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java.lang.Objectorg.apache.torque.adapter.AbstractAdapter
org.apache.torque.adapter.PostgresAdapter
public class PostgresAdapter
This is used to connect to PostgresQL databases. http://www.postgresql.org/
Field Summary |
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Fields inherited from interface org.apache.torque.adapter.Adapter |
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ADAPTER_KEY, AUTODETECT_ADAPTER, DRIVER_KEY |
Constructor Summary | |
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protected |
PostgresAdapter()
Empty constructor. |
Method Summary | |
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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. |
String |
getIDMethodSQL(Object name)
Returns SQL used to get the most recently inserted primary key. |
IDMethod |
getIDMethodType()
Returns the constant from the IDMethod interface denoting which
type of primary key generation method this type of RDBMS uses. |
String |
ignoreCase(String in)
This method is used to ignore case. |
void |
lockTable(Connection con,
String table)
Locks the specified table. |
boolean |
supportsNativeLimit()
Return true for PostgreSQL |
boolean |
supportsNativeOffset()
Return true for PostgreSQL |
String |
toUpperCase(String in)
This method is used to ignore case. |
void |
unlockTable(Connection con,
String table)
Unlocks the specified table. |
boolean |
useIlike()
Whether ILIKE should be used for case insensitive like clauses. |
Methods inherited from class org.apache.torque.adapter.AbstractAdapter |
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escapeText, getStringDelimiter, getUpdateLockClause, ignoreCaseInOrderBy, useEscapeClauseForLike |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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protected PostgresAdapter()
Method Detail |
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public String toUpperCase(String in)
toUpperCase
in interface Adapter
toUpperCase
in class AbstractAdapter
in
- The string to transform to upper case.
public String ignoreCase(String in)
ignoreCase
in interface Adapter
ignoreCase
in class AbstractAdapter
in
- The string whose case to ignore.
public IDMethod getIDMethodType()
AbstractAdapter
IDMethod
interface denoting which
type of primary key generation method this type of RDBMS uses.
getIDMethodType
in interface Adapter
getIDMethodType
in class AbstractAdapter
Adapter.getIDMethodType()
public String getIDMethodSQL(Object name)
AbstractAdapter
null
.
getIDMethodSQL
in interface Adapter
getIDMethodSQL
in class AbstractAdapter
name
- The name of the field (should be of type
String
).
Adapter.getIDMethodSQL(Object)
public void lockTable(Connection con, String table) throws SQLException
lockTable
in interface Adapter
lockTable
in class AbstractAdapter
con
- The JDBC connection to use.table
- The name of the table to lock.
SQLException
- No Statement could be created or executed.public void unlockTable(Connection con, String table) throws SQLException
unlockTable
in interface Adapter
unlockTable
in class AbstractAdapter
con
- The JDBC connection to use.table
- The name of the table to unlock.
SQLException
- No Statement could be created or executed.public boolean supportsNativeLimit()
supportsNativeLimit
in interface Adapter
supportsNativeLimit
in class AbstractAdapter
AbstractAdapter.supportsNativeLimit()
public boolean supportsNativeOffset()
supportsNativeOffset
in interface Adapter
supportsNativeOffset
in class AbstractAdapter
AbstractAdapter.supportsNativeOffset()
public void generateLimits(Query query, long offset, int limit)
generateLimits
in interface Adapter
generateLimits
in class AbstractAdapter
query
- The query to modifyoffset
- the offset Valuelimit
- the limit Valuepublic boolean useIlike()
useIlike
in interface Adapter
useIlike
in class AbstractAdapter
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