org.apache.torque.util
Class CountHelper

java.lang.Object
  extended by org.apache.torque.util.CountHelper

public class CountHelper
extends Object

Counts entries matching a criteria.


Constructor Summary
CountHelper()
           
 
Method Summary
 int count(Criteria c)
          Deprecated. use org.apache.torque.criteria.Criteria instead of org.apache.torque.util.Criteria. This method will be removed in Torque 4.1.
 int count(Criteria c)
          The COUNT function returns the number of rows in a query.
 int count(Criteria c, Column column)
          Deprecated. use org.apache.toraue.criteria.Criteria instead of org.apache.toraue.util.Criteria. This method will be removed in Torque 4.1.
 int count(Criteria c, Column column)
          Returns the number of rows in a query.
 int count(Criteria c, Connection conn)
          Deprecated. use org.apache.toraue.criteria.Criteria instead of org.apache.toraue.util.Criteria. This method will be removed in Torque 4.1.
 int count(Criteria c, Connection conn)
          The COUNT function returns the number of rows in a query.
 int count(Criteria c, Connection conn, Column column)
          Deprecated. use org.apache.toraue.criteria.Criteria instead of org.apache.toraue.util.Criteria. This method will be removed in Torque 4.1.
 int count(Criteria c, Connection conn, Column column)
          Returns the number of rows in a query.
 int count(Criteria c, Connection conn, String columnName, TableMap tableMap)
          Deprecated. use org.apache.toraue.criteria.Criteria instead of org.apache.toraue.util.Criteria. This method will be removed in Torque 4.1.
 int count(Criteria c, Connection conn, String columnName, TableMap tableMap)
          Returns the number of rows in a query.
 int count(Criteria c, String columnName)
          Deprecated. use org.apache.toraue.criteria.Criteria instead of org.apache.toraue.util.Criteria. This method will be removed in Torque 4.1.
 int count(Criteria c, String columnName)
          Returns the number of rows in a query.
 int count(TableMap tableMap)
          Counts all rows in a table.
 int count(TableMap tableMap, Connection conn)
          Counts all rows in a table.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

CountHelper

public CountHelper()
Method Detail

count

@Deprecated
public int count(Criteria c)
          throws TorqueException
Deprecated. use org.apache.torque.criteria.Criteria instead of org.apache.torque.util.Criteria. This method will be removed in Torque 4.1.

The COUNT function returns the number of rows in a query. Does not use a connection, hardcode the column to "*" and set the distinct qualifier to false. Only use this function if you have added additional constraints to the criteria, otherwise Torque does not know which table it should count the datasets in.

Parameters:
c - Criteria to get the count for.
Returns:
number of rows matching the query provided
Throws:
TorqueException - if the query could not be executed

count

public int count(Criteria c)
          throws TorqueException
The COUNT function returns the number of rows in a query. Does not use a connection, hardcode the column to "*" and set the distinct qualifier to false. Only use this function if you have added additional constraints to the criteria, otherwise Torque does not know which table it should count the datasets in.

Parameters:
c - Criteria to get the count for.
Returns:
number of rows matching the query provided
Throws:
TorqueException - if the query could not be executed

count

@Deprecated
public int count(Criteria c,
                            Connection conn)
          throws TorqueException
Deprecated. use org.apache.toraue.criteria.Criteria instead of org.apache.toraue.util.Criteria. This method will be removed in Torque 4.1.

The COUNT function returns the number of rows in a query. Hard code the distinct parameter to false and set the column to "*". Only use this function if you have added additional constraints to the criteria, otherwise Torque does not know which table it should count the datasets in.

Parameters:
c - Criteria to get the count for.
conn - Connection to use
Returns:
number of rows matching the query provided
Throws:
TorqueException - if the query could not be executed

count

public int count(Criteria c,
                 Connection conn)
          throws TorqueException
The COUNT function returns the number of rows in a query. Hard code the distinct parameter to false and set the column to "*". Only use this function if you have added additional constraints to the criteria, otherwise Torque does not know which table it should count the datasets in.

