org.wandora.query2

Class Operand

java.lang.Object

org.wandora.query2.Directive

org.wandora.query2.Operand

All Implemented Interfaces:

DirectiveUIHints.Provider

Direct Known Subclasses:

TopicOperand

public class Operand
extends Directive
implements DirectiveUIHints.Provider

Author:

olli

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.Object	cache
protected boolean	isCached
protected java.lang.Object	operand
protected boolean	stat

Fields inherited from class org.wandora.query2.Directive

DEFAULT_COL, DEFAULT_NS

Constructor Summary

Constructors

Constructor and Description
Operand()
Operand(java.lang.Object operand)

Method Summary

Modifier and Type	Method and Description
static void	endOperands(QueryContext context, Operand... os)
void	endQuery(QueryContext context) Signals end of query and performs any cleanup that may be needed.
java.lang.Object	getOperandObject(QueryContext context, ResultRow input)
java.lang.String	getOperandString(QueryContext context, ResultRow input)
DirectiveUIHints	getUIHints()
boolean	isStatic()
static Operand	makeOperand(java.lang.Object o)
static Operand[]	makeOperands(java.lang.Object[] os)
ResultIterator	queryIterator(QueryContext context, ResultRow input) You must call startQuery before calling this and endQuery after you are done with the result iterator.
static boolean	startOperands(QueryContext context, Operand... os)
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, debugStringParams, doQuery, from, from, from, from, from, from, from, from, from, from, getStandardAddonHints, getStandardAddonHints, 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

operand

protected java.lang.Object operand

stat

protected boolean stat

cache

protected java.lang.Object cache

isCached

protected boolean isCached

Constructor Detail

Operand

public Operand()

Operand

public Operand(java.lang.Object operand)

Method Detail

getUIHints

public DirectiveUIHints getUIHints()

Specified by:

getUIHints in interface DirectiveUIHints.Provider

makeOperand

public static Operand makeOperand(java.lang.Object o)

makeOperands

public static Operand[] makeOperands(java.lang.Object[] os)

startOperands

public static boolean startOperands(QueryContext context,
                                    Operand... os)
                             throws QueryException

Throws:

QueryException

endOperands

public static void endOperands(QueryContext context,
                               Operand... os)
                        throws QueryException

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

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

isStatic

public boolean isStatic()

Overrides:

isStatic in class Directive

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

getOperandString

public java.lang.String getOperandString(QueryContext context,
                                         ResultRow input)
                                  throws QueryException

Throws:

QueryException

getOperandObject

public java.lang.Object getOperandObject(QueryContext context,
                                         ResultRow input)
                                  throws QueryException

Throws:

QueryException