gudusoft.gsqlparser.resolver2.scope

Class UpdateScope

Object

gudusoft.gsqlparser.resolver2.scope.AbstractScope

gudusoft.gsqlparser.resolver2.scope.UpdateScope

All Implemented Interfaces:

IScope

public class UpdateScope
extends AbstractScope

Scope for UPDATE statement. Contains: - Target table (the UPDATE table) - FROM clause scope (optional - for UPDATE...FROM syntax) - SET clause columns - WHERE clause scope Example: UPDATE titles SET total_sales = total_sales + qty FROM titles, salesdetail, sales WHERE titles.title_id = salesdetail.title_id Resolution strategy: - SET clause columns resolve from target table or FROM clause tables - WHERE clause columns resolve from all visible tables

Field Summary

Fields inherited from class gudusoft.gsqlparser.resolver2.scope.AbstractScope

node, parent, scopeType

Constructor Summary

Constructors

Constructor and Description
UpdateScope(IScope parent, TUpdateSqlStatement stmt)

Method Summary

Modifier and Type	Method and Description
FromScope	getFromScope()
TUpdateSqlStatement	getUpdateStatement()
List<INamespace>	getVisibleNamespaces() Default implementation: delegate to parent
IScope	getWhereScope()
void	resolve(List<String> names, INameMatcher matcher, boolean deep, IResolved resolved) Resolve a name within this UPDATE scope.
INamespace	resolveTable(String tableName) Default implementation: delegate to parent
void	setFromScope(FromScope fromScope)
void	setWhereScope(IScope whereScope)
String	toString()

Methods inherited from class gudusoft.gsqlparser.resolver2.scope.AbstractScope

addChild, fullyQualify, getChildren, getNode, getParent, getScopeType, isWithin

Methods inherited from class Object

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

Constructor Detail

UpdateScope

public UpdateScope(IScope parent,
                   TUpdateSqlStatement stmt)

Method Detail

setFromScope

public void setFromScope(FromScope fromScope)

getFromScope

public FromScope getFromScope()

setWhereScope

public void setWhereScope(IScope whereScope)

getWhereScope

public IScope getWhereScope()

getUpdateStatement

public TUpdateSqlStatement getUpdateStatement()

resolveTable

public INamespace resolveTable(String tableName)

Description copied from class: AbstractScope

Default implementation: delegate to parent

Specified by:

resolveTable in interface IScope

Overrides:

resolveTable in class AbstractScope

Parameters:

tableName - Table name or alias

Returns:

Namespace if found, null otherwise

getVisibleNamespaces

public List<INamespace> getVisibleNamespaces()

Description copied from class: AbstractScope

Default implementation: delegate to parent

Specified by:

getVisibleNamespaces in interface IScope

Overrides:

getVisibleNamespaces in class AbstractScope

Returns:

List of visible namespaces

resolve

public void resolve(List<String> names,
                    INameMatcher matcher,
                    boolean deep,
                    IResolved resolved)

Resolve a name within this UPDATE scope. Resolution strategy: 1. For unqualified names (col): first check parent scope for PL/SQL variables, then search all visible namespaces in FROM scope 2. For qualified names (t.col): find table t in FROM scope, then resolve col 3. Delegate to parent for names not found locally

Specified by:

resolve in interface IScope

Overrides:

resolve in class AbstractScope

Parameters:

names - Name parts (e.g., ["schema", "table", "column"])

matcher - Name matcher for case sensitivity rules

deep - Whether to recursively resolve into record fields

resolved - Callback to collect all matches

toString

public String toString()

Overrides:

toString in class AbstractScope