Package org.pgcodekeeper.core.database.base.parser.antlr

Class AbstractExpr

java.lang.Object

org.pgcodekeeper.core.database.base.parser.antlr.AbstractExpr

Direct Known Subclasses:

ChAbstractExpr, MsAbstractExpr, PgAbstractExpr

public abstract class AbstractExpr
extends Object

Abstract base class for SQL expression analysis.

Method Summary

Modifier and Type	Method	Description
void	addDependency(GenericColumn genericColumn, org.antlr.v4.runtime.ParserRuleContext ctx)	Adds a non-system dependency
void	addDependency(GenericColumn genericColumn, org.antlr.v4.runtime.ParserRuleContext ctx, PgObjLocation.LocationType type)	Adds a dependency with parser rule context and dependency type
void	addDependency(PgObjLocation dependency)	Adds a dependency
void	addReference(GenericColumn genericColumn, org.antlr.v4.runtime.ParserRuleContext ctx)	Adds a dependency with parser rule context as a reference
void	addVariable(GenericColumn genericColumn, org.antlr.v4.runtime.ParserRuleContext ctx)	Adds a dependency with parser rule context as a variable
Map.Entry<String,GenericColumn>	findReference(String schema, String name, String column)
Set<PgObjLocation>	getDependencies()	Gets an unmodifiable set of database object dependencies found in this expression.

Methods inherited from class java.lang.Object

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

Method Details

getDependencies

public Set<PgObjLocation> getDependencies()

Gets an unmodifiable set of database object dependencies found in this expression.

Returns:

set of PgObjLocation representing dependencies

findReference

public Map.Entry<String,GenericColumn> findReference(String schema,
 String name,
 String column)

Parameters:

schema - optional schema qualification of name, may be null

name - alias of the referenced object

column - optional referenced column alias, may be null

Returns:

a pair of (Alias, Dealiased name) where Alias is the given name. Dealiased name can be null if the name is internal to the query and is not a reference to external table.
null if the name is not found

addDependency

public void addDependency(PgObjLocation dependency)

Adds a dependency

Parameters:

dependency - dependency

addReference

public void addReference(GenericColumn genericColumn,
 org.antlr.v4.runtime.ParserRuleContext ctx)

Adds a dependency with parser rule context as a reference

Parameters:

genericColumn - object location

ctx - parser rule context

addVariable

public void addVariable(GenericColumn genericColumn,
 org.antlr.v4.runtime.ParserRuleContext ctx)

Adds a dependency with parser rule context as a variable

Parameters:

genericColumn - object location

ctx - rule context

addDependency

public void addDependency(GenericColumn genericColumn,
 org.antlr.v4.runtime.ParserRuleContext ctx,
 PgObjLocation.LocationType type)

Adds a dependency with parser rule context and dependency type

Parameters:

genericColumn - object location

ctx - rule context

type - dependency type

addDependency

public void addDependency(GenericColumn genericColumn,
 org.antlr.v4.runtime.ParserRuleContext ctx)

Adds a non-system dependency

Parameters:

genericColumn - object location

ctx - rule context