scriptella.core
Class QueryExecutor

java.lang.Object
  scriptella.core.QueryExecutor

All Implemented Interfaces:

ExecutableElement

public final class QueryExecutor
extends java.lang.Object

<query> element executor.

Version:

1.0

Author:

Fyodor Kupolov

Field Summary

protected boolean	debug
protected java.util.logging.Logger	log

Method Summary

protected void	execute(Connection connection, Resource resource, DynamicContext ctx) Executes a script or a query resource using the specified connection.
void	execute(DynamicContext ctx) Executes the element.
Resource	getContent(DialectIdentifier dialectIdentifier) Returns content satisfying dialect information.
T	getElement() Returns scripting element specified in constructor
Location	getLocation() A short for getElement().
static ExecutableElement	prepare(QueryEl queryEl)
protected ContentEl	prepareContent(ContentEl content) Prepares the content for later execution.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

log

protected final java.util.logging.Logger log

debug

protected final boolean debug

Method Detail

execute

protected void execute(Connection connection,
                       Resource resource,
                       DynamicContext ctx)

Executes a script or a query resource using the specified connection.

Parameters:

connection - connection to use for element execution.

resource - query/script content to execute.

ctx - dynamic context to use for variables, etc.

prepare

public static ExecutableElement prepare(QueryEl queryEl)

getElement

public T getElement()

Returns scripting element specified in constructor

Returns:

scripting element

execute

public final void execute(DynamicContext ctx)

Description copied from interface: ExecutableElement

Executes the element.

Note: the context may be decorated by DynamicContextDecorator.

Specified by:

execute in interface ExecutableElement

Parameters:

ctx - context to use.

getContent

public Resource getContent(DialectIdentifier dialectIdentifier)

Returns content satisfying dialect information.

This method caches contents based on dialects. For now we assume dialectIdentifier is constant for element.

Parameters:

dialectIdentifier - dialect identifier.

Returns:

content for dialect. Not null.

getLocation

public Location getLocation()

A short for getElement().getLocation()

Returns:

element location.

prepareContent

protected ContentEl prepareContent(ContentEl content)

Prepares the content for later execution.

If content is dynamic, i.e. contains includes with bind variables, the properties substitutor is specified, otherwise no properties .

Parameters:

content - content to traverse.

Returns:

the same content object for convenience only.