jobmatch.data
Class LanguageProfileQuery

jobmatch.data.LanguageProfileQuery

public final class LanguageProfileQuery

LanguageProfileQuery is used to query the LanguageProfile table in the database.
It returns objects of type LanguageProfileDO.

General usage:

In DODS: Create a Data Object named "Dog", and create an Attribute named "Name", and set that Attribute to "Can be queried." DODS will then generate the method DogQuery.setQueryName().

In your Business Layer, prepare the query:

             DogQuery dq = new DogQuery();
             dq.setQueryName("Rex")
             if ( Rex is a reserved name )
                 dq.requireUniqueInstance();
 

Then, get the query results one of two ways:

#1:

             String names = "";
             DogBDO[] dogs = dq.getBDOArray();
             for ( int i = 0; i < dogs.length; i++ ) {
                 names += dogs[i].getName() + " ";
             }
 

or #2:

             String names = "";
             DogBDO dog;
             while ( null != ( dog = dq.getNextBDO() ) ) {
                 names += dog.getName() + " ";
             }
 

Note: Methods getDOArray() and getNextDO() do exist, but they are not generally used in the Business or Presentation layers of an application. All access to the Data Layer (DO classes) should occur via the Business Layer (BDO classes). Only the Business Layer (BDO classes and classes extending them) should need to manipulate the Data Layer (DO classes). See also the comments in the BDO constructors.

Note: If requireUniqueInstance() was called, then getBDOArray() or getNextBDO() will throw an exception if more than one "Rex" was found.

Note: Results of the query will come from the Data Object cache if: - The cache is available. - Matches were found in the cache. - No other tables (Data Objects of other types) were involved in the query. This can happen if you extend the DogQuery class and you make calls to the QueryBuilder object to add SQL involving other tables. If any of these conditions is not true, then any results from the query will come from the database.

To reuse the query object, call:

             dq.reset();
 

Version:

$Revision: 1.6 $

Constructor Summary

LanguageProfileQuery()
Public constructor.

Method Summary

void	addOrderByDiploma() Add Diploma to the ORDER BY clause.
void	addOrderByDiploma(boolean direction_flag) Add Diploma to the ORDER BY clause.
void	addOrderByLanguage() Add Language to the ORDER BY clause.
void	addOrderByLanguage(boolean direction_flag) Add Language to the ORDER BY clause.
void	addOrderByLeafNumber() Add LeafNumber to the ORDER BY clause.
void	addOrderByLeafNumber(boolean direction_flag) Add LeafNumber to the ORDER BY clause.
void	addOrderByMinSpoken() Add MinSpoken to the ORDER BY clause.
void	addOrderByMinSpoken(boolean direction_flag) Add MinSpoken to the ORDER BY clause.
void	addOrderByMinWritten() Add MinWritten to the ORDER BY clause.
void	addOrderByMinWritten(boolean direction_flag) Add MinWritten to the ORDER BY clause.
void	addOrderByProfile() Add Profile to the ORDER BY clause.
void	addOrderByProfile(boolean direction_flag) Add Profile to the ORDER BY clause.
void	closeParen() Place a closing parenthesis in the WHERE clause.
ResultSet	executeQuery(jobmatch.data.DBConnection conn) Method to query objects from the database.
LanguageProfileBDO[]	getBDOArray() Return array of BDOs constructed from ResultSet returned by query.
LanguageProfileDO[]	getDOArray() Return array of DOs constructed from ResultSet returned by query.
LanguageProfileBDO	getNextBDO() Return successive BDOs from array built from ResultSet returned by query.
LanguageProfileDO	getNextDO() Return successive DOs from array built from ResultSet returned by query.
jobmatch.data.QueryBuilder	getQueryBuilder() Returns the QueryBuilder that this LanguageProfileQuery uses to construct and execute database queries.
void	hitDatabase()
Object	next(ResultSet rs) WARNING! This method is disabled.
void	openParen() Place an open parenthesis in the WHERE clause.
void	or() Insert an OR between WHERE clauses.
void	requireUniqueInstance() Set "unique instance" assertion bit.
void	reset() Reset the query parameters.
void	setQueryDiploma(String x) Set the Diploma to query
void	setQueryDiploma(String x, boolean exact) Set the Diploma to query.
void	setQueryHandle(String handle) Set the object handle to query.
void	setQueryLanguage(LanguageDO x) Set the Language to query
void	setQueryLanguage(LanguageDO x, boolean exact) Set the Language to query.
void	setQueryLeafNumber(int x) Set the LeafNumber to query
void	setQueryLeafNumber(int x, boolean exact) Set the LeafNumber to query.
void	setQueryMinSpoken(LanguagecapabilityDO x) Set the MinSpoken to query
void	setQueryMinSpoken(LanguagecapabilityDO x, boolean exact) Set the MinSpoken to query.
void	setQueryMinWritten(LanguagecapabilityDO x) Set the MinWritten to query
void	setQueryMinWritten(LanguagecapabilityDO x, boolean exact) Set the MinWritten to query.
void	setQueryOId(jobmatch.data.ObjectId oid) Set the OID to query.
void	setQueryProfile(ProfileDO x) Set the Profile to query
void	setQueryProfile(ProfileDO x, boolean exact) Set the Profile to query.

