org.apache.metamodel.data

Class CachingDataSetHeader

java.lang.Object

org.apache.metamodel.data.SimpleDataSetHeader

org.apache.metamodel.data.CachingDataSetHeader

All Implemented Interfaces:

Serializable, DataSetHeader

public final class CachingDataSetHeader
extends SimpleDataSetHeader
implements DataSetHeader

Most common implementation of DataSetHeader. This implementation is 'caching' in the sense that index values of selectitems are cached in a map to provide quick access when looking up by SelectItem or Column.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CachingDataSetHeader(List<SelectItem> items)

Method Summary

Modifier and Type	Method and Description
int	indexOf(Column column)
int	indexOf(SelectItem item)

Methods inherited from class org.apache.metamodel.data.SimpleDataSetHeader

equals, fromColumns, getSelectItem, getSelectItems, hashCode, size, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.metamodel.data.DataSetHeader

getSelectItem, getSelectItems, size

Constructor Detail

CachingDataSetHeader

public CachingDataSetHeader(List<SelectItem> items)

Method Detail

indexOf

public int indexOf(Column column)

Specified by:

indexOf in interface DataSetHeader

Overrides:

indexOf in class SimpleDataSetHeader

indexOf

public final int indexOf(SelectItem item)

Specified by:

indexOf in interface DataSetHeader

Overrides:

indexOf in class SimpleDataSetHeader