85 lines
2.7 KiB
Java
85 lines
2.7 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* Generated By:JJTree: Do not edit this line. AstNegative.java */
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package org.apache.el.parser;
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import java.math.BigDecimal;
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import java.math.BigInteger;
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import javax.el.ELException;
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import org.apache.el.lang.EvaluationContext;
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/**
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* @author Jacob Hookom [jacob@hookom.net]
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*/
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public final class AstNegative extends SimpleNode {
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public AstNegative(int id) {
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super(id);
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}
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@Override
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public Class<?> getType(EvaluationContext ctx)
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throws ELException {
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return Number.class;
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}
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@Override
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public Object getValue(EvaluationContext ctx)
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throws ELException {
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Object obj = this.children[0].getValue(ctx);
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if (obj == null) {
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return Long.valueOf(0);
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}
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if (obj instanceof BigDecimal) {
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return ((BigDecimal) obj).negate();
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}
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if (obj instanceof BigInteger) {
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return ((BigInteger) obj).negate();
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}
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if (obj instanceof String) {
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if (isStringFloat((String) obj)) {
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return Double.valueOf(-Double.parseDouble((String) obj));
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}
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return Long.valueOf(-Long.parseLong((String) obj));
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}
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if (obj instanceof Long) {
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return Long.valueOf(-((Long) obj).longValue());
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}
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if (obj instanceof Double) {
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return Double.valueOf(-((Double) obj).doubleValue());
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}
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if (obj instanceof Integer) {
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return Integer.valueOf(-((Integer) obj).intValue());
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}
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if (obj instanceof Float) {
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return Float.valueOf(-((Float) obj).floatValue());
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}
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if (obj instanceof Short) {
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return Short.valueOf((short) -((Short) obj).shortValue());
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}
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if (obj instanceof Byte) {
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return Byte.valueOf((byte) -((Byte) obj).byteValue());
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}
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Long num = (Long) coerceToNumber(ctx, obj, Long.class);
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return Long.valueOf(-num.longValue());
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}
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}
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