ch.brickwork.bsetl.db

Class Result

java.lang.Object

ch.brickwork.bsetl.db.Result

public class Result
extends Object

an abstraction of the JDBC result set

Constructor Summary

Constructors

Constructor and Description
Result(ResultSet resultSet, Db obtainedFrom)

Method Summary

Modifier and Type	Method and Description
int	countRows()
Set<Object>	getColumnNonNullValues(String columnName)
Set<Object>	getColumnValues(String columnName)
String	getColumnValuesAsSQLSet(String columnName) convenient method to return the sql set obtained from the DB connection where this result was obtained from (cf.
List<Map<String,Object>>	getRowsAsMap() get a list of maps, where each map represents a row of the result set, where key is the property name, and value is the value
Object	getSingleRowPropertyValue(String propertyName) if you know there is one single row in the result, gets the value of a property
static List<Map<String,Object>>	merge(Result r1, Result r2)
Set<Object>	singleColumnValues()
String	singleColumnValuesAsSQLSet() return values of first column suitable for use in SQL IN clause
int	size()
Object	vLookUp(String searchProperty, Object valueToMatchWith, String targetProperty)

Methods inherited from class java.lang.Object

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

Constructor Detail

Result

public Result(ResultSet resultSet,
              Db obtainedFrom)

Method Detail

getRowsAsMap

public List<Map<String,Object>> getRowsAsMap()
                                      throws SQLException

get a list of maps, where each map represents a row of the result set, where key is the property name, and value is the value

Returns:

rows as list of maps

Throws:

SQLException

getSingleRowPropertyValue

public Object getSingleRowPropertyValue(String propertyName)
                                 throws MoreThanOneRowPresentException,
                                        SQLException

if you know there is one single row in the result, gets the value of a property

Parameters:

propertyName -

Returns:

value of property on that single row

Throws:

SQLException

MoreThanOneRowPresentException - if there are more than 1 or less than 1 results

singleColumnValues

public Set<Object> singleColumnValues()
                               throws MoreThanOneColumnPresentException,
                                      SQLException

Returns:

get all values found in the one single column of result set

Throws:

SQLException

MoreThanOneColumnPresentException

getColumnValues

public Set<Object> getColumnValues(String columnName)
                            throws SQLException

Parameters:

columnName -

Returns:

values within column "columnName" as a set

Throws:

SQLException

getColumnNonNullValues

public Set<Object> getColumnNonNullValues(String columnName)
                                   throws SQLException

Parameters:

columnName -

Returns:

values within column "columnName" as a set, not null

Throws:

SQLException

getColumnValuesAsSQLSet

public String getColumnValuesAsSQLSet(String columnName)
                               throws SQLException

convenient method to return the sql set obtained from the DB connection where this result was obtained from (cf. Db.toSQLSet(Set) toSQLSet}

Parameters:

columnName -

Returns:

Throws:

SQLException

singleColumnValuesAsSQLSet

public String singleColumnValuesAsSQLSet()
                                  throws SQLException,
                                         MoreThanOneColumnPresentException

return values of first column suitable for use in SQL IN clause

Returns:

for values { "abc", "def" }, returns String like "('abc', 'def')"

Throws:

SQLException

MoreThanOneColumnPresentException

countRows

public int countRows()
              throws SQLException

Throws:

SQLException

vLookUp

public Object vLookUp(String searchProperty,
                      Object valueToMatchWith,
                      String targetProperty)
               throws SQLException

Throws:

SQLException

size

public int size()
         throws SQLException

Throws:

SQLException

merge

public static List<Map<String,Object>> merge(Result r1,
                                             Result r2)
                                      throws SQLException

Returns:

merged set of unique entries from r1 and r2

Throws:

SQLException