net.sourceforge.msscodefactory.v1_10.MSSBamRam.MSSBamRamAttachmentTable.java Source code

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Here is the source code for net.sourceforge.msscodefactory.v1_10.MSSBamRam.MSSBamRamAttachmentTable.java

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// Description: Java6 in-memory RAM DbIO implementation for Attachment.

/*
 *   MSS Code Factory 1.10
 *
 *   Copyright (c) 2012 Mark Sobkow
 *   
 *   This program is available as free software under the GNU GPL v3, or
 *   under a commercial license from Mark Sobkow.  For commercial licensing
 *   details, please contact msobkow@sasktel.net.
 *   
 *   Under the terms of the GPL:
 *   
 *      This program is free software: you can redistribute it and/or modify
 *      it under the terms of the GNU General Public License as published by
 *      the Free Software Foundation, either version 3 of the License, or
 *      (at your option) any later version.
 *     
 *      This program is distributed in the hope that it will be useful,
 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *      GNU General Public License for more details.
 *     
 *      You should have received a copy of the GNU General Public License
 *      along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *   
 * ***********************************************************************
 *
 *   Code manufactured
 *   by MSS Code Factory version 1.9.3294
 *
 *   $Revision: 26 $
 */

package net.sourceforge.msscodefactory.v1_10.MSSBamRam;

import java.sql.*;
import java.util.*;
import net.sourceforge.msscodefactory.cflib.v1_9.CFLib.*;
import org.apache.commons.codec.binary.Base64;
import net.sourceforge.msscodefactory.v1_10.MSSBam.*;
import net.sourceforge.msscodefactory.v1_10.MSSBamBL.*;
import net.sourceforge.msscodefactory.v1_10.MSSBamBLRam.*;

/*
 *   MSSBamRamAttachmentTable in-memory RAM DbIO implementation
 *   for Attachment.
 */
public class MSSBamRamAttachmentTable implements IMSSBamAttachmentTable {
    private MSSBamBLRamSchema schema;
    private Map<MSSBamAttachmentPKey, MSSBamAttachmentBuff> dictByPKey = new HashMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff>();
    private SortedMap<MSSBamAttachmentByContactIdxKey, SortedMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff>> dictByContactIdx = new TreeMap<MSSBamAttachmentByContactIdxKey, SortedMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff>>();
    private SortedMap<MSSBamAttachmentByUDescrIdxKey, MSSBamAttachmentBuff> dictByUDescrIdx = new TreeMap<MSSBamAttachmentByUDescrIdxKey, MSSBamAttachmentBuff>();
    private SortedMap<MSSBamAttachmentByMimeTypeIdxKey, SortedMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff>> dictByMimeTypeIdx = new TreeMap<MSSBamAttachmentByMimeTypeIdxKey, SortedMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff>>();

    public MSSBamRamAttachmentTable(MSSBamBLRamSchema argSchema) {
        schema = argSchema;
    }

    public void createAttachment(MSSBamAuthorization Authorization, MSSBamAttachmentBuff Buff) {
        MSSBamAttachmentPKey pkey = schema.getFactoryAttachment().newPKey();

        pkey.setRequiredAttachmentId(schema.nextAttachmentIdGen());
        Buff.setRequiredAttachmentId(pkey.getRequiredAttachmentId());

        MSSBamAttachmentByContactIdxKey keyContactIdx = schema.getFactoryAttachment().newContactIdxKey();
        keyContactIdx.setRequiredContactId(Buff.getRequiredContactId());

        MSSBamAttachmentByUDescrIdxKey keyUDescrIdx = schema.getFactoryAttachment().newUDescrIdxKey();
        keyUDescrIdx.setRequiredContactId(Buff.getRequiredContactId());
        keyUDescrIdx.setRequiredDescription(Buff.getRequiredDescription());

        MSSBamAttachmentByMimeTypeIdxKey keyMimeTypeIdx = schema.getFactoryAttachment().newMimeTypeIdxKey();
        keyMimeTypeIdx.setOptionalMimeTypeId(Buff.getOptionalMimeTypeId());

