Deveel.Data.Sql.Parser.AlterTableNode Class Reference

Inheritance diagram for Deveel.Data.Sql.Parser.AlterTableNode:

Protected Member Functions
override ISqlNode	OnChildNode (ISqlNode node)
	During the initialization of the node from the parser, this method is called for every child node added to ChildNodes More...
override void	BuildStatement (StatementBuilder builder)
Protected Member Functions inherited from Deveel.Data.Sql.Parser.SqlNode
virtual void	OnNodeInit ()
	After the initialization of the node from the parser, this method is invoked to let the specific initialization to occur. More...

Properties
string	TableName [get, private set]
IEnumerable< IAlterActionNode >	Actions [get, private set]
CreateTableNode	CreateTable [get, private set]
Properties inherited from Deveel.Data.Sql.Parser.SqlNode
ISqlNode	Parent [get, private set]
	Gets the parent of the current node. More...
string	NodeName [get, private set]
	Gets the name of the node, as expressed in the SQL grammar. More...
IEnumerable< ISqlNode >	ChildNodes [get, private set]
	Gets an immutable list of nodes, children of the current node. More...
IEnumerable< Token >	Tokens [get, private set]
	Gets an immutable list of Token that represent the source of this node. More...
string ISqlNode.	NodeName [get]
ISqlNode ISqlNode.	Parent [get]
IEnumerable< ISqlNode > ISqlNode.	ChildNodes [get]
IEnumerable< Token > ISqlNode.	Tokens [get]
Properties inherited from Deveel.Data.Sql.Parser.ISqlNode
string	NodeName [get]
	Gets the name of the node analyzed from the parser. More...
ISqlNode	Parent [get]
	Gets a reference to the parent ISqlNode, if any. More...
IEnumerable< ISqlNode >	ChildNodes [get]
	Gets a read-only enumeration of the children nodes, if any. More...
IEnumerable< Token >	Tokens [get]
	Gets an enumeration of the tokens composing the this node. More...

Static Private Member Functions
static void	BuildAction (ITypeResolver typeResolver, ObjectName tableName, IAlterActionNode action, ICollection< IStatement > statements)

Additional Inherited Members
Public Member Functions inherited from Deveel.Data.Sql.Parser.SqlNode
	SqlNode ()

Detailed Description

Definition at line 24 of file AlterTableNode.cs.

Member Function Documentation

static void Deveel.Data.Sql.Parser.AlterTableNode.BuildAction ( ITypeResolver  typeResolver, ObjectName  tableName, IAlterActionNode  action, ICollection< IStatement >  statements  )

inlinestaticprivate

Definition at line 63 of file AlterTableNode.cs.

                                                {
            if (action is AddColumnNode) {
                var column = ((AddColumnNode) action).Column;
                var constraints = new List<SqlTableConstraint>();
                var columnInfo = column.BuildColumn(typeResolver, tableName.FullName, constraints);

                statements.Add(new AlterTableStatement(tableName, new AddColumnAction(columnInfo)));

                foreach (var constraint in constraints) {
                    statements.Add(new AlterTableStatement(tableName, new AddConstraintAction(constraint)));
                }
            } else if (action is AddConstraintNode) {
                var constraint = ((AddConstraintNode) action).Constraint;

                var constraintInfo = constraint.BuildConstraint();
                statements.Add(new AlterTableStatement(tableName, new AddConstraintAction(constraintInfo)));
            } else if (action is DropColumnNode) {
                var columnName = ((DropColumnNode) action).ColumnName;
                statements.Add(new AlterTableStatement(tableName, new DropColumnAction(columnName)));
            } else if (action is DropConstraintNode) {
                var constraintName = ((DropConstraintNode) action).ConstraintName;
                statements.Add(new AlterTableStatement(tableName, new DropConstraintAction(constraintName)));
            } else if (action is SetDefaultNode) {
                var actionNode = ((SetDefaultNode) action);
                var columnName = actionNode.ColumnName;
                var expression = ExpressionBuilder.Build(actionNode.Expression);
                statements.Add(new AlterTableStatement(tableName, new SetDefaultAction(columnName, expression)));
            } else if (action is DropDefaultNode) {
                var columnName = ((DropDefaultNode) action).ColumnName;
                statements.Add(new AlterTableStatement(tableName, new DropDefaultAction(columnName)));
            } else if (action is AlterColumnNode) {
                var column = ((AlterColumnNode) action).Column;
                var constraints = new List<SqlTableConstraint>();
                var columnInfo = column.BuildColumn(typeResolver, tableName.FullName, constraints);

                // CHECK: Here we do a drop and add column: is there a better way on the back-end?
                statements.Add(new AlterTableStatement(tableName, new DropColumnAction(columnInfo.ColumnName)));

                statements.Add(new AlterTableStatement(tableName, new AddColumnAction(columnInfo)));

                foreach (var constraint in constraints) {
                    statements.Add(new AlterTableStatement(tableName, new AddConstraintAction(constraint)));
                }
            }
        }

override void Deveel.Data.Sql.Parser.AlterTableNode.BuildStatement ( StatementBuilder  builder )

inlineprotectedvirtual

Implements Deveel.Data.Sql.Parser.SqlStatementNode.

Definition at line 43 of file AlterTableNode.cs.

                                                                         {
            if (CreateTable != null) {
                var statements = new List<IStatement>();
                CreateTable.Build(builder.TypeResolver, statements);

                foreach (var statement in statements) {
                    if (statement is CreateTableStatement)
                        ((CreateTableStatement) statement).IfNotExists = true;
                }

                foreach (var statement in statements) {
                    builder.Statements.Add(statement);
                }
            } else if (Actions != null) {
                foreach (var action in Actions) {
                    BuildAction(builder.TypeResolver, ObjectName.Parse(TableName), action, builder.Statements);
                }
            }
        }

override ISqlNode Deveel.Data.Sql.Parser.AlterTableNode.OnChildNode ( ISqlNode  node )

inlineprotectedvirtual

During the initialization of the node from the parser, this method is called for every child node added to ChildNodes

Parameters

node	The node being added to the list of children.

Returns

Returns a normalized version of the child node, or the node itself.

Reimplemented from Deveel.Data.Sql.Parser.SqlNode.

Definition at line 31 of file AlterTableNode.cs.

                                                               {
            if (node is ObjectNameNode) {
                TableName = ((ObjectNameNode) node).Name;
            } else if (node is CreateTableNode) {
                CreateTable = (CreateTableNode) node;
            } else if (node.NodeName == "alter_actions") {
                Actions = node.FindNodes<IAlterActionNode>();
            }

            return base.OnChildNode(node);
        }

Property Documentation

IEnumerable<IAlterActionNode> Deveel.Data.Sql.Parser.AlterTableNode.Actions

getprivate set

Definition at line 27 of file AlterTableNode.cs.

CreateTableNode Deveel.Data.Sql.Parser.AlterTableNode.CreateTable

getprivate set

Definition at line 29 of file AlterTableNode.cs.

string Deveel.Data.Sql.Parser.AlterTableNode.TableName

getprivate set

Definition at line 25 of file AlterTableNode.cs.

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The documentation for this class was generated from the following file:

• /var/calculate/remote/distfiles/egit-src/deveeldb.git/src/deveeldb/Deveel.Data.Sql.Parser/AlterTableNode.cs