/*
 * Copyright 2002-2016 the original author or authors.
 *
 * Licensed 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
 *
 *      https://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
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 */

package org.springframework.expression.spel.standard;

Token Kinds.
Author:Andy Clement
Since:3.0
/** * Token Kinds. * * @author Andy Clement * @since 3.0 */
enum TokenKind { // ordered by priority - operands first LITERAL_INT, LITERAL_LONG, LITERAL_HEXINT, LITERAL_HEXLONG, LITERAL_STRING, LITERAL_REAL, LITERAL_REAL_FLOAT, LPAREN("("), RPAREN(")"), COMMA(","), IDENTIFIER, COLON(":"), HASH("#"), RSQUARE("]"), LSQUARE("["), LCURLY("{"), RCURLY("}"), DOT("."), PLUS("+"), STAR("*"), MINUS("-"), SELECT_FIRST("^["), SELECT_LAST("$["), QMARK("?"), PROJECT("!["), DIV("/"), GE(">="), GT(">"), LE("<="), LT("<"), EQ("=="), NE("!="), MOD("%"), NOT("!"), ASSIGN("="), INSTANCEOF("instanceof"), MATCHES("matches"), BETWEEN("between"), SELECT("?["), POWER("^"), ELVIS("?:"), SAFE_NAVI("?."), BEAN_REF("@"), FACTORY_BEAN_REF("&"), SYMBOLIC_OR("||"), SYMBOLIC_AND("&&"), INC("++"), DEC("--"); final char[] tokenChars; private final boolean hasPayload; // is there more to this token than simply the kind private TokenKind(String tokenString) { this.tokenChars = tokenString.toCharArray(); this.hasPayload = (this.tokenChars.length == 0); } private TokenKind() { this(""); } @Override public String toString() { return (name() + (this.tokenChars.length !=0 ? "(" + new String(this.tokenChars) +")" : "")); } public boolean hasPayload() { return this.hasPayload; } public int getLength() { return this.tokenChars.length; } }