public final Class ColumnNameCache

Class Inheritance

extends Object

Annotations

Imports

Deprecated

(since 5.5) Scheduled for removal in 6.0 as ResultSet wrapping is no longer needed

Cache of column-name -> column-index resolutions

Field Summary

Modifier and Type	Field and Description
private final ConcurrentHashMap<String, Integer>	columnNameToIndexCache
private static final float	LOAD_FACTOR

Access	Constructor and Description
public	ColumnNameCache(int The number of columns to be cached. columnCount) Constructs a ColumnNameCache

Modifier and Type	Method and Description
public Integer	Returns: The index getIndexForColumnName(String The name/alias of the column columnName, ResultSet The ResultSet rs) Resolve the column name/alias to its index

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

columnNameToIndexCache	back to summary
private final ConcurrentHashMap<String, Integer> columnNameToIndexCache

LOAD_FACTOR	back to summary
private static final float LOAD_FACTOR

ColumnNameCache	back to summary
public ColumnNameCache(int columnCount) Constructs a ColumnNameCache Parameters columnCount:int The number of columns to be cached.

ColumnNameCache

public ColumnNameCache(int columnCount)

Constructs a ColumnNameCache

Parameters

getIndexForColumnName	back to summary
public Integer getIndexForColumnName(String columnName, ResultSet rs) throws SQLException Resolve the column name/alias to its index Parameters columnName:String The name/alias of the column rs:ResultSet The ResultSet Returns:Integer The index Exceptions SQLException: INdicates a problems accessing the underlying JDBC ResultSet

getIndexForColumnName

public Integer getIndexForColumnName(String columnName, ResultSet rs) throws SQLException

Resolve the column name/alias to its index

Parameters

Returns:Integer

The index

Exceptions