org.wandora.query2

Class Eval

java.lang.Object

org.wandora.query2.Directive

org.wandora.query2.Eval

public class Eval
extends Directive

Author:

olli

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	clearHashMapBetweenJoins
protected javax.script.CompiledScript	compiled
protected java.lang.Object	constructorParam
protected QueryContext	context
protected ResultRow	input
protected java.util.HashMap<java.lang.String,java.lang.Object>	objects
protected java.lang.String	script
protected javax.script.ScriptEngine	scriptEngine

Fields inherited from class org.wandora.query2.Directive

DEFAULT_COL, DEFAULT_NS

Constructor Summary

Constructors

Constructor and Description
Eval()
Eval(java.lang.String script)
Eval(java.lang.String script, java.lang.Object param)

Method Summary

Modifier and Type	Method and Description
java.lang.String	debugStringParams()
ResultIterator	empty()
void	endQuery(QueryContext context) Signals end of query and performs any cleanup that may be needed.
java.lang.Object	eval(java.lang.Object val)
java.lang.Object	get(java.lang.String key)
ResultIterator	queryIterator(QueryContext context, ResultRow input) You must call startQuery before calling this and endQuery after you are done with the result iterator.
java.lang.Object	set(java.lang.String key, java.lang.Object value)
boolean	startQuery(QueryContext context) Prepares the query for execution.

Methods inherited from class org.wandora.query2.Directive

as, as, debugString, debugString, debugStringInner, debugStringInner, debugStringInner, debugStringParams, doQuery, from, from, from, from, from, from, from, from, from, from, getStandardAddonHints, getStandardAddonHints, isStatic, join, main, of, query, to, to, to, to, to, where, where

Methods inherited from class java.lang.Object

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

Field Detail

script

protected java.lang.String script

scriptEngine

protected javax.script.ScriptEngine scriptEngine

compiled

protected javax.script.CompiledScript compiled

objects

protected java.util.HashMap<java.lang.String,java.lang.Object> objects

constructorParam

protected java.lang.Object constructorParam

clearHashMapBetweenJoins

protected boolean clearHashMapBetweenJoins

input

protected ResultRow input

context

protected QueryContext context

Constructor Detail

Eval

public Eval()

Eval

public Eval(java.lang.String script,
            java.lang.Object param)

Eval

public Eval(java.lang.String script)

Method Detail

endQuery

public void endQuery(QueryContext context)
              throws QueryException

Description copied from class: Directive

Signals end of query and performs any cleanup that may be needed. Extending classes must propagate the call to any contained queries.

Overrides:

endQuery in class Directive

Throws:

QueryException

startQuery

public boolean startQuery(QueryContext context)
                   throws QueryException

Description copied from class: Directive

Prepares the query for execution. Extending classes must propagate the call to any contained queries.

Overrides:

startQuery in class Directive

Throws:

QueryException

debugStringParams

public java.lang.String debugStringParams()

Overrides:

debugStringParams in class Directive

eval

public java.lang.Object eval(java.lang.Object val)
                      throws QueryException

Throws:

QueryException

get

public java.lang.Object get(java.lang.String key)

set

public java.lang.Object set(java.lang.String key,
                            java.lang.Object value)

empty

public ResultIterator empty()

queryIterator

public ResultIterator queryIterator(QueryContext context,
                                    ResultRow input)
                             throws QueryException

Description copied from class: Directive

You must call startQuery before calling this and endQuery after you are done with the result iterator. You should also call dispose of the result iterator when you're done.

Overrides:

queryIterator in class Directive

Throws:

QueryException