Package org.apache.torque.adapter
Klasse HsqldbAdapter
java.lang.Object
org.apache.torque.adapter.AbstractAdapter
org.apache.torque.adapter.HsqldbAdapter
- Alle implementierten Schnittstellen:
Serializable
,Adapter
This is used to connect to Hsqldb databases.
http://hsqldb.org/
- Version:
- $Id: HsqldbAdapter.java 1848527 2018-12-09 16:27:22Z tv $
- Autor:
- Christopher Elkins
- Siehe auch:
-
Feldübersicht
Von Schnittstelle geerbte Felder org.apache.torque.adapter.Adapter
ADAPTER_KEY, AUTODETECT_ADAPTER, DRIVER_KEY
-
Konstruktorübersicht
Konstruktoren -
Methodenübersicht
Modifizierer und TypMethodeBeschreibungboolean
This method is for the SqlExpression.quoteAndEscape rules.void
generateLimits
(Query query, long offset, int limit) Generate a LIMIT limit OFFSET offset clause if offset > 0 or an LIMIT limit clause if limit is > 0 and offset is 0.getIDMethodSQL
(Object obj) Returns SQL used to get the most recently inserted primary key.Returns the constant from theIDMethod
interface denoting which type of primary key generation method this type of RDBMS uses.ignoreCase
(String in) This method is used to ignore case.void
lockTable
(Connection con, String table) Locks the specified table.toUpperCase
(String in) This method is used to ignore case.void
unlockTable
(Connection con, String table) Unlocks the specified table.boolean
Whether an escape clause in like should be used.Von Klasse geerbte Methoden org.apache.torque.adapter.AbstractAdapter
getStringDelimiter, getUpdateLockClause, ignoreCaseInOrderBy, setCapabilities, supportsNativeLimit, supportsNativeOffset, useGetGeneratedKeys, useIlike, useMinusForExcept
-
Konstruktordetails
-
HsqldbAdapter
protected HsqldbAdapter()Constructor.
-
-
Methodendetails
-
toUpperCase
This method is used to ignore case.- Angegeben von:
toUpperCase
in SchnittstelleAdapter
- Angegeben von:
toUpperCase
in KlasseAbstractAdapter
- Parameter:
in
- The string to transform to upper case.- Gibt zurück:
- The upper case string.
-
ignoreCase
This method is used to ignore case.- Angegeben von:
ignoreCase
in SchnittstelleAdapter
- Angegeben von:
ignoreCase
in KlasseAbstractAdapter
- Parameter:
in
- The string whose case to ignore.- Gibt zurück:
- The string in a case that can be ignored.
-
getIDMethodType
Beschreibung aus Klasse kopiert:AbstractAdapter
Returns the constant from theIDMethod
interface denoting which type of primary key generation method this type of RDBMS uses.- Angegeben von:
getIDMethodType
in SchnittstelleAdapter
- Angegeben von:
getIDMethodType
in KlasseAbstractAdapter
- Gibt zurück:
- IDMethod constant
- Siehe auch:
-
getIDMethodSQL
Beschreibung aus Klasse kopiert:AbstractAdapter
Returns SQL used to get the most recently inserted primary key. Databases which have no support for this returnnull
.- Angegeben von:
getIDMethodSQL
in SchnittstelleAdapter
- Angegeben von:
getIDMethodSQL
in KlasseAbstractAdapter
- Parameter:
obj
- Information used for key generation.- Gibt zurück:
- The most recently inserted database key.
- Siehe auch:
-
lockTable
Locks the specified table.- Angegeben von:
lockTable
in SchnittstelleAdapter
- Angegeben von:
lockTable
in KlasseAbstractAdapter
- Parameter:
con
- The JDBC connection to use.table
- The name of the table to lock.- Löst aus:
SQLException
- No Statement could be created or executed.
-
unlockTable
Unlocks the specified table.- Angegeben von:
unlockTable
in SchnittstelleAdapter
- Angegeben von:
unlockTable
in KlasseAbstractAdapter
- Parameter:
con
- The JDBC connection to use.table
- The name of the table to unlock.- Löst aus:
SQLException
- No Statement could be created or executed.
-
escapeText
public boolean escapeText()This method is for the SqlExpression.quoteAndEscape rules. The rule is, any string in a SqlExpression with a BACKSLASH will either be changed to "\\" or left as "\".- Angegeben von:
escapeText
in SchnittstelleAdapter
- Setzt außer Kraft:
escapeText
in KlasseAbstractAdapter
- Gibt zurück:
- false.
-
useEscapeClauseForLike
public boolean useEscapeClauseForLike()Whether an escape clause in like should be used. Example : select * from AUTHOR where AUTHOR.NAME like '\_%' ESCAPE '\'; HSQLDB needs this, so this implementation always returnstrue
.- Angegeben von:
useEscapeClauseForLike
in SchnittstelleAdapter
- Setzt außer Kraft:
useEscapeClauseForLike
in KlasseAbstractAdapter
- Gibt zurück:
- whether the escape clause should be appended or not.
-
generateLimits
Generate a LIMIT limit OFFSET offset clause if offset > 0 or an LIMIT limit clause if limit is > 0 and offset is 0.- Angegeben von:
generateLimits
in SchnittstelleAdapter
- Setzt außer Kraft:
generateLimits
in KlasseAbstractAdapter
- Parameter:
query
- The query to modifyoffset
- the offset Valuelimit
- the limit Value
-