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Hibernate 3.2.3 正式版 API 英文文档
OracleDialect (Hibernate API Documentation) - Hibernate 3.2.3 正式版 API 英文文档
org.hibernate.dialect
Class OracleDialect
java.lang.Object
org.hibernate.dialect.Dialect
org.hibernate.dialect.Oracle9Dialect
org.hibernate.dialect.OracleDialect
- public class OracleDialect
- extends Oracle9Dialect
An SQL dialect for Oracle, compatible with Oracle 8.
- Author:
- Gavin King
| Methods inherited from class org.hibernate.dialect.Oracle9Dialect |
bindLimitParametersInReverseOrder, dropConstraints, dropTemporaryTableAfterUse, forUpdateOfColumns, generateTemporaryTableName, getAddColumnString, getCascadeConstraintsString, getCreateSequenceString, getCreateTemporaryTablePostfix, getCreateTemporaryTableString, getDropSequenceString, getForUpdateNowaitString, getForUpdateNowaitString, getForUpdateString, getQuerySequencesString, getResultSet, getSelectGUIDString, getSelectSequenceNextValString, getSequenceNextValString, getViolatedConstraintNameExtracter, isCurrentTimestampSelectStringCallable, registerResultSetOutParameter, 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 |
OracleDialect
public OracleDialect()
createOuterJoinFragment
public JoinFragment createOuterJoinFragment()
- Description copied from class:
Dialect
- Create a
JoinFragment strategy responsible
for handling this dialect's variations in how joins are handled.
- Overrides:
createOuterJoinFragment in class Dialect
- Returns:
- This dialect's
JoinFragment strategy.
createCaseFragment
public CaseFragment createCaseFragment()
- Description copied from class:
Dialect
- Create a
CaseFragment strategy responsible
for handling this dialect's variations in how CASE statements are
handled.
- Overrides:
createCaseFragment in class Dialect
- Returns:
- This dialect's
CaseFragment strategy.
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 Oracle9Dialect
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 Dialect
- 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 Oracle9Dialect
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 Dialect
- Returns:
- The function name.
