org.apache.derby.client.am.stmtcache
Class StatementKey

java.lang.Object
  org.apache.derby.client.am.stmtcache.StatementKey

public class StatementKey
extends java.lang.Object

A key representing a java.sql.PreparedStatement or a java.sql.CallableStatement.

The key takes a number of statement related attributes into account, and is used to insert and look up cached statement objects in the JDBC statement cache.

Key instances are created by a statement key factory.

See Also:

StatementKeyFactory

Field Summary

private int	autogeneratedKeys Tells if the associated statement returns auto-generated keys.
private int	concurrency The result set concurrency for the statement.
private int	holdability Result set holdability for the statement.
private boolean	isCallableStatement Tells if the key represents a CallableStatement.
private java.lang.String	schema The compilation schema for the statement.
private java.lang.String	sql The SQL query of the statement.
private int	type The result set type for the statement.

Constructor Summary

StatementKey(boolean isCallableStatement, java.lang.String sql, java.lang.String schema, int rsType, int rsConcurrency, int rsHoldability, int autogeneratedKeys)
Creates a statement key with all the common properties.

Method Summary

boolean	equals(java.lang.Object obj)
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

isCallableStatement

private final boolean isCallableStatement

Tells if the key represents a CallableStatement.

sql

private final java.lang.String sql

The SQL query of the statement.

schema

private final java.lang.String schema

The compilation schema for the statement.

type

private final int type

The result set type for the statement.

concurrency

private final int concurrency

The result set concurrency for the statement.

holdability

private final int holdability

Result set holdability for the statement.

autogeneratedKeys

private final int autogeneratedKeys

Tells if the associated statement returns auto-generated keys.

Constructor Detail

StatementKey

StatementKey(boolean isCallableStatement,
             java.lang.String sql,
             java.lang.String schema,
             int rsType,
             int rsConcurrency,
             int rsHoldability,
             int autogeneratedKeys)

Creates a statement key with all the common properties.

Parameters:

isCallableStatement - true is this is a key for a java.sql.CallableStatement

sql - SQL query string

schema - compilation schema

rsType - result set type

rsConcurrency - result set concurrency

rsHoldability - result set holdability

autogeneratedKeys - if auto-generated keys are returned

Throws:

java.lang.IllegalArgumentException - if schema is null

Method Detail

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object