gudusoft.gsqlparser.resolver2.scope

Class SelectScope

Object

gudusoft.gsqlparser.resolver2.scope.AbstractScope

gudusoft.gsqlparser.resolver2.scope.SelectScope

All Implemented Interfaces:

IScope

public class SelectScope
extends AbstractScope

Scope for SELECT statement. This is typically the root scope for a query. Contains: - FROM clause scope (child) - WHERE clause scope (child) - SELECT list namespace (for ORDER BY to reference)

Field Summary

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

node, parent, scopeType

Constructor Summary

Constructors

Constructor and Description
SelectScope(IScope parent, TParseTreeNode node)

Method Summary

Modifier and Type	Method and Description
FromScope	getFromScope()
INamespace	getSelectListNamespace()
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 SELECT scope.
INamespace	resolveTable(String tableName) Default implementation: delegate to parent
void	setFromScope(FromScope fromScope)
void	setSelectListNamespace(INamespace namespace)
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

SelectScope

public SelectScope(IScope parent,
                   TParseTreeNode node)

Method Detail

setFromScope

public void setFromScope(FromScope fromScope)

getFromScope

public FromScope getFromScope()

setWhereScope

public void setWhereScope(IScope whereScope)

getWhereScope

public IScope getWhereScope()

setSelectListNamespace

public void setSelectListNamespace(INamespace namespace)

getSelectListNamespace

public INamespace getSelectListNamespace()

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 SELECT scope. Resolution strategy: 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