oracle.pg.rdbms.pgql

Class QueryContext

java.lang.Object

oracle.pg.rdbms.pgql.QueryContext

public class QueryContext
extends java.lang.Object

This class serves as a simple data structure to hold various attributes used during PGQL-to-SQL translation

Field Summary

Fields

Modifier and Type	Field and Description
boolean	addDefaultNull
boolean	allEdgeHash
boolean	allEdgeNL
boolean	allVertexHash
boolean	allVertexNL
int	dbVersion
boolean	edgeSetPartial
java.lang.String	graphName
int	maxPathLen
double	opgVersion
boolean	projNullProps
java.lang.String	schemaName
boolean	useDistRW
boolean	useExtdSize
boolean	useGtTab
boolean	useIso
boolean	useRW
boolean	useVdTab
boolean	useVLCol

Method Summary

Modifier and Type	Method and Description
int	getNextQbId() Increments the current query block id by 1 and returns the new value.
static QueryContext	getQueryContext(java.sql.Connection conn, java.lang.String graphName, java.lang.String graphOwner, java.lang.String geTab, java.lang.String gtTab, java.lang.String vtTab, java.lang.String vdTab) Factory method to get QueryContext instance.
static QueryContext	getQueryContext(PgqlConnection pgqlConn) Factory method to get QueryContext instance.
java.lang.String	toString() toString method for dumping contents

Methods inherited from class java.lang.Object

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

Field Detail

addDefaultNull

public boolean addDefaultNull

allEdgeHash

public boolean allEdgeHash

allEdgeNL

public boolean allEdgeNL

allVertexHash

public boolean allVertexHash

allVertexNL

public boolean allVertexNL

dbVersion

public final int dbVersion

edgeSetPartial

public boolean edgeSetPartial

graphName

public java.lang.String graphName

maxPathLen

public int maxPathLen

opgVersion

public final double opgVersion

projNullProps

public boolean projNullProps

schemaName

public java.lang.String schemaName

useDistRW

public boolean useDistRW

useExtdSize

public boolean useExtdSize

useGtTab

public boolean useGtTab

useIso

public boolean useIso

useRW

public boolean useRW

useVdTab

public boolean useVdTab

useVLCol

public boolean useVLCol

Method Detail

getNextQbId

public int getNextQbId()

Increments the current query block id by 1 and returns the new value.

Returns:

the new query block id

getQueryContext

public static QueryContext getQueryContext(java.sql.Connection conn,
                                           java.lang.String graphName,
                                           java.lang.String graphOwner,
                                           java.lang.String geTab,
                                           java.lang.String gtTab,
                                           java.lang.String vtTab,
                                           java.lang.String vdTab)

Factory method to get QueryContext instance.

Parameters:

conn - a JDBC connection

graphName - the graph name

graphOwner - the graph owner

geTab - the GE PG Schema table

gtTab - the GT PG Schema table

vtTab - the VT PG Schema table

vdTab - the VD PG Schema table

Returns:

a QueryContext instance

getQueryContext

public static QueryContext getQueryContext(PgqlConnection pgqlConn)

Factory method to get QueryContext instance.

Parameters:

pgqlConn - a PGQL connection

Returns:

a QueryContext instance

toString

public java.lang.String toString()

toString method for dumping contents

Overrides:

toString in class java.lang.Object