org.objectweb.cjdbc.controller.loadbalancer.policies.createtable
Class CreateTablePolicy

java.lang.Object
  org.objectweb.cjdbc.controller.loadbalancer.policies.createtable.CreateTablePolicy

All Implemented Interfaces:

XmlComponent

public class CreateTablePolicy

extends java.lang.Object

implements XmlComponent

Defines the policy to adopt when creating a new table.

Version:

1.0

Author:

Emmanuel Cecchet

Field Summary

static int	ALL Table is created on all backends in the backend list.
static int	RANDOM Pickup a backend name randomly in the backend list.
static int	ROUND_ROBIN Backends are chosen using a round-robin algorithm.
private java.util.HashMap	ruleList List of backends to wait for.

Fields inherited from interface org.objectweb.cjdbc.common.xml.XmlComponent

DOCTYPE_CONTROLLER, DOCTYPE_DB, XML_VERSION

Constructor Summary

CreateTablePolicy()

Method Summary

void	addRule(CreateTableRule rule) Adds a rule to this policy.
CreateTableRule	getDefaultRule() Returns the default rule or null if no default rule has been defined.
java.util.HashMap	getRuleList() Returns the rule Hashmap(table name,rule).
CreateTableRule	getTableRule(java.lang.String tableName) Gets the rule corresponding to a table name.
java.lang.String	getXml() Returns xml formatted string containing information on all rules of the system
static java.lang.String	getXmlValue(int policy) Returns the xml attribute value for the given policy

Methods inherited from class java.lang.Object

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

Field Detail

RANDOM

public static final int RANDOM

Pickup a backend name randomly in the backend list.

See Also:

Constant Field Values

ROUND_ROBIN

public static final int ROUND_ROBIN

Backends are chosen using a round-robin algorithm.

See Also:

Constant Field Values

ALL

public static final int ALL

Table is created on all backends in the backend list.

See Also:

Constant Field Values

ruleList

private java.util.HashMap ruleList

List of backends to wait for.

Constructor Detail

CreateTablePolicy

public CreateTablePolicy()

Method Detail

addRule

public void addRule(CreateTableRule rule)

Adds a rule to this policy.
If the rule's table name is null, the rule is considered as the default rule

Parameters:

rule - rule to add

getRuleList

public java.util.HashMap getRuleList()

Returns the rule Hashmap(table name,rule).

Returns:

Hashmap

getTableRule

public CreateTableRule getTableRule(java.lang.String tableName)

Gets the rule corresponding to a table name.

Parameters:

tableName - table name of the rule

Returns:

the rule or null if no specific rule has been defined for this table

getDefaultRule

public CreateTableRule getDefaultRule()

Returns the default rule or null if no default rule has been defined.

Returns:

a CreateTableRule

getXmlValue

public static final java.lang.String getXmlValue(int policy)

Returns the xml attribute value for the given policy

Parameters:

policy - the policy to convert

Returns:

xml attribute value or "" if not found

getXml

public java.lang.String getXml()

Returns xml formatted string containing information on all rules of the system

Specified by:

getXml in interface XmlComponent

Returns:

xml formatted string.