oracle.pg.rdbms.pgql

Class TraversalStruct

java.lang.Object

oracle.pg.rdbms.pgql.TraversalStruct

public class TraversalStruct
extends java.lang.Object

Series of Maps used to generate SQL for a PGQL query

Constructor Summary

Constructors

Constructor and Description
TraversalStruct() Constructor

Method Summary

Modifier and Type	Method and Description
void	addAnyDirectedAlias(java.lang.String alias) Adds an alias to the set of any-directed aliases
void	clearStruct() Clears Maps
boolean	containsEdgeJoinVar(java.lang.String varName) Checks if the given var is in the Edge-Join Map
boolean	containsPropAlias(ValuePair varPropPair) Checks if the given var-prop pair is in Prop-Alias Map
boolean	containsVarAlias(java.lang.String varName) Checks if the given var is in the Var-Alias Map
java.util.Set<java.lang.Integer>	getAliasModifyList(java.lang.String alias) Returns the list of positions for modify operators where given alias appears
java.util.Set<java.util.Map.Entry<java.lang.String,java.util.List<int[]>>>	getAllEdgeJoins() Returns the entry set of Edge-Join Map
java.util.Set<java.util.Map.Entry<java.lang.String,java.lang.String[]>>	getAllTableNamesForIds() Returns the entry set of ID-Table Map
java.util.Set<java.util.Map.Entry<java.lang.String,java.lang.String[]>>	getAllVarAliases() Returns the entry set of Var-Alias Map
java.util.Set<java.util.Map.Entry<java.lang.String,java.util.Set<java.lang.String>>>	getAllVarProps() Returns the entry set of Var-Prop Map
java.util.List<java.lang.String>	getEdgeAliases(java.lang.String vtTab) Returns all the edge table aliases in ID-Table Map
java.util.List<int[]>	getEdgeJoin(java.lang.String varName) Gets the edge join list that corresponds to given var
java.lang.String	getPropAlias(ValuePair varPropPair) Returns the alias corresponding to given var-prop pair in Prop-Alias Map
java.lang.String[]	getTableNameForId(java.lang.String id) Returns the table-prop pair corresponding to given id in ID-Table Map
java.lang.String[]	getVarAlias(java.lang.String varName) Returns the alias-column pair corresponding to given var in Var-Alias Map
java.lang.String	getVarId(java.lang.String varName) Returns the constant Id corresponding to given var in varIdMap
java.util.Set<java.lang.String>	getVarProps(java.lang.String varName) Returns the set of properties corresponding to given var in Var-Prop Map
java.util.List<java.lang.String>	getVertexAliases(java.lang.String gtTab) Returns all the vertex table aliases in ID-Table Map
boolean	isAnyDirectedAlias(java.lang.String alias) Checks if given alias belongs to the set of any-directed aliases
boolean	isModifyTableAlias(java.lang.String alias) Checks if given alias is for a modify
void	putAliasModifyList(java.lang.String alias, java.util.Set<java.lang.Integer> modifyList) Puts a list of positions of modify operators where the given alias is used
void	putEdgeJoin(java.lang.String varName, java.util.List<int[]> joinList) Puts an edge join list in the Edge-Join Map
void	putPropAlias(ValuePair varPropPair, java.lang.String alias) Puts an alias in Prop-Alias Map
void	putTableNameForId(java.lang.String id, java.lang.String[] tableNameAndProp) Puts a table-prop pair in ID-Table Map
void	putVarAlias(java.lang.String varName, java.lang.String[] alias) Puts an alias-column pair in Var-Alias Map
void	putVarId(java.lang.String varName, java.lang.String id) Puts a constant Id in varIdMap
void	putVarProp(java.lang.String varName, java.util.Set<java.lang.String> props) Puts a set of properties in Var-Prop Map
java.lang.String	toString() toString() method

Methods inherited from class java.lang.Object

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

Constructor Detail

TraversalStruct

public TraversalStruct()

Constructor

Method Detail

addAnyDirectedAlias

public void addAnyDirectedAlias(java.lang.String alias)

Adds an alias to the set of any-directed aliases

Parameters:

alias - The alias to add

clearStruct

public void clearStruct()

Clears Maps

containsEdgeJoinVar

public boolean containsEdgeJoinVar(java.lang.String varName)

Checks if the given var is in the Edge-Join Map

Parameters:

varName - The var to check

Returns:

true if this var name is in Edge-Join Map

containsPropAlias

public boolean containsPropAlias(ValuePair varPropPair)

Checks if the given var-prop pair is in Prop-Alias Map

Parameters:

varPropPair - The var-prop pair to check

Returns:

true if this var-prop pair is in Prop-Alias Map

containsVarAlias

public boolean containsVarAlias(java.lang.String varName)

Checks if the given var is in the Var-Alias Map

Parameters:

varName - The var to check

Returns:

true if this var name is in Var-Alias Map

getAliasModifyList

public java.util.Set<java.lang.Integer> getAliasModifyList(java.lang.String alias)