Constructor Detail

LanguageProfileQuery

public LanguageProfileQuery()

Public constructor.

Method Detail

hitDatabase

public void hitDatabase()

getDOArray

public LanguageProfileDO[] getDOArray()
                               throws jobmatch.data.DataObjectException,
                                      jobmatch.data.NonUniqueQueryException

Return array of DOs constructed from ResultSet returned by query.

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

jobmatch.data.NonUniqueQueryException - If too many rows were found.

getNextDO

public LanguageProfileDO getNextDO()
                            throws jobmatch.data.DataObjectException,
                                   jobmatch.data.NonUniqueQueryException

Return successive DOs from array built from ResultSet returned by query.

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

jobmatch.data.NonUniqueQueryException - If too many rows were found.

getBDOArray

public LanguageProfileBDO[] getBDOArray()
                                 throws jobmatch.data.DataObjectException,
                                        jobmatch.data.NonUniqueQueryException

Return array of BDOs constructed from ResultSet returned by query.

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

jobmatch.data.NonUniqueQueryException - If too many rows were found.

getNextBDO

public LanguageProfileBDO getNextBDO()
                              throws jobmatch.data.DataObjectException,
                                     jobmatch.data.NonUniqueQueryException

Return successive BDOs from array built from ResultSet returned by query.

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

jobmatch.data.NonUniqueQueryException - If too many rows were found.

setQueryOId

public void setQueryOId(jobmatch.data.ObjectId oid)

Set the OID to query. WARNING! This method assumes that table LanguageProfile has a column named "oid". This method is called from the DO classes to retrieve an object by id.

Parameters:

oid - The object id to query.

setQueryHandle

public void setQueryHandle(String handle)
                    throws jobmatch.data.ObjectIdException

Set the object handle to query. This is a variant of setQueryOId().

Parameters:

handle - The string version of the id to query.

requireUniqueInstance

public void requireUniqueInstance()

Set "unique instance" assertion bit. The first call to the next() method will throw an exception if more than one object was found.

reset

public void reset()

Reset the query parameters.

executeQuery

public ResultSet executeQuery(jobmatch.data.DBConnection conn)
                       throws SQLException

Method to query objects from the database. The following call in runQuery() dbQuery.query( this ); causes the dbQuery object to invoke executeQuery()

Parameters:

conn - Handle to database connection.

Throws:

SQLException - If a database access error occurs.

next

public Object next(ResultSet rs)
            throws SQLException,
                   jobmatch.data.ObjectIdException

WARNING! This method is disabled. It's implementation is forced by the Query interface. This method is disabled for 2 reasons: 1) the getDOArray() and getNextDO() methods are better because they return DOs instead of JDBC objects. 2) the createExisting() method throws an exception that we cannot reasonably handle here, and that we cannot throw from here.

