gudusoft.gsqlparser.resolver2.scope

Class DeleteScope

Object

gudusoft.gsqlparser.resolver2.scope.AbstractScope

gudusoft.gsqlparser.resolver2.scope.DeleteScope

All Implemented Interfaces:

IScope

public class DeleteScope
extends AbstractScope

Scope for DELETE statement. Contains: - Target table (the DELETE table) - FROM clause scope (optional - for DELETE...FROM syntax in SQL Server) - WHERE clause scope Example (SQL Server): DELETE FROM Sales.SalesPersonQuotaHistory FROM Sales.SalesPersonQuotaHistory AS spqh INNER JOIN Sales.SalesPerson AS sp ON spqh.SalesPersonID = sp.SalesPersonID WHERE sp.SalesYTD > 2500000.00; Resolution strategy: - WHERE clause columns resolve from all visible tables (target table + FROM clause tables) - JOIN ON clause columns resolve from the joined tables

Field Summary

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

node, parent, scopeType

Constructor Summary

Constructors

Constructor and Description
DeleteScope(IScope parent, TDeleteSqlStatement stmt)

Method Summary

Modifier and Type	Method and Description
TDeleteSqlStatement	getDeleteStatement()
FromScope	getFromScope()
List<INamespace>	getVisibleNamespaces() The namespaces a name in this scope can see: the scope's own, then those of its lookup parent, as AbstractScope.resolve(java.util.List<java.lang.String>, gudusoft.gsqlparser.resolver2.matcher.INameMatcher, boolean, gudusoft.gsqlparser.resolver2.scope.IResolved) walks them.
IScope	getWhereScope()
void	resolve(List<String> names, INameMatcher matcher, boolean deep, IResolved resolved) Resolve a name within this DELETE 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

addAllDistinct, addChild, addOwnNamespaces, fullyQualify, getChildren, getLookupParent, getNode, getParent, getScopeType, isWithin, setLookupParent

Methods inherited from class Object

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

Constructor Detail

DeleteScope

public DeleteScope(IScope parent,
                   TDeleteSqlStatement stmt)

Method Detail

setFromScope

public void setFromScope(FromScope fromScope)

getFromScope

public FromScope getFromScope()

setWhereScope

public void setWhereScope(IScope whereScope)

getWhereScope

public IScope getWhereScope()

getDeleteStatement

public TDeleteSqlStatement getDeleteStatement()

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

The namespaces a name in this scope can see: the scope's own, then those of its lookup parent, as AbstractScope.resolve(java.util.List<java.lang.String>, gudusoft.gsqlparser.resolver2.matcher.INameMatcher, boolean, gudusoft.gsqlparser.resolver2.scope.IResolved) walks them. A non-lateral derived table or CTE body hides its owner's FROM scope by a lookup parent (ScopeBuilder.setLookupParent), so the structural parent is not followed here either (Mantis 4820, Codex review).

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 DELETE scope. Resolution strategy (same as UpdateScope): 1. For qualified names (t.col): find table t in FROM scope, then resolve col 2. For unqualified names (col): search all visible namespaces in FROM scope 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