Parameters:
c - Criteria to get the count for.
conn - Connection to use
Returns:
number of rows matching the query provided
Throws:
TorqueException - if the query could not be executed

count

@Deprecated
public int count(Criteria c,
                            String columnName)
          throws TorqueException
Deprecated. use org.apache.toraue.criteria.Criteria instead of org.apache.toraue.util.Criteria. This method will be removed in Torque 4.1.

Returns the number of rows in a query.

Parameters:
c - Criteria to get the count for.
columnName - Name of database Column which is counted. Preferably, use the primary key here.
Returns:
number of rows matching the query provided
Throws:
TorqueException - if the query could not be executed

count

public int count(Criteria c,
                 String columnName)
          throws TorqueException
Returns the number of rows in a query.

Parameters:
c - Criteria to get the count for.
columnName - Name of database Column which is counted. Preferably, use the primary key here.
Returns:
number of rows matching the query provided
Throws:
TorqueException - if the query could not be executed

count

@Deprecated
public int count(Criteria c,
                            Column column)
          throws TorqueException
Deprecated. use org.apache.toraue.criteria.Criteria instead of org.apache.toraue.util.Criteria. This method will be removed in Torque 4.1.

Returns the number of rows in a query.

Parameters:
c - Criteria to get the count for.
column - the database Column which is counted. Preferably, use the primary key here.
Returns:
number of rows matching the query provided
Throws:
TorqueException - if the query could not be executed

count

public int count(Criteria c,
                 Column column)
          throws TorqueException
Returns the number of rows in a query.

Parameters:
c - Criteria to get the count for.
column - the database Column which is counted. Preferably, use the primary key here.
Returns:
number of rows matching the query provided
Throws:
TorqueException - if the query could not be executed

count

@Deprecated
public int count(Criteria c,
                            Connection conn,
                            Column column)
          throws TorqueException
Deprecated. use org.apache.toraue.criteria.Criteria instead of org.apache.toraue.util.Criteria. This method will be removed in Torque 4.1.

Returns the number of rows in a query.

Parameters:
c - Criteria to get the count for.
conn - Connection to use
column - The database Column which is counted. Preferably, use the primary key here.
Returns:
number of rows matching the query provided
Throws:
TorqueException - if the query could not be executed

count

public int count(Criteria c,
                 Connection conn,
                 Column column)
          throws TorqueException
Returns the number of rows in a query.

Parameters:
c - Criteria to get the count for.
conn - Connection to use
column - The database Column which is counted. Preferably, use the primary key here.
Returns:
number of rows matching the query provided
Throws:
TorqueException - if the query could not be executed

count

public int count(TableMap tableMap)
          throws TorqueException
Counts all rows in a table.

Parameters:
tableMap - the table map of the table to count rows in.
Returns:
the number of rows in the table.
Throws:
TorqueException - if the query could not be executed

count

public int count(TableMap tableMap,
                 Connection conn)
          throws TorqueException
Counts all rows in a table.

Parameters:
tableMap - the table map of the table to count rows in.
conn - the connection to use.
Returns:
the number of rows in the table.
Throws:
TorqueException - if the query could not be executed

count

@Deprecated
public int count(Criteria c,
                            Connection conn,
                            String columnName,
                            TableMap tableMap)
          throws TorqueException
Deprecated. use org.apache.toraue.criteria.Criteria instead of org.apache.toraue.util.Criteria. This method will be removed in Torque 4.1.

Returns the number of rows in a query.

Parameters:
c - Criteria to get the count for.
conn - Connection to use
columnName - Name of database Column which is counted. Preferably, use the primary key here.
tableMap - the table to count the columns in, or null to determine the table automatically from the criteria.
Returns:
number of rows matching the query provided.
Throws:
TorqueException - if the query could not be executed.

count

public int count(Criteria c,
                 Connection conn,
                 String columnName,
                 TableMap tableMap)
          throws TorqueException
Returns the number of rows in a query.

Parameters:
c - Criteria to get the count for.
conn - Connection to use
columnName - Name of database Column which is counted. Preferably, use the primary key here.
tableMap - the table to count the columns in, or null to determine the table automatically from the criteria.
Returns:
number of rows matching the query provided.
Throws:
TorqueException - if the query could not be executed.


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