Parameters:

rs - JDBC result set from which the next object will be instantiated.

Throws:

SQLException - If a database access error occurs.

com.lutris.appserver.server.sql.ObjectIdException - If an invalid object id was queried from the database.

setQueryLeafNumber

public void setQueryLeafNumber(int x,
                               boolean exact)
                        throws jobmatch.data.DataObjectException,
                               jobmatch.data.QueryException

Set the LeafNumber to query.

Parameters:

x - The LeafNumber of the LanguageProfile to query.

exact - to use matches or not

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

setQueryLeafNumber

public void setQueryLeafNumber(int x)
                        throws jobmatch.data.DataObjectException,
                               jobmatch.data.QueryException

Set the LeafNumber to query

Parameters:

x - The LeafNumber of the LanguageProfile to query.

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

addOrderByLeafNumber

public void addOrderByLeafNumber(boolean direction_flag)

Add LeafNumber to the ORDER BY clause.

Parameters:

direction_flag - True for ascending order, false for descending

addOrderByLeafNumber

public void addOrderByLeafNumber()

Add LeafNumber to the ORDER BY clause. This convenience method assumes ascending order.

setQueryProfile

public void setQueryProfile(ProfileDO x,
                            boolean exact)
                     throws jobmatch.data.DataObjectException,
                            jobmatch.data.QueryException

Set the Profile to query.

Parameters:

x - The Profile of the LanguageProfile to query.

exact - to use matches or not

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

setQueryProfile

public void setQueryProfile(ProfileDO x)
                     throws jobmatch.data.DataObjectException,
                            jobmatch.data.QueryException

Set the Profile to query

Parameters:

x - The Profile of the LanguageProfile to query.

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

addOrderByProfile

public void addOrderByProfile(boolean direction_flag)

Add Profile to the ORDER BY clause.

Parameters:

direction_flag - True for ascending order, false for descending

addOrderByProfile

public void addOrderByProfile()

Add Profile to the ORDER BY clause. This convenience method assumes ascending order.

setQueryLanguage

public void setQueryLanguage(LanguageDO x,
                             boolean exact)
                      throws jobmatch.data.DataObjectException,
                             jobmatch.data.QueryException

Set the Language to query.

Parameters:

x - The Language of the LanguageProfile to query.

exact - to use matches or not

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

setQueryLanguage

public void setQueryLanguage(LanguageDO x)
                      throws jobmatch.data.DataObjectException,
                             jobmatch.data.QueryException

Set the Language to query

Parameters:

x - The Language of the LanguageProfile to query.

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

addOrderByLanguage

public void addOrderByLanguage(boolean direction_flag)

Add Language to the ORDER BY clause.

Parameters:

direction_flag - True for ascending order, false for descending

addOrderByLanguage

public void addOrderByLanguage()

Add Language to the ORDER BY clause. This convenience method assumes ascending order.

setQueryDiploma

public void setQueryDiploma(String x,
                            boolean exact)
                     throws jobmatch.data.DataObjectException,
                            jobmatch.data.QueryException

Set the Diploma to query.

Parameters:

x - The Diploma of the LanguageProfile to query.

exact - to use matches or not

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

setQueryDiploma

public void setQueryDiploma(String x)
                     throws jobmatch.data.DataObjectException,
                            jobmatch.data.QueryException

Set the Diploma to query

Parameters:

x - The Diploma of the LanguageProfile to query.

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

addOrderByDiploma

public void addOrderByDiploma(boolean direction_flag)

Add Diploma to the ORDER BY clause.

Parameters:

direction_flag - True for ascending order, false for descending

addOrderByDiploma

public void addOrderByDiploma()

Add Diploma to the ORDER BY clause. This convenience method assumes ascending order.

setQueryMinWritten

public void setQueryMinWritten(LanguagecapabilityDO x,
                               boolean exact)
                        throws jobmatch.data.DataObjectException,
                               jobmatch.data.QueryException

Set the MinWritten to query.