        // Validate unique indexes

        if (dictByPKey.containsKey(pkey)) {
            throw CFLib.getDefaultExceptionFactory().newPrimaryKeyNotNewException(getClass(), "createAttachment",
                    pkey);
        }

        if (dictByUDescrIdx.containsKey(keyUDescrIdx)) {
            throw CFLib.getDefaultExceptionFactory().newUniqueIndexViolationException(getClass(),
                    "createAttachment", "AttachmentUDescrIdx", keyUDescrIdx);
        }

        // Validate foreign keys

        {
            boolean allNull = true;
            allNull = false;
            if (!allNull) {
                if (null == schema.getTableContact().readDerivedByIdIdx(Authorization,
                        Buff.getRequiredContactId())) {
                    throw CFLib.getDefaultExceptionFactory().newUnresolvedRelationException(getClass(),
                            "createAttachment", "Container", "Contact", "Contact", null);
                }
            }
        }

        {
            boolean allNull = true;
            if (Buff.getOptionalMimeTypeId() != null) {
                allNull = false;
            }
            if (!allNull) {
                if (null == schema.getTableMimeType().readDerivedByIdIdx(Authorization,
                        Buff.getOptionalMimeTypeId())) {
                    throw CFLib.getDefaultExceptionFactory().newUnresolvedRelationException(getClass(),
                            "createAttachment", "Lookup", "MimeType", "MimeType", null);
                }
            }
        }

        // Proceed with adding the new record

        dictByPKey.put(pkey, Buff);

        SortedMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff> subdictContactIdx;
        if (dictByContactIdx.containsKey(keyContactIdx)) {
            subdictContactIdx = dictByContactIdx.get(keyContactIdx);
        } else {
            subdictContactIdx = new TreeMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff>();
            dictByContactIdx.put(keyContactIdx, subdictContactIdx);
        }
        subdictContactIdx.put(pkey, Buff);

        dictByUDescrIdx.put(keyUDescrIdx, Buff);

        SortedMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff> subdictMimeTypeIdx;
        if (dictByMimeTypeIdx.containsKey(keyMimeTypeIdx)) {
            subdictMimeTypeIdx = dictByMimeTypeIdx.get(keyMimeTypeIdx);
        } else {
            subdictMimeTypeIdx = new TreeMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff>();
            dictByMimeTypeIdx.put(keyMimeTypeIdx, subdictMimeTypeIdx);
        }
        subdictMimeTypeIdx.put(pkey, Buff);

    }

    public MSSBamAttachmentBuff readDerived(MSSBamAuthorization Authorization, MSSBamAttachmentPKey PKey) {
        final String S_ProcName = "MSSBamRamAttachment.readDerived() ";
        MSSBamAttachmentPKey key = schema.getFactoryAttachment().newPKey();
        key.setRequiredAttachmentId(PKey.getRequiredAttachmentId());
        MSSBamAttachmentBuff buff;
        if (dictByPKey.containsKey(key)) {
            buff = dictByPKey.get(key);
        } else {
            buff = null;
        }
        return (buff);
    }

    public MSSBamAttachmentBuff[] readAllDerived(MSSBamAuthorization Authorization) {
        final String S_ProcName = "MSSBamRamAttachment.readAllDerived() ";
        MSSBamAttachmentBuff[] retList = new MSSBamAttachmentBuff[dictByPKey.values().size()];
        Iterator<MSSBamAttachmentBuff> iter = dictByPKey.values().iterator();
        int idx = 0;
        while (iter.hasNext()) {
            retList[idx++] = iter.next();
        }
        return (retList);
    }

    public MSSBamAttachmentBuff[] readDerivedByContactIdx(MSSBamAuthorization Authorization, long ContactId) {
        final String S_ProcName = "MSSBamRamAttachment.readDerivedByContactIdx() ";
        MSSBamAttachmentByContactIdxKey key = schema.getFactoryAttachment().newContactIdxKey();
        key.setRequiredContactId(ContactId);

