org.openstreetmap.osmosis.core.mysql.v0_5.impl
Class NodeHistoryReader
java.lang.Object
org.openstreetmap.osmosis.core.mysql.common.BaseTableReader<T>
org.openstreetmap.osmosis.core.mysql.v0_5.impl.BaseEntityReader<EntityHistory<Node>>
org.openstreetmap.osmosis.core.mysql.v0_5.impl.NodeHistoryReader
- All Implemented Interfaces:
- java.util.Iterator<EntityHistory<Node>>, Releasable, ReleasableIterator<EntityHistory<Node>>
public class NodeHistoryReader
- extends BaseEntityReader<EntityHistory<Node>>
Reads node history records for nodes that have been modified within a time
interval. All history items will be returned for the node from node creation
up to the end of the time interval. We need the complete history instead of
just the history within the interval so we can determine if the node was
created during the interval or prior to the interval, a version attribute
would eliminate the need for full history.
- Author:
- Brett Henderson
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
NodeHistoryReader
public NodeHistoryReader(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.
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<Node>>
- Parameters:
queryDbCtx
- The database context to query against.
- Returns:
- A result set positioned before the first record.
createNextValue
protected BaseTableReader.ReadResult<EntityHistory<Node>> createNextValue(java.sql.ResultSet resultSet)
- Builds an entity object from the current recordset row.
- Specified by:
createNextValue
in class BaseTableReader<EntityHistory<Node>>
- Parameters:
resultSet
- The record set to retrieve the data from.
- Returns:
- The result of the read.