com.dpslink.base.jdbc

Class JDBCObjectKeyCache

java.lang.Object

com.dpslink.base.jdbc.JDBCObjectKeyCache

All Implemented Interfaces:

java.io.Serializable

public class JDBCObjectKeyCache
extends java.lang.Object
implements java.io.Serializable

Maintains a cache of JDBCObject key field names as defined by the db.[tblname].Primary or db.[tblname].Index.0 property values.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private static java.util.HashMap<java.lang.String,java.lang.String[]>	cvCache A cache of JDBCObject key field names.
private static long	serialVersionUID The class' serialization version id.

Constructor Summary

Constructors

Constructor and Description
JDBCObjectKeyCache()

Method Summary

Modifier and Type	Method and Description
static java.lang.String[]	getKeyFieldNames(JDBCObject<?> obj) Returns the key field names for a JDBCObject.
static java.lang.String[]	getKeyFieldNames(java.lang.String tblname) Returns the key field names for a table name.

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

The class' serialization version id.

See Also:

Constant Field Values

cvCache

private static java.util.HashMap<java.lang.String,java.lang.String[]> cvCache

A cache of JDBCObject key field names.

Constructor Detail

JDBCObjectKeyCache

public JDBCObjectKeyCache()

Method Detail

getKeyFieldNames

public static java.lang.String[] getKeyFieldNames(JDBCObject<?> obj)

Returns the key field names for a JDBCObject.

Parameters:

obj - (JDBCObject) The object for the desired key fields.

Returns:

String[] - The object's key field names or null if the field names could not be determined.

getKeyFieldNames

public static java.lang.String[] getKeyFieldNames(java.lang.String tblname)

Returns the key field names for a table name.

Parameters:

tblname - (String) The table name for the desired key fields.

Returns:

String[] - The table name's key field names or null if the field names could not be determined.