        MSSBamAttachmentBuff[] recArray;
        if (dictByContactIdx.containsKey(key)) {
            SortedMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff> subdictContactIdx = dictByContactIdx.get(key);
            recArray = new MSSBamAttachmentBuff[subdictContactIdx.size()];
            Iterator<MSSBamAttachmentBuff> iter = subdictContactIdx.values().iterator();
            int idx = 0;
            while (iter.hasNext()) {
                recArray[idx++] = iter.next();
            }
        } else {
            recArray = new MSSBamAttachmentBuff[0];
        }
        return (recArray);
    }

    public MSSBamAttachmentBuff readDerivedByUDescrIdx(MSSBamAuthorization Authorization, long ContactId,
            String Description) {
        final String S_ProcName = "MSSBamRamAttachment.readDerivedByUDescrIdx() ";
        MSSBamAttachmentByUDescrIdxKey key = schema.getFactoryAttachment().newUDescrIdxKey();
        key.setRequiredContactId(ContactId);
        key.setRequiredDescription(Description);

        MSSBamAttachmentBuff buff;
        if (dictByUDescrIdx.containsKey(key)) {
            buff = dictByUDescrIdx.get(key);
        } else {
            buff = null;
        }
        return (buff);
    }

    public MSSBamAttachmentBuff[] readDerivedByMimeTypeIdx(MSSBamAuthorization Authorization, Short MimeTypeId) {
        final String S_ProcName = "MSSBamRamAttachment.readDerivedByMimeTypeIdx() ";
        MSSBamAttachmentByMimeTypeIdxKey key = schema.getFactoryAttachment().newMimeTypeIdxKey();
        key.setOptionalMimeTypeId(MimeTypeId);

        MSSBamAttachmentBuff[] recArray;
        if (dictByMimeTypeIdx.containsKey(key)) {
            SortedMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff> subdictMimeTypeIdx = dictByMimeTypeIdx.get(key);
            recArray = new MSSBamAttachmentBuff[subdictMimeTypeIdx.size()];
            Iterator<MSSBamAttachmentBuff> iter = subdictMimeTypeIdx.values().iterator();
            int idx = 0;
            while (iter.hasNext()) {
                recArray[idx++] = iter.next();
            }
        } else {
            recArray = new MSSBamAttachmentBuff[0];
        }
        return (recArray);
    }

    public MSSBamAttachmentBuff readDerivedByIdIdx(MSSBamAuthorization Authorization, long AttachmentId) {
        final String S_ProcName = "MSSBamRamAttachment.readDerivedByIdIdx() ";
        MSSBamAttachmentPKey key = schema.getFactoryAttachment().newPKey();
        key.setRequiredAttachmentId(AttachmentId);

        MSSBamAttachmentBuff buff;
        if (dictByPKey.containsKey(key)) {
            buff = dictByPKey.get(key);
        } else {
            buff = null;
        }
        return (buff);
    }

    public MSSBamAttachmentBuff readBuff(MSSBamAuthorization Authorization, MSSBamAttachmentPKey PKey) {
        final String S_ProcName = "MSSBamRamAttachment.readBuff() ";
        MSSBamAttachmentBuff buff = readDerived(Authorization, PKey);
        if ((buff != null) && (!buff.getClassCode().equals("ATTC"))) {
            buff = null;
        }
        return (buff);
    }

    public MSSBamAttachmentBuff[] readAllBuff(MSSBamAuthorization Authorization) {
        final String S_ProcName = "MSSBamRamAttachment.readAllBuff() ";
        MSSBamAttachmentBuff buff;
        ArrayList<MSSBamAttachmentBuff> filteredList = new ArrayList<MSSBamAttachmentBuff>();
        MSSBamAttachmentBuff[] buffList = readAllDerived(Authorization);
        for (int idx = 0; idx < buffList.length; idx++) {
            buff = buffList[idx];
            if ((buff != null) && buff.getClassCode().equals("ATTC")) {
                filteredList.add(buff);
            }
        }
        return (filteredList.toArray(new MSSBamAttachmentBuff[0]));
    }