Parameters:

x - The MinWritten of the LanguageProfile to query.

exact - to use matches or not

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

setQueryMinWritten

public void setQueryMinWritten(LanguagecapabilityDO x)
                        throws jobmatch.data.DataObjectException,
                               jobmatch.data.QueryException

Set the MinWritten to query

Parameters:

x - The MinWritten of the LanguageProfile to query.

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

addOrderByMinWritten

public void addOrderByMinWritten(boolean direction_flag)

Add MinWritten to the ORDER BY clause.

Parameters:

direction_flag - True for ascending order, false for descending

addOrderByMinWritten

public void addOrderByMinWritten()

Add MinWritten to the ORDER BY clause. This convenience method assumes ascending order.

setQueryMinSpoken

public void setQueryMinSpoken(LanguagecapabilityDO x,
                              boolean exact)
                       throws jobmatch.data.DataObjectException,
                              jobmatch.data.QueryException

Set the MinSpoken to query.

Parameters:

x - The MinSpoken of the LanguageProfile to query.

exact - to use matches or not

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

setQueryMinSpoken

public void setQueryMinSpoken(LanguagecapabilityDO x)
                       throws jobmatch.data.DataObjectException,
                              jobmatch.data.QueryException

Set the MinSpoken to query

Parameters:

x - The MinSpoken of the LanguageProfile to query.

Throws:

jobmatch.data.DataObjectException - If a database access error occurs.

addOrderByMinSpoken

public void addOrderByMinSpoken(boolean direction_flag)

Add MinSpoken to the ORDER BY clause.

Parameters:

direction_flag - True for ascending order, false for descending

addOrderByMinSpoken

public void addOrderByMinSpoken()

Add MinSpoken to the ORDER BY clause. This convenience method assumes ascending order.

getQueryBuilder

public jobmatch.data.QueryBuilder getQueryBuilder()

Returns the QueryBuilder that this LanguageProfileQuery uses to construct and execute database queries. LanguageProfileQuery.setQueryXXX methods use the QueryBuilder to append SQL expressions to the "WHERE" clause to be executed. The QueryBuilder.addEndClause method. can be used to append freeform SQL expressions to the WHERE clause, e.g. "ORDER BY name". Notes regarding cache-enabled DO classes: DO classes can be cache-enabled. If when using a LanguageProfileQuery, the application developer does not call getQueryBuilder, then LanguageProfileQuery.setQueryXXX methods simply prune the DO cache and return the remaining results. However, a QueryBuilder builds SELECT statements for execution by the actual database, and never searches the built-in cache for the DO. So, if the DO class is cache-enabled, and getQueryBuilder is called, this LanguageProfileQuery object ignores the cache and hits the actual database.

or

public void or()

Insert an OR between WHERE clauses. Example: find all the persons named Bob or Robert: PersonQuery pq = new PersonQuery(); pq.setQueryFirstName( "Bob" ); pq.or(); pq.setQueryFirstName( "Robert" ); Note: Calls to setQueryXxx methods are implicitly ANDed together, so the following example will always return nothing: PersonQuery pq = new PersonQuery(); pq.setQueryFirstName( "Bob" ); // AND automatically inserted here. pq.setQueryFirstName( "Robert" );

See Also:

to construct more elaborate queries.

openParen

public void openParen()

Place an open parenthesis in the WHERE clause. Example usage: find all the Bobs and Roberts who are 5 or 50 years old: PersonQuery pq = new PersonQuery(); pq.openParen(); pq.setQueryFirstName( "Bob" ); pq.or(); pq.setQueryFirstName( "Robert" ); pq.closeParen(); // AND automatically inserted here. pq.openParen(); pq.setQueryAge( 5 ); pq.or(); pq.setQueryAge( 50 ); pq.closeParen();

See Also:

to construct more elaborate queries.

closeParen

public void closeParen()

Place a closing parenthesis in the WHERE clause.

See Also:

openParen