net.sf.mmm.util.query.base.expression

Class SqlOperator.SqlOperatorNumber

java.lang.Object

net.sf.mmm.util.query.base.expression.SqlOperator<Number,Number>

net.sf.mmm.util.query.base.expression.SqlOperator.SqlOperatorNumber

Enclosing class:

SqlOperator<T,S>

public abstract static class SqlOperator.SqlOperatorNumber
extends SqlOperator<Number,Number>

Abstract base implementation of SqlOperator for Number comparison operations.

Nested Class Summary

Nested classes/interfaces inherited from class net.sf.mmm.util.query.base.expression.SqlOperator

SqlOperator.SqlOperatorBetween<N extends Number>, SqlOperator.SqlOperatorContainment, SqlOperator.SqlOperatorEmptyness, SqlOperator.SqlOperatorLike, SqlOperator.SqlOperatorNumber, SqlOperator.SqlOperatorString

Field Summary

Fields inherited from class net.sf.mmm.util.query.base.expression.SqlOperator

BETWEEN, EMPTY, EQUAL, GREATER_OR_EQUAL, GREATER_THAN, IN, LESS_OR_EQUAL, LESS_THAN, LIKE, NOT_BETWEEN, NOT_EMPTY, NOT_EQUAL, NOT_IN, NOT_LIKE

Constructor Summary

Constructors

Constructor and Description
SqlOperatorNumber(String sql) The constructor.

Method Summary

Modifier and Type	Method and Description
protected abstract boolean	eval(int delta)
protected boolean	evalNullAndNotNull()
boolean	evaluate(Number arg1, Number arg2) This method evaluates this SqlOperator for the given arguments.

Methods inherited from class net.sf.mmm.util.query.base.expression.SqlOperator

getSql, getType, negate, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SqlOperatorNumber

public SqlOperatorNumber(String sql)

The constructor.

Parameters:

sql - - see SqlOperator.getSql().

Method Detail

eval

protected abstract boolean eval(int delta)

Parameters:

delta - the result of Comparable.compareTo(Object).

Returns:

the result of evaluate(Number, Number).

evalNullAndNotNull

protected boolean evalNullAndNotNull()

Returns:

the result of evaluate(Number, Number) if one argument is null and the other is NOT null.

evaluate

public boolean evaluate(Number arg1,
                        Number arg2)

Description copied from class: SqlOperator

This method evaluates this SqlOperator for the given arguments.

Specified by:

evaluate in class SqlOperator<Number,Number>

Parameters:

arg1 - is the first argument.

arg2 - is the second argument.

Returns:

the result of the SqlOperator applied to the given arguments.