    public MSSBamAttachmentBuff readBuffByIdIdx(MSSBamAuthorization Authorization, long AttachmentId) {
        final String S_ProcName = "MSSBamRamAttachment.readBuffByIdIdx() ";
        MSSBamAttachmentBuff buff = readDerivedByIdIdx(Authorization, AttachmentId);
        if ((buff != null) && buff.getClassCode().equals("ATTC")) {
            return ((MSSBamAttachmentBuff) buff);
        } else {
            return (null);
        }
    }

    public MSSBamAttachmentBuff[] readBuffByContactIdx(MSSBamAuthorization Authorization, long ContactId) {
        final String S_ProcName = "MSSBamRamAttachment.readBuffByContactIdx() ";
        MSSBamAttachmentBuff buff;
        ArrayList<MSSBamAttachmentBuff> filteredList = new ArrayList<MSSBamAttachmentBuff>();
        MSSBamAttachmentBuff[] buffList = readDerivedByContactIdx(Authorization, ContactId);
        for (int idx = 0; idx < buffList.length; idx++) {
            buff = buffList[idx];
            if ((buff != null) && buff.getClassCode().equals("ATTC")) {
                filteredList.add((MSSBamAttachmentBuff) buff);
            }
        }
        return (filteredList.toArray(new MSSBamAttachmentBuff[0]));
    }

    public MSSBamAttachmentBuff readBuffByUDescrIdx(MSSBamAuthorization Authorization, long ContactId,
            String Description) {
        final String S_ProcName = "MSSBamRamAttachment.readBuffByUDescrIdx() ";
        MSSBamAttachmentBuff buff = readDerivedByUDescrIdx(Authorization, ContactId, Description);
        if ((buff != null) && buff.getClassCode().equals("ATTC")) {
            return ((MSSBamAttachmentBuff) buff);
        } else {
            return (null);
        }
    }

    public MSSBamAttachmentBuff[] readBuffByMimeTypeIdx(MSSBamAuthorization Authorization, Short MimeTypeId) {
        final String S_ProcName = "MSSBamRamAttachment.readBuffByMimeTypeIdx() ";
        MSSBamAttachmentBuff buff;
        ArrayList<MSSBamAttachmentBuff> filteredList = new ArrayList<MSSBamAttachmentBuff>();
        MSSBamAttachmentBuff[] buffList = readDerivedByMimeTypeIdx(Authorization, MimeTypeId);
        for (int idx = 0; idx < buffList.length; idx++) {
            buff = buffList[idx];
            if ((buff != null) && buff.getClassCode().equals("ATTC")) {
                filteredList.add((MSSBamAttachmentBuff) buff);
            }
        }
        return (filteredList.toArray(new MSSBamAttachmentBuff[0]));
    }

    public void updateAttachment(MSSBamAuthorization Authorization, MSSBamAttachmentBuff Buff) {
        MSSBamAttachmentPKey pkey = schema.getFactoryAttachment().newPKey();
        pkey.setRequiredAttachmentId(Buff.getRequiredAttachmentId());
        MSSBamAttachmentBuff existing = dictByPKey.get(pkey);
        if (existing == null) {
            throw CFLib.getDefaultExceptionFactory().newStaleCacheDetectedException(getClass(), "updateAttachment",
                    "Existing record not found", "Attachment", pkey);
        }
        if (existing.getRequiredRevision() != Buff.getRequiredRevision()) {
            throw CFLib.getDefaultExceptionFactory().newCollisionDetectedException(getClass(), "updateAttachment",
                    pkey);
        }
        Buff.setRequiredRevision(Buff.getRequiredRevision() + 1);
        MSSBamAttachmentByContactIdxKey existingKeyContactIdx = schema.getFactoryAttachment().newContactIdxKey();
        existingKeyContactIdx.setRequiredContactId(existing.getRequiredContactId());

        MSSBamAttachmentByContactIdxKey newKeyContactIdx = schema.getFactoryAttachment().newContactIdxKey();
        newKeyContactIdx.setRequiredContactId(Buff.getRequiredContactId());

