org.apache.lucene.store.jdbc.dialect
Class OracleDialect

java.lang.Object
  org.apache.lucene.store.jdbc.dialect.Dialect
      org.apache.lucene.store.jdbc.dialect.OracleDialect

Direct Known Subclasses:

Oracle9Dialect

public class OracleDialect
extends Dialect

An Oracle dialect. Works for Oracle 9 and above.

Author:

kimchy

Constructor Summary

OracleDialect()

Method Summary

String	getBitType() The database BIT type.
String	getBlobType(long length) The database blob type for the given length.
String	getCascadeConstraintsString() Completely optional cascading drop clause
String	getCurrentTimestampFunction() The database current timestamp function that is used with several sql updates.
String	getCurrentTimestampSelectString() The database current time stamp select query.
String	getForUpdateNowaitString() Does this dialect support the Oracle-style FOR UPDATE NOWAIT syntax?
String	getNumberType() The database number type.
String	getTimestampType() The database TIMESTAMP type.
String	getVarcharType(int length) The database varchar type for the given length.
boolean	isCurrentTimestampSelectStringCallable() If the current timestamp select queyr is a callable query or not.
String	sqlTableExists(String catalog, String schemaName) If the dialect support a special query to check if a table exists, the actual sql that is used to perform it.
boolean	supportsCurrentTimestampSelection() Does the database supports a query for the current timestamp.
boolean	supportsForUpdate() Oracle supports select ... for update.
boolean	supportsTableExists() Oracle supports if table exists queries.
boolean	supportTransactionalScopedBlobs() Oracle supports transactional scopes blobs.

Methods inherited from class org.apache.lucene.store.jdbc.dialect.Dialect

closeBlobSelectQuote, closeQuote, getForUpdateString, getTableTypeString, openBlobSelectQuote, openQuote, processSettings, supportsIfExistsAfterTableName, supportsIfExistsBeforeTableName, useExistsBeforeInsertLock, useInputStreamToInsertBlob

Methods inherited from class java.lang.Object

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

Constructor Detail

OracleDialect

public OracleDialect()

Method Detail

supportTransactionalScopedBlobs

public boolean supportTransactionalScopedBlobs()

Oracle supports transactional scopes blobs.

Overrides:

supportTransactionalScopedBlobs in class Dialect

supportsForUpdate

public boolean supportsForUpdate()

Oracle supports select ... for update.

Specified by:

supportsForUpdate in class Dialect

supportsTableExists

public boolean supportsTableExists()

Oracle supports if table exists queries.

Overrides:

supportsTableExists in class Dialect

sqlTableExists

public String sqlTableExists(String catalog,
                             String schemaName)

Description copied from class: Dialect

If the dialect support a special query to check if a table exists, the actual sql that is used to perform it. Defaults to throw an Unsupported excetion (see Dialect.supportsTableExists().

Overrides:

sqlTableExists in class Dialect

getCascadeConstraintsString

public String getCascadeConstraintsString()

Description copied from class: Dialect

Completely optional cascading drop clause

Overrides:

getCascadeConstraintsString in class Dialect

getForUpdateNowaitString

public String getForUpdateNowaitString()

Description copied from class: Dialect

Does this dialect support the Oracle-style FOR UPDATE NOWAIT syntax? Defaults to Dialect.getForUpdateString().

Overrides:

getForUpdateNowaitString in class Dialect

supportsCurrentTimestampSelection

public boolean supportsCurrentTimestampSelection()

Description copied from class: Dialect

Does the database supports a query for the current timestamp. Defaults to false.

Overrides:

supportsCurrentTimestampSelection in class Dialect

getCurrentTimestampSelectString

public String getCurrentTimestampSelectString()

Description copied from class: Dialect

The database current time stamp select query.

Overrides:

getCurrentTimestampSelectString in class Dialect

isCurrentTimestampSelectStringCallable

public boolean isCurrentTimestampSelectStringCallable()

Description copied from class: Dialect

If the current timestamp select queyr is a callable query or not.

Overrides:

isCurrentTimestampSelectStringCallable in class Dialect

getVarcharType

public String getVarcharType(int length)

Description copied from class: Dialect

The database varchar type for the given length. The length is in chars.

Specified by:

getVarcharType in class Dialect

getBlobType

public String getBlobType(long length)

Description copied from class: Dialect

The database blob type for the given length. The length is in KB.

Specified by:

getBlobType in class Dialect

getNumberType

public String getNumberType()

Description copied from class: Dialect

The database number type.

Specified by:

getNumberType in class Dialect

getTimestampType

public String getTimestampType()

Description copied from class: Dialect

The database TIMESTAMP type.

Specified by:

getTimestampType in class Dialect

getCurrentTimestampFunction

public String getCurrentTimestampFunction()

Description copied from class: Dialect

The database current timestamp function that is used with several sql updates.

Specified by:

getCurrentTimestampFunction in class Dialect

getBitType

public String getBitType()

Description copied from class: Dialect

The database BIT type.

Specified by:

getBitType in class Dialect