jco$metadata$type1data.java

SAP这个系统的一个转换器

// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) 
// Source File Name:   JCO.java

package com.sap.mw.jco;

import java.io.Serializable;

// Referenced classes of package com.sap.mw.jco:
//            JCO

protected class JCO$MetaData$Type1Data
    implements Cloneable, Serializable
{

    public Object clone()
    {
        try
        {
            JCO$MetaData$Type1Data obj = (JCO$MetaData$Type1Data)super.clone();
            obj.copy(this);
            return obj;
        }
        catch(CloneNotSupportedException ex)
        {
            return null;
        }
    }

    protected void copy(JCO$MetaData$Type1Data type1Data)
    {
        if(type1Data == null)
        {
            return;
        } else
        {
            ensureCapacity(type1Data.num_fields);
            num_fields = type1Data.num_fields;
            System.arraycopy(type1Data.name, 0, name, 0, num_fields);
            System.arraycopy(type1Data.offset, 0, offset, 0, num_fields);
            System.arraycopy(type1Data.boffset, 0, boffset, 0, num_fields);
            System.arraycopy(type1Data.length, 0, length, 0, num_fields);
            System.arraycopy(type1Data.blength, 0, blength, 0, num_fields);
            System.arraycopy(type1Data.type, 0, type, 0, num_fields);
            System.arraycopy(type1Data.decimals, 0, decimals, 0, num_fields);
            System.arraycopy(type1Data.flags, 0, flags, 0, num_fields);
            return;
        }
    }

    private void ensureCapacity(int capacity)
    {
        if(name.length < capacity)
        {
            String old_name[] = name;
            name = new String[capacity];
            System.arraycopy(old_name, 0, name, 0, old_name.length);
            int old_offset[] = offset;
            offset = new int[capacity];
            System.arraycopy(old_offset, 0, offset, 0, old_offset.length);
            int old_boffset[] = boffset;
            boffset = new int[capacity];
            System.arraycopy(old_boffset, 0, boffset, 0, old_boffset.length);
            int old_length[] = length;
            length = new int[capacity];
            System.arraycopy(old_length, 0, length, 0, old_length.length);
            int old_blength[] = blength;
            blength = new int[capacity];
            System.arraycopy(old_blength, 0, blength, 0, old_blength.length);
            byte old_type[] = type;
            type = new byte[capacity];
            System.arraycopy(old_type, 0, type, 0, old_type.length);
            byte old_decimals[] = decimals;
            decimals = new byte[capacity];
            System.arraycopy(old_decimals, 0, decimals, 0, old_decimals.length);
            byte old_flags[] = flags;
            flags = new byte[capacity];
            System.arraycopy(old_flags, 0, flags, 0, old_flags.length);
        }
    }

    private int countNumFields(JCO$MetaData metaData, int fieldCount)
    {
        for(int i = 0; i < metaData.ds(); i++)
            if(metaData.getType(i) == 17)
                fieldCount = countNumFields((JCO$MetaData)metaData.a(i), fieldCount);
            else
                fieldCount++;

        return fieldCount;
    }

    protected void constructMetaData()
    {
        num_fields = countNumFields(this._cls0.this, 0);
        ensureCapacity(num_fields);
        constructMetaData(this._cls0.this, 0, "", 0);
        boffset[0] = 0;
        for(int i = 0; i < num_fields - 1; i++)
            boffset[i + 1] = boffset[i] + blength[i];

    }

    private final int constructMetaData(JCO$MetaData metaData, int pos, String prefix, int structOffset)
    {
        for(int i = 0; i < metaData.ds(); i++)
            if(metaData.getType(i) == 17)
            {
                pos = constructMetaData((JCO$MetaData)metaData.a(i), pos, prefix + metaData.a[i] + '-', structOffset + metaData.offset[i]);
            } else
            {
                name[pos] = prefix + metaData.name[i];
                offset[pos] = structOffset + metaData.offset[i];
                lengt