com.db4o.nativequery.expr.build

Class ExpressionBuilder

java.lang.Object

com.db4o.nativequery.expr.build.ExpressionBuilder

public class ExpressionBuilder
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
ExpressionBuilder()

Method Summary

Methods

Modifier and Type	Method and Description
Expression	and(Expression left, Expression right) Optimizations: f&&X->f, t&&X->X, X&&X->X, X&&!X->f
BoolConstExpression	constant(java.lang.Boolean value) Optimizations: static bool roots
Expression	ifThenElse(Expression cond, Expression truePath, Expression falsePath)
Expression	not(Expression expr) Optimizations: !(Bool)->(!Bool), !!X->X, !(X==Bool)->(X==!Bool)
Expression	or(Expression left, Expression right) Optimizations: X||t->t, f||X->X, X||X->X, X||!X->t

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionBuilder

public ExpressionBuilder()

Method Detail

not

public Expression not(Expression expr)

Optimizations: !(Bool)->(!Bool), !!X->X, !(X==Bool)->(X==!Bool)

and

public Expression and(Expression left,
             Expression right)

Optimizations: f&&X->f, t&&X->X, X&&X->X, X&&!X->f

or

public Expression or(Expression left,
            Expression right)

Optimizations: X||t->t, f||X->X, X||X->X, X||!X->t

constant

public BoolConstExpression constant(java.lang.Boolean value)

Optimizations: static bool roots

ifThenElse

public Expression ifThenElse(Expression cond,
                    Expression truePath,
                    Expression falsePath)