org.hibernate.dialect
Class Oracle9iDialect

java.lang.Object
  org.hibernate.dialect.Dialect
      org.hibernate.dialect.Oracle8iDialect
          org.hibernate.dialect.Oracle9iDialect

Direct Known Subclasses:

Oracle10gDialect

public class Oracle9iDialect
extends Oracle8iDialect

A dialect for Oracle 9i databases.

Unlike the older (deprecated) {@Link Oracl9Dialect), this version specifies to not use "ANSI join syntax" because 9i does not seem to properly handle it in all cases.

Author:

Steve Ebersole

Field Summary

Fields inherited from class org.hibernate.dialect.Dialect

CLOSED_QUOTE, DEFAULT_BATCH_SIZE, NO_BATCH, QUOTE

Constructor Summary

Oracle9iDialect()

Method Summary

CaseFragment	createCaseFragment() Map case support to the Oracle DECODE function.
String	getCurrentTimestampSelectString() Retrieve the command used to retrieve the current timestammp from the database.
String	getCurrentTimestampSQLFunctionName() The name of the database-specific SQL function for retrieving the current timestamp.
String	getLimitString(String sql, boolean hasOffset) Apply s limit clause to the query.
String	getSelectClauseNullString(int sqlType) Given a Types type code, determine an appropriate null value to use in a select clause.
protected void	registerCharacterTypeMappings()
protected void	registerDateTimeTypeMappings()

Methods inherited from class org.hibernate.dialect.Oracle8iDialect

bindLimitParametersInReverseOrder, createOuterJoinFragment, dropConstraints, dropTemporaryTableAfterUse, forUpdateOfColumns, generateTemporaryTableName, getAddColumnString, getBasicSelectClauseNullString, getCascadeConstraintsString, getCreateSequenceString, getCreateTemporaryTablePostfix, getCreateTemporaryTableString, getDropSequenceString, getForUpdateNowaitString, getForUpdateNowaitString, getForUpdateString, getQuerySequencesString, getResultSet, getSelectGUIDString, getSelectSequenceNextValString, getSequenceNextValString, getViolatedConstraintNameExtracter, isCurrentTimestampSelectStringCallable, registerDefaultProperties, registerFunctions, registerLargeObjectTypeMappings, registerNumericTypeMappings, registerResultSetOutParameter, registerReverseHibernateTypeMappings, supportsCommentOn, supportsCurrentTimestampSelection, supportsEmptyInList, supportsExistsInSelect, supportsLimit, supportsPooledSequences, supportsSequences, supportsTemporaryTables, supportsUnionAll, useMaxForLimit

Methods inherited from class org.hibernate.dialect.Dialect

appendIdentitySelectToInsert, appendLockHint, applyLocksToSql, areStringComparisonsCaseInsensitive, bindLimitParametersFirst, buildSQLExceptionConverter, closeQuote, doesReadCommittedCauseWritersToBlockReaders, doesRepeatableReadCauseReadersToBlockWriters, getAddForeignKeyConstraintString, getAddPrimaryKeyConstraintString, getCastTypeName, getColumnComment, getCreateMultisetTableString, getCreateSequenceString, getCreateSequenceStrings, getCreateSequenceStrings, getCreateTableString, getDefaultProperties, getDialect, getDialect, getDropForeignKeyString, getDropSequenceStrings, getForUpdateString, getForUpdateString, getFunctions, getHibernateTypeName, getHibernateTypeName, getIdentityColumnString, getIdentityColumnString, getIdentityInsertString, getIdentitySelectString, getIdentitySelectString, getKeywords, getLimitString, getLockingStrategy, getLowercaseFunction, getMaxAliasLength, getNativeIdentifierGeneratorClass, getNoColumnsInsertString, getNullColumnString, getTableComment, getTableTypeString, getTypeName, getTypeName, hasAlterTable, hasDataTypeInIdentityColumn, hasSelfReferentialForeignKeyBug, openQuote, performTemporaryTableDDLInIsolation, qualifyIndexName, quote, registerColumnType, registerColumnType, registerFunction, registerHibernateType, registerHibernateType, registerKeyword, supportsBindAsCallableArgument, supportsCascadeDelete, supportsCircularCascadeDeleteConstraints, supportsColumnCheck, supportsExpectedLobUsagePattern, supportsIdentityColumns, supportsIfExistsAfterTableName, supportsIfExistsBeforeTableName, supportsInsertSelectIdentity, supportsLimitOffset, supportsLobValueChangePropogation, supportsNotNullUnique, supportsOuterJoinForUpdate, supportsParametersInInsertSelect, supportsResultSetPositionQueryMethodsOnForwardOnlyCursor, supportsRowValueConstructorSyntax, supportsRowValueConstructorSyntaxInInList, supportsSubqueryOnMutatingTable, supportsSubselectAsInPredicateLHS, supportsTableCheck, supportsUnboundedLobLocatorMaterialization, supportsUnique, supportsUniqueConstraintInCreateAlterTable, supportsVariableLimit, toBooleanValueString, toString, transformSelectString, useInputStreamToInsertBlob

Methods inherited from class java.lang.Object

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

Constructor Detail

Oracle9iDialect

public Oracle9iDialect()

Method Detail

registerCharacterTypeMappings

protected void registerCharacterTypeMappings()

Overrides:

registerCharacterTypeMappings in class Oracle8iDialect

registerDateTimeTypeMappings

protected void registerDateTimeTypeMappings()

Overrides:

registerDateTimeTypeMappings in class Oracle8iDialect

createCaseFragment

public CaseFragment createCaseFragment()

Description copied from class: Oracle8iDialect

Map case support to the Oracle DECODE function. Oracle did not add support for CASE until 9i.

Overrides:

createCaseFragment in class Oracle8iDialect

Returns:

The oracle CASE -> DECODE fragment

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 caluses 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 Oracle8iDialect

Parameters:

sql - The query to which to apply the limit.

hasOffset - Is the query requesting an offset?

Returns:

the modified SQL

getSelectClauseNullString

public String getSelectClauseNullString(int sqlType)

Description copied from class: Dialect

Given a Types type code, determine an appropriate null value to use in a select clause.

One thing to consider here is that certain databases might require proper casting for the nulls here since the select here will be part of a UNION/UNION ALL.

Overrides:

getSelectClauseNullString in class Oracle8iDialect

Parameters:

sqlType - The Types type code.

Returns:

The appropriate select clause value fragment.

getCurrentTimestampSelectString

public String getCurrentTimestampSelectString()

Description copied from class: Dialect

Retrieve the command used to retrieve the current timestammp from the database.

Overrides:

getCurrentTimestampSelectString in class Oracle8iDialect

Returns:

The command.

getCurrentTimestampSQLFunctionName

public String getCurrentTimestampSQLFunctionName()

Description copied from class: Dialect

The name of the database-specific SQL function for retrieving the current timestamp.

Overrides:

getCurrentTimestampSQLFunctionName in class Oracle8iDialect

Returns:

The function name.