com.db4o.internal.query.processor

Class QE

java.lang.Object

com.db4o.internal.query.processor.QE

All Implemented Interfaces:

Unversioned

Direct Known Subclasses:

QEAbstract, QEMulti, QENot

public class QE
extends java.lang.Object
implements Unversioned

Query Evaluator - Represents such things as >, >=, <, <=, EQUAL, LIKE, etc.

Field Summary

Fields

Modifier and Type	Field and Description
static int	EQUAL
static int	GREATER
static int	NULLS
static int	SMALLER

Constructor Summary

Constructors

Constructor and Description
QE()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
int	hashCode()
boolean	identity()
void	indexBitMap(boolean[] bits) Specifies which part of the index to take.
boolean	supportsIndex()

Methods inherited from class java.lang.Object

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

Field Detail

NULLS

public static final int NULLS

See Also:

Constant Field Values

SMALLER

public static final int SMALLER

See Also:

Constant Field Values

EQUAL

public static final int EQUAL

See Also:

Constant Field Values

GREATER

public static final int GREATER

See Also:

Constant Field Values

Constructor Detail

QE

public QE()

Method Detail

identity

public boolean identity()

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

indexBitMap

public void indexBitMap(boolean[] bits)

Specifies which part of the index to take. Array elements: [0] - smaller [1] - equal [2] - greater [3] - nulls

Parameters:

bits -

supportsIndex

public boolean supportsIndex()