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/*
 *  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.tomcat.util.bcel.classfile;

import java.io.DataInputStream;
import java.io.IOException;

/**
 * base class for parameter annotations
 *
 * @author  D. Brosius
 * @since 6.0
 */
public abstract class ParameterAnnotations extends Attribute {

    private static final long serialVersionUID = -8831779739803248091L;
    private int num_parameters;
    private ParameterAnnotationEntry[] parameter_annotation_table; // Table of parameter annotations


    /**
     * @param name_index Index pointing to the name Code
     * @param length Content length in bytes
     * @param file Input stream
     * @param constant_pool Array of constants
     */
    ParameterAnnotations(int name_index, int length,
            DataInputStream file, ConstantPool constant_pool) throws IOException {
        this(name_index, length, (ParameterAnnotationEntry[]) null,
                constant_pool);
        num_parameters = (file.readUnsignedByte());
        parameter_annotation_table = new ParameterAnnotationEntry[num_parameters];
        for (int i = 0; i < num_parameters; i++) {
            parameter_annotation_table[i] = new ParameterAnnotationEntry(file, constant_pool);
        }
    }


    /**
     * @param name_index Index pointing to the name Code
     * @param length Content length in bytes
     * @param parameter_annotation_table the actual parameter annotations
     * @param constant_pool Array of constants
     */
    public ParameterAnnotations(int name_index, int length,
            ParameterAnnotationEntry[] parameter_annotation_table, ConstantPool constant_pool) {
        super(name_index, length, constant_pool);
        setParameterAnnotationTable(parameter_annotation_table);
    }


    /**
     * @param parameter_annotation_table the entries to set in this parameter annotation
     */
    public final void setParameterAnnotationTable(
            ParameterAnnotationEntry[] parameter_annotation_table ) {
        this.parameter_annotation_table = parameter_annotation_table;
        num_parameters = (parameter_annotation_table == null)
                ? 0
                : parameter_annotation_table.length;
    }
}




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