org.openstreetmap.osmosis.core.mysql.v0_5.impl
Class RelationHistoryReader

java.lang.Object
  extended by org.openstreetmap.osmosis.core.mysql.common.BaseTableReader<T>
      extended by org.openstreetmap.osmosis.core.mysql.v0_5.impl.BaseEntityReader<EntityHistory<Relation>>
          extended by org.openstreetmap.osmosis.core.mysql.v0_5.impl.RelationHistoryReader
All Implemented Interfaces:
java.util.Iterator<EntityHistory<Relation>>, Releasable, ReleasableIterator<EntityHistory<Relation>>

public class RelationHistoryReader
extends BaseEntityReader<EntityHistory<Relation>>

Reads the set of relation changes from a database that have occurred within a time interval.

Author:
Brett Henderson

Nested Class Summary
 
Nested classes/interfaces inherited from class org.openstreetmap.osmosis.core.mysql.common.BaseTableReader
BaseTableReader.ReadResult<T>
 
Constructor Summary
RelationHistoryReader(DatabaseLoginCredentials loginCredentials, boolean readAllUsers, java.util.Date intervalBegin, java.util.Date intervalEnd)
          Creates a new instance.
 
Method Summary
protected  BaseTableReader.ReadResult<EntityHistory<Relation>> createNextValue(java.sql.ResultSet resultSet)
          Builds an entity object from the current recordset row.
protected  java.sql.ResultSet createResultSet(DatabaseContext queryDbCtx)
          Builds the result set that the reader will iterate over.
 
Methods inherited from class org.openstreetmap.osmosis.core.mysql.v0_5.impl.BaseEntityReader
readUserField
 
Methods inherited from class org.openstreetmap.osmosis.core.mysql.common.BaseTableReader
createLastValue, hasNext, next, release, remove
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

RelationHistoryReader

public RelationHistoryReader(DatabaseLoginCredentials loginCredentials,
                             boolean readAllUsers,
                             java.util.Date intervalBegin,
                             java.util.Date intervalEnd)
Creates a new instance.

Parameters:
loginCredentials - Contains all information required to connect to the database.
readAllUsers - If this flag is true, all users will be read from the database regardless of their public edits flag.
intervalBegin - Marks the beginning (inclusive) of the time interval to be checked.
intervalEnd - Marks the end (exclusive) of the time interval to be checked.
Method Detail

createResultSet

protected java.sql.ResultSet createResultSet(DatabaseContext queryDbCtx)
Builds the result set that the reader will iterate over.

Specified by:
createResultSet in class BaseTableReader<EntityHistory<Relation>>
Parameters:
queryDbCtx - The database context to query against.
Returns:
A result set positioned before the first record.

createNextValue

protected BaseTableReader.ReadResult<EntityHistory<Relation>> createNextValue(java.sql.ResultSet resultSet)
Builds an entity object from the current recordset row.

Specified by:
createNextValue in class BaseTableReader<EntityHistory<Relation>>
Parameters:
resultSet - The record set to retrieve the data from.
Returns:
The result of the read.