private RelDataType sqlType(
RelDataTypeFactory typeFactory, int dataType, int precision, int scale, String typeString) {
SqlTypeName sqlTypeName = SqlTypeName.getNameForJdbcType(dataType);
switch (sqlTypeName) {
case ARRAY:
RelDataType component = null;
if (typeString != null && typeString.endsWith(" ARRAY")) {
// E.g. hsqldb gives "INTEGER ARRAY", so we deduce the component type
// "INTEGER".
final String remaining = typeString.substring(0, typeString.length() - " ARRAY".length());
component = parseTypeString(typeFactory, remaining);
}
if (component == null) {
component = typeFactory.createSqlType(SqlTypeName.ANY);
}
return typeFactory.createArrayType(component, -1);
}
if (precision >= 0 && scale >= 0 && sqlTypeName.allowsPrecScale(true, true)) {
return typeFactory.createSqlType(sqlTypeName, precision, scale);
} else if (precision >= 0 && sqlTypeName.allowsPrecNoScale()) {
return typeFactory.createSqlType(sqlTypeName, precision);
} else {
assert sqlTypeName.allowsNoPrecNoScale();
return typeFactory.createSqlType(sqlTypeName);
}
}
/**
* Given "INTEGER", returns BasicSqlType(INTEGER). Given "VARCHAR(10)", returns
* BasicSqlType(VARCHAR, 10). Given "NUMERIC(10, 2)", returns BasicSqlType(NUMERIC, 10, 2).
*/
private RelDataType parseTypeString(RelDataTypeFactory typeFactory, String typeString) {
int precision = -1;
int scale = -1;
int open = typeString.indexOf("(");
if (open >= 0) {
int close = typeString.indexOf(")", open);
if (close >= 0) {
String rest = typeString.substring(open + 1, close);
typeString = typeString.substring(0, open);
int comma = rest.indexOf(",");
if (comma >= 0) {
precision = Integer.parseInt(rest.substring(0, comma));
scale = Integer.parseInt(rest.substring(comma));
} else {
precision = Integer.parseInt(rest);
}
}
}
try {
final SqlTypeName typeName = SqlTypeName.valueOf(typeString);
return typeName.allowsPrecScale(true, true)
? typeFactory.createSqlType(typeName, precision, scale)
: typeName.allowsPrecScale(true, false)
? typeFactory.createSqlType(typeName, precision)
: typeFactory.createSqlType(typeName);
} catch (IllegalArgumentException e) {
return typeFactory.createSqlType(SqlTypeName.ANY);
}
}
/** Initializes this catalog reader. */
protected void init() {
final RelDataType intType = typeFactory.createSqlType(SqlTypeName.INTEGER);
final RelDataType varchar10Type = typeFactory.createSqlType(SqlTypeName.VARCHAR, 10);
final RelDataType varchar20Type = typeFactory.createSqlType(SqlTypeName.VARCHAR, 20);
final RelDataType timestampType = typeFactory.createSqlType(SqlTypeName.TIMESTAMP);
final RelDataType booleanType = typeFactory.createSqlType(SqlTypeName.BOOLEAN);
final RelDataType rectilinearCoordType =
typeFactory.createStructType(new RelDataType[] {intType, intType}, new String[] {"X", "Y"});
// TODO jvs 12-Feb-2005: register this canonical instance with type
// factory
addressType =
new ObjectSqlType(
SqlTypeName.STRUCTURED,
new SqlIdentifier("ADDRESS", SqlParserPos.ZERO),
false,
Arrays.asList(
new RelDataTypeFieldImpl("STREET", 0, varchar20Type),
new RelDataTypeFieldImpl("CITY", 1, varchar20Type),
new RelDataTypeFieldImpl("ZIP", 1, intType),
new RelDataTypeFieldImpl("STATE", 1, varchar20Type)),
RelDataTypeComparability.None);
// Register "SALES" schema.
MockSchema salesSchema = new MockSchema("SALES");
registerSchema(salesSchema);
// Register "EMP" table.
MockTable empTable = new MockTable(this, salesSchema, "EMP");
empTable.addColumn("EMPNO", intType);
empTable.addColumn("ENAME", varchar20Type);
empTable.addColumn("JOB", varchar10Type);
empTable.addColumn("MGR", intType);
empTable.addColumn("HIREDATE", timestampType);
empTable.addColumn("SAL", intType);
empTable.addColumn("COMM", intType);
empTable.addColumn("DEPTNO", intType);
empTable.addColumn("SLACKER", booleanType);
registerTable(empTable);
// Register "DEPT" table.
MockTable deptTable = new MockTable(this, salesSchema, "DEPT");
deptTable.addColumn("DEPTNO", intType);
deptTable.addColumn("NAME", varchar10Type);
registerTable(deptTable);
// Register "BONUS" table.
MockTable bonusTable = new MockTable(this, salesSchema, "BONUS");
bonusTable.addColumn("ENAME", varchar20Type);
bonusTable.addColumn("JOB", varchar10Type);
bonusTable.addColumn("SAL", intType);
bonusTable.addColumn("COMM", intType);
registerTable(bonusTable);
// Register "SALGRADE" table.
MockTable salgradeTable = new MockTable(this, salesSchema, "SALGRADE");
salgradeTable.addColumn("GRADE", intType);
salgradeTable.addColumn("LOSAL", intType);
salgradeTable.addColumn("HISAL", intType);
registerTable(salgradeTable);
// Register "EMP_ADDRESS" table
MockTable contactAddressTable = new MockTable(this, salesSchema, "EMP_ADDRESS");
contactAddressTable.addColumn("EMPNO", intType);
contactAddressTable.addColumn("HOME_ADDRESS", addressType);
contactAddressTable.addColumn("MAILING_ADDRESS", addressType);
registerTable(contactAddressTable);
// Register "CUSTOMER" schema.
MockSchema customerSchema = new MockSchema("CUSTOMER");
registerSchema(customerSchema);
// Register "CONTACT" table.
MockTable contactTable = new MockTable(this, customerSchema, "CONTACT");
contactTable.addColumn("CONTACTNO", intType);
contactTable.addColumn("FNAME", varchar10Type);
contactTable.addColumn("LNAME", varchar10Type);
contactTable.addColumn("EMAIL", varchar20Type);
contactTable.addColumn("COORD", rectilinearCoordType);
registerTable(contactTable);
// Register "ACCOUNT" table.
MockTable accountTable = new MockTable(this, customerSchema, "ACCOUNT");
accountTable.addColumn("ACCTNO", intType);
accountTable.addColumn("TYPE", varchar20Type);
accountTable.addColumn("BALANCE", intType);
registerTable(accountTable);
}