1

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, Types_NCLOB

Constructor Summary

InformixPlatform()

Method Summary

ValueReadQuery	buildSelectQueryForIdentity() INTERNAL: Build the identity query for native sequencing.
ValueReadQuery	buildSelectQueryForSequenceObject(String qualifiedSeqName, Integer size) INTERNAL: Returns query used to read value generated by sequence object (like Oracle sequence).
int	getMaxFieldNameSize() INTERNAL: returns the maximum number of characters that can be used in a field name on this platform.
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.
Hashtable	maximumNumericValues() Builds a table of maximum numeric values keyed on java class.
Hashtable	minimumNumericValues() Builds a table of minimum numeric values keyed on java class.
void	printFieldIdentityClause(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, appendLiteralToCall, appendParameter, appendParameterInternal, autoCommit, beginTransaction, buildCallWithReturning, buildCreateIndex, buildDropIndex, buildProcedureCallString, buildSelectQueryForIdentity, buildSelectQueryForSequenceObject, buildSequenceObjectAlterIncrementWriter, buildSequenceObjectCreationWriter, buildSequenceObjectDeletionWriter, canBatchWriteWithOptimisticLocking, canBuildCallWithReturning, commitTransaction, computeMaxRowsForSQL, convertToDatabaseType, copyInto, createArray, createArray, createStruct, createStruct, dontBindUpdateAllQueryUsingTempTables, executeBatch, executeStoredProcedure, freeTemporaryObject, getAssignmentString, getBatchBeginString, getBatchDelimiterString, getBatchEndString, getCastSizeForVarcharParameter, getClassTypes, getConnection, getConstraintDeletionString, getCreateViewString, getCreationInOutputProcedureToken, getCreationOutputProcedureToken, getCursorCode, getCustomModifyValueForCall, getDefaultSequenceTableName, getFieldTypeDefinition, getFieldTypes, getFunctionCallHeader, getIdentifierQuoteCharacter, getInOutputProcedureToken, getInputProcedureToken, getJDBCOuterJoinString, getJDBCType, getJDBCType, getJdbcTypeName, getMaxBatchWritingSize, getMaxForeignKeyNameSize, getMaxIndexNameSize, 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, initialize, isCastRequired, isDynamicSQLRequiredForFunctions, isForUpdateCompatibleWithDistinct, isLockTimeoutException, isNullAllowedInSelectClause, isXDBDocument, prepareBatchStatement, printFieldNotNullClause, printFieldNullClause, printFieldTypeSize, printFieldUnique, printSQLSelectStatement, printValuelist, printValuelist, registerOutputParameter, requiresNamedPrimaryKeyConstraints, requiresProcedureBrackets, requiresProcedureCallOuputToken, requiresTypeNameToRegisterOutputParameter, requiresUniqueConstraintCreationOnTableCreate, rollbackTransaction, setCastSizeForVarcharParameter, setCursorCode, setIsCastRequired, setMaxBatchWritingSize, setParameterValueInDatabaseCall, setPingSQL, setPrintOuterJoinInWhereClause, setSequenceCounterFieldName, setSequenceNameFieldName, setSequenceTableName, setShouldBindAllParameters, setShouldBindLiterals, setShouldCacheAllStatements, setShouldForceFieldNamesToUpperCase, setShouldIgnoreCaseOnFieldComparisons, setShouldOptimizeDataConversion, setShouldTrimStrings, setShouldUseRownumFiltering, setStatementCacheSize, setStringBindingSize, setSupportsAutoCommit, setTransactionIsolation, setUsesBatchWriting, setUsesByteArrayBinding, setUsesJDBCBatchWriting, setUsesNativeBatchWriting, setUsesNativeSQL, setUsesStreamsForBinding, setUsesStringBinding, shouldAlwaysUseTempStorageForModifyAll, shouldBindAllParameters, shouldBindLiterals, shouldCacheAllStatements, shouldCreateIndicesForPrimaryKeys, shouldCreateIndicesOnUniqueKeys, shouldForceFieldNamesToUpperCase, shouldIgnoreCaseOnFieldComparisons, shouldIgnoreException, shouldNativeSequenceUseTransaction, shouldOptimizeDataConversion, shouldPrintAliasForUpdate, shouldPrintFieldIdentityClause, shouldPrintInOutputTokenBeforeType, shouldPrintInputTokenAtStart, shouldPrintLockingClauseAfterWhereClause, shouldPrintOuterJoinInWhereClause, shouldPrintOutputTokenAtStart, shouldPrintOutputTokenBeforeType, shouldPrintStoredProcedureArgumentNameInCall, shouldPrintStoredProcedureVariablesAfterBeginString, shouldTrimStrings, shouldUseCustomModifyForCall, shouldUseJDBCOuterJoinSyntax, shouldUseRownumFiltering, supportsANSIInnerJoinSyntax, supportsAutoCommit, supportsAutoConversionToNumericForArithmeticOperations, supportsForeignKeyConstraints, supportsGlobalTempTables, supportsIndividualTableLocking, supportsLocalTempTables, supportsLockingQueriesWithMultipleTables, supportsNativeSequenceNumbers, supportsNestingOuterJoins, supportsOuterJoinsWithBrackets, supportsPrimaryKeyConstraint, supportsStoredFunctions, supportsTempTables, supportsUniqueColumns, supportsUniqueKeyConstraints, usesBatchWriting, usesByteArrayBinding, usesJDBCBatchWriting, usesNativeBatchWriting, usesNativeSQL, usesSequenceTable, usesStreamsForBinding, usesStringBinding, wasFailureCommunicationBased, writeCleanUpTempTableSql, writeCreateTempTableSql, writeDeleteFromTargetTableUsingTempTableSql, writeInsertIntoTableSql, writeLOB, writeParameterMarker, writeUpdateOriginalFromTempTableSql

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

addSequence, clone, convertObject, createConnectionCustomizer, getConversionManager, getDataTypesConvertedFrom, getDataTypesConvertedTo, getDefaultSequence, getDefaultSequenceToWrite, getEndDelimiter, getOperator, getPlatformOperators, getSelectSequenceQuery, getSequence, getSequences, getSequencesToWrite, getStartDelimiter, getTableQualifier, getTimestampFromServer, getTimestampQuery, getUpdateSequenceQuery, hasDefaultSequence, isAccess, isAttunity, isCloudscape, isDB2, isDBase, isDerby, isFirebird, isH2, isHSQL, isMySQL, isODBC, isOracle, isOracle9, isPointBase, isPostgreSQL, isSQLAnywhere, isSQLServer, isSybase, isSymfoware, isTimesTen, isTimesTen7, removeAllSequences, removeSequence, setConversionManager, setDefaultSequence, setEndDelimiter, setSelectSequenceNumberQuery, setSequencePreallocationSize, setSequences, setStartDelimiter, setTableQualifier, setTimestampQuery, setUpdateSequenceQuery, toString, usesPlatformDefaultSequence

Methods inherited from class java.lang.Object

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

Constructor Detail

InformixPlatform

public InformixPlatform()

Method Detail

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 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 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 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(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(String qualifiedSeqName,
                                                        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

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