Returns the list of positions for modify operators where given alias appears

Parameters:

alias - The alias to check

Returns:

The list of positions

getAllEdgeJoins

public java.util.Set<java.util.Map.Entry<java.lang.String,java.util.List<int[]>>> getAllEdgeJoins()

Returns the entry set of Edge-Join Map

Returns:

The entry set

getAllTableNamesForIds

public java.util.Set<java.util.Map.Entry<java.lang.String,java.lang.String[]>> getAllTableNamesForIds()

Returns the entry set of ID-Table Map

Returns:

The entry set

getAllVarAliases

public java.util.Set<java.util.Map.Entry<java.lang.String,java.lang.String[]>> getAllVarAliases()

Returns the entry set of Var-Alias Map

Returns:

The entry set

getAllVarProps

public java.util.Set<java.util.Map.Entry<java.lang.String,java.util.Set<java.lang.String>>> getAllVarProps()

Returns the entry set of Var-Prop Map

Returns:

The entry set

getEdgeAliases

public java.util.List<java.lang.String> getEdgeAliases(java.lang.String vtTab)

Returns all the edge table aliases in ID-Table Map

Parameters:

vtTab - The name of the vertex table

Returns:

The edge table aliases

getEdgeJoin

public java.util.List<int[]> getEdgeJoin(java.lang.String varName)

Gets the edge join list that corresponds to given var

Parameters:

varName - The name of the var

Returns:

The join list

getPropAlias

public java.lang.String getPropAlias(ValuePair varPropPair)

Returns the alias corresponding to given var-prop pair in Prop-Alias Map

Parameters:

varPropPair - The var-prop pair

Returns:

The alias

getTableNameForId

public java.lang.String[] getTableNameForId(java.lang.String id)

Returns the table-prop pair corresponding to given id in ID-Table Map

Parameters:

id - The id

Returns:

The table-prop pair

getVarAlias

public java.lang.String[] getVarAlias(java.lang.String varName)

Returns the alias-column pair corresponding to given var in Var-Alias Map

Parameters:

varName - The var name

Returns:

The alias-column pair

getVarId

public java.lang.String getVarId(java.lang.String varName)

Returns the constant Id corresponding to given var in varIdMap

Parameters:

varName - The name of the var

Returns:

The constant Id

getVarProps

public java.util.Set<java.lang.String> getVarProps(java.lang.String varName)

Returns the set of properties corresponding to given var in Var-Prop Map

Parameters:

varName - The var name

Returns:

The set of properties

getVertexAliases

public java.util.List<java.lang.String> getVertexAliases(java.lang.String gtTab)

Returns all the vertex table aliases in ID-Table Map

Parameters:

gtTab - The name of the edge table

Returns:

The vertex table aliases

isAnyDirectedAlias

public boolean isAnyDirectedAlias(java.lang.String alias)

Checks if given alias belongs to the set of any-directed aliases

Parameters:

alias - The alias to verify

Returns:

true if the alias corresponds to an any-directed edge

isModifyTableAlias

public boolean isModifyTableAlias(java.lang.String alias)

Checks if given alias is for a modify

Parameters:

alias - The alias to check

Returns:

true if this is a modify alias

putAliasModifyList

public void putAliasModifyList(java.lang.String alias,
                               java.util.Set<java.lang.Integer> modifyList)

Puts a list of positions of modify operators where the given alias is used

Parameters:

alias - The alias

modifyList - The list of positions

putEdgeJoin

public void putEdgeJoin(java.lang.String varName,
                        java.util.List<int[]> joinList)

Puts an edge join list in the Edge-Join Map

Parameters:

varName - The var name

joinList - The join list

putPropAlias

public void putPropAlias(ValuePair varPropPair,
                         java.lang.String alias)

Puts an alias in Prop-Alias Map

Parameters:

varPropPair - The var-prop pair

alias - The alias

putTableNameForId

public void putTableNameForId(java.lang.String id,
                              java.lang.String[] tableNameAndProp)

Puts a table-prop pair in ID-Table Map

Parameters:

id - The id

tableNameAndProp - The table-prop pair

putVarAlias

public void putVarAlias(java.lang.String varName,
                        java.lang.String[] alias)

Puts an alias-column pair in Var-Alias Map

Parameters:

varName - The var name

alias - The alias-column pair

putVarId

public void putVarId(java.lang.String varName,
                     java.lang.String id)

Puts a constant Id in varIdMap

Parameters:

varName - The name of the var

id - The constant Id

putVarProp

public void putVarProp(java.lang.String varName,
                       java.util.Set<java.lang.String> props)

Puts a set of properties in Var-Prop Map

Parameters:

varName - The var name

props - The set of properties

toString

public java.lang.String toString()

toString() method

Overrides:

toString in class java.lang.Object