QConClass SourceCode GPL - https://github.com/iboxdb/db4o-gpl

java.lang.Object
- com.db4o.internal.query.processor.QCon
- - com.db4o.internal.query.processor.QConObject
  - - com.db4o.internal.query.processor.QConClass

All Implemented Interfaces:

Visitor4, FieldFilterable, Constraint, Unversioned

Direct Known Subclasses:

QConPath
```
public class QConClass
extends QConObject
```
Class constraint on queries

Field Summary
- Fields inherited from class com.db4o.internal.query.processor.QCon
  _children, i_evaluator, i_parent

Constructor Summary

Constructors
Constructor Description

QConClass()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`canBeIndexLeaf()`
`protected boolean`	`canResolveByFieldIndex()`
`Constraint`	`equal()`	Used in conjunction with `Constraint.smaller()` or `Constraint.greater()` to create constraints like "smaller or equal", "greater or equal".
`java.lang.String`	`getClassName()`
`void`	`setProcessedByIndex(QCandidates candidates)`
`java.lang.String`	`toString()`

Methods inherited from class com.db4o.internal.query.processor.QConObject
byExample, canLoadByIndex, contains, endsWith, filter, getField, getObject, greater, hasObjectInParentPath, identity, identityID, internalSetProcessedByIndex, like, onSameFieldAs, smaller, startsWith, visit

Methods inherited from class com.db4o.internal.query.processor.QCon
and, childrenCount, container, evaluator, hasChildren, hasJoins, hasParent, id, iterateChildren, iterateJoins, not, or, parent, processedByIndex, setCandidates, streamLock, transaction

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - QConClass
```
public QConClass()
```
- Method Detail
  - getClassName
```
public java.lang.String getClassName()
```
  - canBeIndexLeaf
```
public boolean canBeIndexLeaf()
```
    Overrides:
    
    canBeIndexLeaf in class QConObject
  - canResolveByFieldIndex
```
protected boolean canResolveByFieldIndex()
```
    Overrides:
    
    canResolveByFieldIndex in class QConObject
  - equal
```
public Constraint equal()
```
    Description copied from interface: Constraint
    Used in conjunction with Constraint.smaller() or Constraint.greater() to create constraints like "smaller or equal", "greater or equal". For example:
    
    query.constrain(Pilot.class); query.descend("points").constrain(101).smaller().equal();
    
    will return all pilots with points <= 101.
    Specified by:
    
    equal in interface Constraint
    
    Overrides:
    
    equal in class QConObject
    
    Returns:
    
    this Constraint to allow the chaining of method calls.
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class QConObject
  - setProcessedByIndex
```
public void setProcessedByIndex(QCandidates candidates)
```
    Overrides:
    
    setProcessedByIndex in class QCon