Raccoon.RM
Class ResourceManager

java.lang.Object
  Raccoon.RM.ResourceManager

public class ResourceManager

extends java.lang.Object

DB2LoadDriver : class that keep track of all the resources, such as mapping links, known peers in the network, information for host node

Author:

Qi Zhong

Field Summary

static java.util.HashMap	attrMappingHashTable
com.touchgraph.graphlayout.graphelements.GraphEltSet	completeSet
DBConnection	dbConnection
PVNode	myNode
NetModuleImpl	netModule
static int	tmpInt
static java.lang.String	tmpString

Constructor Summary

ResourceManager(PVNode node)

Method Summary

void	createMapping(java.lang.String nodeID)
QueryAnswer	executeQuery(java.lang.String sqlStmt)
PVInstance	executeSFW(java.lang.String sqlStmt)
PVInstance	executeSFW(java.lang.String nodeName, java.lang.String sqlStmt)
java.util.HashMap	getAttrMappingHashTable()
java.lang.String	getAttrType(java.lang.String nodeName, java.lang.String relName, java.lang.String attrName)
PVInstance	getInstance(int index)
PVInstance	getInstance(java.lang.String relationName)
PVNode	getMyNode()
java.lang.String	getNodeID()
java.lang.String	getNodeID(java.lang.String nodeName)
java.lang.String	getNodeName()
PVRelation	getRelation(int index)
PVRelation	getRelation(PVSchema schema)
PVRelation	getRelation(java.lang.String relationName)
int	getRelationNum()
PVSchema	getSchema(int index)
PVSchema	getSchema(java.lang.String relationName)
boolean	isAttrExist(java.lang.String nodeName, java.lang.String relName, java.lang.String attrName)
boolean	isMyNodeID(java.lang.String nodeID)
boolean	isMyNodeName(java.lang.String nodeName)
boolean	isNodeExist(java.lang.String nodeName)
boolean	isRelExist(java.lang.String nodeName, java.lang.String relName)
void	print(java.lang.String str)
void	rememberMapping(PVSchema searchTableSchema, PVSchema resultTableSchema, java.util.Vector mappingResult)
void	retrieveMyNodeSchema() This method retrives the schema for MyNode.
PVInstance	rmExecuteSFW(java.lang.String sqlStmt)
com.touchgraph.graphlayout.graphelements.GraphEltSet	searchNeighbor()
com.touchgraph.graphlayout.graphelements.GraphEltSet	searchNeighbor(java.lang.String nodeID)
void	setDatabse(java.lang.String systemName, java.lang.String newHost, java.lang.String newPort, java.lang.String newUser, java.lang.String newPasswd, java.lang.String newDBName)
void	setNetModule(NetModuleImpl newNetModule)
void	storeNeighbor(com.touchgraph.graphlayout.graphelements.GraphEltSet eltSet)

Methods inherited from class java.lang.Object

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

Field Detail

netModule

public NetModuleImpl netModule

completeSet

public com.touchgraph.graphlayout.graphelements.GraphEltSet completeSet

myNode

public PVNode myNode

dbConnection

public DBConnection dbConnection

tmpString

public static java.lang.String tmpString

tmpInt

public static int tmpInt

attrMappingHashTable

public static java.util.HashMap attrMappingHashTable

Constructor Detail

ResourceManager

public ResourceManager(PVNode node)

Method Detail

setNetModule

public void setNetModule(NetModuleImpl newNetModule)

setDatabse

public void setDatabse(java.lang.String systemName,
                       java.lang.String newHost,
                       java.lang.String newPort,
                       java.lang.String newUser,
                       java.lang.String newPasswd,
                       java.lang.String newDBName)

executeQuery

public QueryAnswer executeQuery(java.lang.String sqlStmt)
                         throws java.sql.SQLException

Throws:

java.sql.SQLException

executeSFW

public PVInstance executeSFW(java.lang.String sqlStmt)
                      throws java.sql.SQLException

Throws:

java.sql.SQLException

rmExecuteSFW

public PVInstance rmExecuteSFW(java.lang.String sqlStmt)
                        throws java.sql.SQLException

Throws:

java.sql.SQLException

executeSFW

public PVInstance executeSFW(java.lang.String nodeName,
                             java.lang.String sqlStmt)
                      throws java.sql.SQLException,
                             PVException

Throws:

java.sql.SQLException

PVException

retrieveMyNodeSchema

public void retrieveMyNodeSchema()

This method retrives the schema for MyNode. It is called at the first time when the program runs.

getRelationNum

public int getRelationNum()

Returns:

number of relations in this local node

getSchema

public PVSchema getSchema(int index)

Returns:

the schema of the index'th relation in this local node

getInstance

public PVInstance getInstance(int index)

Returns:

the relation instance of the index'th relation in this local node

getRelation

public PVRelation getRelation(int index)

storeNeighbor

public void storeNeighbor(com.touchgraph.graphlayout.graphelements.GraphEltSet eltSet)

searchNeighbor

public com.touchgraph.graphlayout.graphelements.GraphEltSet searchNeighbor(java.lang.String nodeID)

Parameters:

nodeID -

Returns:

RM.NodeInfoArray

searchNeighbor

public com.touchgraph.graphlayout.graphelements.GraphEltSet searchNeighbor()

Returns:

RM.NodeInfoArray

createMapping

public void createMapping(java.lang.String nodeID)

Parameters:

nodeID -

getSchema

public PVSchema getSchema(java.lang.String relationName)

getInstance

public PVInstance getInstance(java.lang.String relationName)

getRelation

public PVRelation getRelation(java.lang.String relationName)

getRelation

public PVRelation getRelation(PVSchema schema)

getNodeName

public java.lang.String getNodeName()

getNodeID

public java.lang.String getNodeID()

isMyNodeName

public boolean isMyNodeName(java.lang.String nodeName)

isMyNodeID

public boolean isMyNodeID(java.lang.String nodeID)

getNodeID

public java.lang.String getNodeID(java.lang.String nodeName)
                           throws PVException

Throws:

PVException

getAttrType

public java.lang.String getAttrType(java.lang.String nodeName,
                                    java.lang.String relName,
                                    java.lang.String attrName)
                             throws PVException

Throws:

PVException

isAttrExist

public boolean isAttrExist(java.lang.String nodeName,
                           java.lang.String relName,
                           java.lang.String attrName)
                    throws PVException

Throws:

PVException

isNodeExist

public boolean isNodeExist(java.lang.String nodeName)
                    throws PVException

Throws:

PVException

isRelExist

public boolean isRelExist(java.lang.String nodeName,
                          java.lang.String relName)
                   throws PVException

Throws:

PVException

rememberMapping

public void rememberMapping(PVSchema searchTableSchema,
                            PVSchema resultTableSchema,
                            java.util.Vector mappingResult)

getMyNode

public PVNode getMyNode()

getAttrMappingHashTable

public java.util.HashMap getAttrMappingHashTable()

print

public void print(java.lang.String str)