classinput.java

来自「derby database source code.good for you.」· Java 代码 · 共 50 行

/*

   Derby - Class org.apache.derby.iapi.services.classfile.ClassInput

   Copyright 2000, 2004 The Apache Software Foundation or its licensors, as applicable.

   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

      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.derby.iapi.services.classfile;

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


/**	A wrapper around DataInputStream to provide input functions in terms
    of the types defined on pages 83.
 */

class ClassInput extends DataInputStream {

	ClassInput(InputStream in) {
		super(in);
	}

	int getU2() throws IOException {
		return readUnsignedShort();
	}
	int getU4() throws IOException {
		return readInt();
	}
	byte[] getU1Array(int count) throws IOException {
		byte[] b = new byte[count];
		readFully(b);
		return b;
	}
}