| /******************************************************************************* |
| * Copyright (c) 2006 Oracle Corporation. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Cameron Bateman/Oracle - initial API and implementation |
| * |
| ********************************************************************************/ |
| |
| package org.eclipse.jst.jsf.common.internal.types; |
| |
| |
| /** |
| * Common super-type for Float and Integer literals |
| * @author cbateman |
| * |
| */ |
| public abstract class NumericTypeLiteral extends LiteralType |
| { |
| /** |
| * @param signature |
| */ |
| protected NumericTypeLiteral(String signature) |
| { |
| super(signature); |
| } |
| |
| /** |
| * @return the boxed form of the numeric literal value |
| */ |
| protected abstract Number getBoxedValue(); |
| |
| public Number coerceToNumber(Class T) throws TypeCoercionException |
| { |
| Number boxedLiteralValue = getBoxedValue(); |
| |
| if (T == Double.class || T == Double.TYPE) |
| { |
| return new Double(boxedLiteralValue.doubleValue()); |
| } |
| else if (T == Float.class || T == Float.TYPE) |
| { |
| return new Float(boxedLiteralValue.floatValue()); |
| } |
| else if (T == Long.class || T == Long.TYPE) |
| { |
| return boxedLiteralValue; |
| } |
| else if (T == Integer.class || T == Integer.TYPE) |
| { |
| return Integer.valueOf(boxedLiteralValue.intValue()); |
| } |
| else if (T == Short.class || T == Short.TYPE) |
| { |
| return Short.valueOf(boxedLiteralValue.shortValue()); |
| } |
| else if (T == Byte.class || T == Byte.TYPE) |
| { |
| return Byte.valueOf(boxedLiteralValue.byteValue()); |
| } |
| else |
| { |
| return null; |
| } |
| } |
| |
| public String getLiteralValue() |
| { |
| return getBoxedValue().toString(); |
| } |
| |
| public Object getLiteralValueRaw() |
| { |
| return getBoxedValue(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jst.jsf.core.internal.types.LiteralType#coerceToBoolean() |
| */ |
| public Boolean coerceToBoolean() throws TypeCoercionException { |
| // JSP.2.8.5 does not provide for number -> boolean coercion |
| throw new TypeCoercionException("Cannot coerce number to boolean"); //$NON-NLS-1$ |
| } |
| |
| |
| } |