init

java/org/apache/el/parser/AstNegative.java

@@ -0,0 +1,84 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/* Generated By:JJTree: Do not edit this line. AstNegative.java */
+
+package org.apache.el.parser;
+
+import java.math.BigDecimal;
+import java.math.BigInteger;
+
+import javax.el.ELException;
+
+import org.apache.el.lang.EvaluationContext;
+
+
+/**
+ * @author Jacob Hookom [jacob@hookom.net]
+ */
+public final class AstNegative extends SimpleNode {
+    public AstNegative(int id) {
+        super(id);
+    }
+
+    @Override
+    public Class<?> getType(EvaluationContext ctx)
+            throws ELException {
+        return Number.class;
+    }
+
+    @Override
+    public Object getValue(EvaluationContext ctx)
+            throws ELException {
+        Object obj = this.children[0].getValue(ctx);
+
+        if (obj == null) {
+            return Long.valueOf(0);
+        }
+        if (obj instanceof BigDecimal) {
+            return ((BigDecimal) obj).negate();
+        }
+        if (obj instanceof BigInteger) {
+            return ((BigInteger) obj).negate();
+        }
+        if (obj instanceof String) {
+            if (isStringFloat((String) obj)) {
+                return Double.valueOf(-Double.parseDouble((String) obj));
+            }
+            return Long.valueOf(-Long.parseLong((String) obj));
+        }
+        if (obj instanceof Long) {
+            return Long.valueOf(-((Long) obj).longValue());
+        }
+        if (obj instanceof Double) {
+            return Double.valueOf(-((Double) obj).doubleValue());
+        }
+        if (obj instanceof Integer) {
+            return Integer.valueOf(-((Integer) obj).intValue());
+        }
+        if (obj instanceof Float) {
+            return Float.valueOf(-((Float) obj).floatValue());
+        }
+        if (obj instanceof Short) {
+            return Short.valueOf((short) -((Short) obj).shortValue());
+        }
+        if (obj instanceof Byte) {
+            return Byte.valueOf((byte) -((Byte) obj).byteValue());
+        }
+        Long num = (Long) coerceToNumber(ctx, obj, Long.class);
+        return Long.valueOf(-num.longValue());
+    }
+}