Quelle ExpressionFactoryImpl.java Sprache: JAVA

/*
* 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.
*/
package org.apache.el;

import jakarta.el.ELContext;
import jakarta.el.ELResolver;
import jakarta.el.ExpressionFactory;
import jakarta.el.MethodExpression;
import jakarta.el.ValueExpression;

import org.apache.el.lang.ELSupport;
import org.apache.el.lang.ExpressionBuilder;
import org.apache.el.stream.StreamELResolverImpl;
import org.apache.el.util.ExceptionUtils;
import org.apache.el.util.MessageFactory;

/**
* @see jakarta.el.ExpressionFactory
*
* @author Jacob Hookom [jacob@hookom.net]
*/
@aQute.bnd.annotation.spi.ServiceProvider(value=ExpressionFactory.class)
public class ExpressionFactoryImpl extends ExpressionFactory {

    static {
        ExceptionUtils.preload();
    }

    @Override
    public <T> T coerceToType(Object obj, Class<T> type) {
        return ELSupport.coerceToType(null, obj, type);
    }

    @Override
    public MethodExpression createMethodExpression(ELContext context,
            String expression, Class<?> expectedReturnType,
            Class<?>[] expectedParamTypes) {
        ExpressionBuilder builder = new ExpressionBuilder(expression, context);
        return builder.createMethodExpression(expectedReturnType,
                expectedParamTypes);
    }

    @Override
    public ValueExpression createValueExpression(ELContext context,
            String expression, Class<?> expectedType) {
        if (expectedType == null) {
            throw new NullPointerException(MessageFactory
                    .get("error.value.expectedType"));
        }
        ExpressionBuilder builder = new ExpressionBuilder(expression, context);
        return builder.createValueExpression(expectedType);
    }

    @Override
    public ValueExpression createValueExpression(Object instance,
            Class<?> expectedType) {
        if (expectedType == null) {
            throw new NullPointerException(MessageFactory
                    .get("error.value.expectedType"));
        }
        return new ValueExpressionLiteral(instance, expectedType);
    }

    @Override
    public ELResolver getStreamELResolver() {
        return new StreamELResolverImpl();
    }
}

quality100%

¤ Dauer der Verarbeitung: 0.1 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.