org.openstreetmap.osmosis.core.pgsql.v0_6.impl
Class EntityTableReader<T extends Entity>
java.lang.Object
org.openstreetmap.osmosis.core.pgsql.common.BaseTableReader<T>
org.openstreetmap.osmosis.core.pgsql.v0_6.impl.EntityTableReader<T>
- Type Parameters:
T
- The entity type to be supported.
- All Implemented Interfaces:
- java.util.Iterator<T>, Releasable, ReleasableIterator<T>
public class EntityTableReader<T extends Entity>
- extends BaseTableReader<T>
Reads entities from a database ordered by their identifier. These entities
won't be populated with tags.
- Author:
- Brett Henderson
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
EntityTableReader
public EntityTableReader(DatabaseContext dbCtx,
EntityMapper<T> entityBuilder)
- Creates a new instance.
- Parameters:
dbCtx
- The active connection to use for reading from the database.entityBuilder
- The entity builder implementation to utilise.
EntityTableReader
public EntityTableReader(DatabaseContext dbCtx,
EntityMapper<T> entityBuilder,
java.lang.String constraintTable)
- Creates a new instance with a constrained search.
- Parameters:
dbCtx
- The active connection to use for reading from the database.entityBuilder
- The entity builder implementation to utilise.constraintTable
- The table containing a column named id defining the list of
entities to be returned.
createResultSet
protected java.sql.ResultSet createResultSet(DatabaseContext queryDbCtx)
- Builds the result set that the reader will iterate over.
- Specified by:
createResultSet
in class BaseTableReader<T extends Entity>
- Parameters:
queryDbCtx
- The database context to query against.
- Returns:
- A result set positioned before the first record.
createNextValue
protected BaseTableReader.ReadResult<T> createNextValue(java.sql.ResultSet resultSet)
- Builds an entity object from the current recordset row.
- Specified by:
createNextValue
in class BaseTableReader<T extends Entity>
- Parameters:
resultSet
- The record set to retrieve the data from.
- Returns:
- The result of the read.