org.neodatis.odb.core.query.criteria

Class ComposedExpression

java.lang.Object

org.neodatis.odb.core.query.criteria.AbstractExpression

org.neodatis.odb.core.query.criteria.ComposedExpression

All Implemented Interfaces:

java.io.Serializable, ICriterion, IExpression

Direct Known Subclasses:

And, Or

public abstract class ComposedExpression
extends AbstractExpression

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ComposedExpression()

Method Summary

Modifier and Type	Method and Description
ComposedExpression	add(ICriterion criterion)
IOdbList<java.lang.String>	getAllInvolvedFields() to be able to optimize query execution.
ICriterion	getCriterion(int index)
int	getNbCriteria()
AttributeValuesMap	getValues()
boolean	isEmpty()
void	ready() a method to explicitly indicate that the criteria is ready.
void	setQuery(IQuery query)

Methods inherited from class org.neodatis.odb.core.query.criteria.AbstractExpression

canUseIndex, getQuery

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.neodatis.odb.core.query.criteria.ICriterion

match

Constructor Detail

ComposedExpression

public ComposedExpression()

Method Detail

add

public ComposedExpression add(ICriterion criterion)

getAllInvolvedFields

public IOdbList<java.lang.String> getAllInvolvedFields()

Description copied from interface: ICriterion

to be able to optimize query execution. Get only the field involved in the query instead of getting all the object

Returns:

All involved fields in criteria, List of String

isEmpty

public boolean isEmpty()

getValues

public AttributeValuesMap getValues()

getNbCriteria

public int getNbCriteria()

getCriterion

public ICriterion getCriterion(int index)

ready

public void ready()

Description copied from interface: ICriterion

a method to explicitly indicate that the criteria is ready.

setQuery

public void setQuery(IQuery query)

Specified by:

setQuery in interface ICriterion

Overrides:

setQuery in class AbstractExpression