Column types refactoring.

sqlbuilder/column_types.go

@@ -0,0 +1,65 @@
+package sqlbuilder
+
+//------------------------------------------------------//
+type BoolColumn struct {
+	boolInterfaceImpl
+
+	baseColumn
+}
+
+func NewBoolColumn(name string, nullable NullableColumn) *BoolColumn {
+	if !validIdentifierName(name) {
+		panic("Invalid column name in bool column")
+	}
+	boolColumn := &BoolColumn{}
+	boolColumn.baseColumn = newBaseColumn(name, nullable, "", boolColumn)
+
+	boolColumn.boolInterfaceImpl.parent = boolColumn
+
+	return boolColumn
+}
+
+//------------------------------------------------------//
+type NumericColumn struct {
+	numericInterfaceImpl
+	baseColumn
+}
+
+func NewNumericColumn(name string, nullable NullableColumn) *NumericColumn {
+	if !validIdentifierName(name) {
+		panic("Invalid column name")
+	}
+
+	numericColumn := &NumericColumn{}
+
+	numericColumn.numericInterfaceImpl.parent = numericColumn
+
+	numericColumn.baseColumn = newBaseColumn(name, nullable, "", numericColumn)
+
+	return numericColumn
+}
+
+//------------------------------------------------------//
+type IntegerColumn struct {
+	numericInterfaceImpl
+	integerInterfaceImpl
+
+	baseColumn
+}
+
+// Representation of any integer column
+// This function will panic if name is not valid
+func NewIntegerColumn(name string, nullable NullableColumn) *IntegerColumn {
+	if !validIdentifierName(name) {
+		panic("Invalid column name")
+	}
+
+	integerColumn := &IntegerColumn{}
+
+	integerColumn.numericInterfaceImpl.parent = integerColumn
+	integerColumn.integerInterfaceImpl.parent = integerColumn
+
+	integerColumn.baseColumn = newBaseColumn(name, nullable, "", integerColumn)
+
+	return integerColumn
+}