Java tutorial
/** * DynamicReports - Free Java reporting library for creating reports dynamically * * Copyright (C) 2010 - 2014 Ricardo Mariaca * http://www.dynamicreports.org * * This file is part of DynamicReports. * * DynamicReports is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * DynamicReports is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with DynamicReports. If not, see <http://www.gnu.org/licenses/>. */ package net.sf.dynamicreports.report.builder.condition; import net.sf.dynamicreports.report.base.expression.AbstractSimpleExpression; import net.sf.dynamicreports.report.constant.Constants; import net.sf.dynamicreports.report.definition.DRIValue; import net.sf.dynamicreports.report.definition.ReportParameters; import org.apache.commons.lang3.Validate; /** * @author Ricardo Mariaca (r.mariaca@dynamicreports.org) */ public class UnEqualExpression extends AbstractSimpleExpression<Boolean> { private static final long serialVersionUID = Constants.SERIAL_VERSION_UID; private DRIValue<?> value; private Object[] values; public <T> UnEqualExpression(DRIValue<T> value, T... values) { Validate.notNull(value, "value must not be null"); Validate.noNullElements(values, "values must not contains null value"); this.value = value; this.values = values; } @Override public Boolean evaluate(ReportParameters reportParameters) { Object actualValue = reportParameters.getValue(value); for (Object value : values) { if (value.equals(actualValue)) { return false; } } return true; } @Override public Class<Boolean> getValueClass() { return Boolean.class; } }