        MSSBamAttachmentByUDescrIdxKey existingKeyUDescrIdx = schema.getFactoryAttachment().newUDescrIdxKey();
        existingKeyUDescrIdx.setRequiredContactId(existing.getRequiredContactId());
        existingKeyUDescrIdx.setRequiredDescription(existing.getRequiredDescription());

        MSSBamAttachmentByUDescrIdxKey newKeyUDescrIdx = schema.getFactoryAttachment().newUDescrIdxKey();
        newKeyUDescrIdx.setRequiredContactId(Buff.getRequiredContactId());
        newKeyUDescrIdx.setRequiredDescription(Buff.getRequiredDescription());

        MSSBamAttachmentByMimeTypeIdxKey existingKeyMimeTypeIdx = schema.getFactoryAttachment().newMimeTypeIdxKey();
        existingKeyMimeTypeIdx.setOptionalMimeTypeId(existing.getOptionalMimeTypeId());

        MSSBamAttachmentByMimeTypeIdxKey newKeyMimeTypeIdx = schema.getFactoryAttachment().newMimeTypeIdxKey();
        newKeyMimeTypeIdx.setOptionalMimeTypeId(Buff.getOptionalMimeTypeId());

        // Check unique indexes

        if (!existingKeyUDescrIdx.equals(newKeyUDescrIdx)) {
            if (dictByUDescrIdx.containsKey(newKeyUDescrIdx)) {
                throw CFLib.getDefaultExceptionFactory().newUniqueIndexViolationException(getClass(),
                        "updateAttachment", "AttachmentUDescrIdx", newKeyUDescrIdx);
            }
        }

        // Validate foreign keys

        {
            boolean allNull = true;

            if (allNull) {
                if (null == schema.getTableContact().readDerivedByIdIdx(Authorization,
                        Buff.getRequiredContactId())) {
                    throw CFLib.getDefaultExceptionFactory().newUnresolvedRelationException(getClass(),
                            "updateAttachment", "Container", "Contact", "Contact", null);
                }
            }
        }

        {
            boolean allNull = true;
            if (Buff.getOptionalMimeTypeId() != null) {
                allNull = false;
            }
            if (allNull) {
                if (null == schema.getTableMimeType().readDerivedByIdIdx(Authorization,
                        Buff.getOptionalMimeTypeId())) {
                    throw CFLib.getDefaultExceptionFactory().newUnresolvedRelationException(getClass(),
                            "updateAttachment", "Lookup", "MimeType", "MimeType", null);
                }
            }
        }

        // Update is valid

        SortedMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff> subdict;

        dictByPKey.remove(pkey);
        dictByPKey.put(pkey, Buff);

        subdict = dictByContactIdx.get(existingKeyContactIdx);
        if (subdict != null) {
            subdict.remove(pkey);
        }
        if (dictByContactIdx.containsKey(newKeyContactIdx)) {
            subdict = dictByContactIdx.get(newKeyContactIdx);
        } else {
            subdict = new TreeMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff>();
            dictByContactIdx.put(newKeyContactIdx, subdict);
        }
        subdict.put(pkey, Buff);

        dictByUDescrIdx.remove(existingKeyUDescrIdx);
        dictByUDescrIdx.put(newKeyUDescrIdx, Buff);

        subdict = dictByMimeTypeIdx.get(existingKeyMimeTypeIdx);
        if (subdict != null) {
            subdict.remove(pkey);
        }
        if (dictByMimeTypeIdx.containsKey(newKeyMimeTypeIdx)) {
            subdict = dictByMimeTypeIdx.get(newKeyMimeTypeIdx);
        } else {
            subdict = new TreeMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff>();
            dictByMimeTypeIdx.put(newKeyMimeTypeIdx, subdict);
        }
        subdict.put(pkey, Buff);

    }

    public void deleteAttachment(MSSBamAuthorization Authorization, MSSBamAttachmentBuff Buff) {
        final String S_ProcName = "MSSBamRamAttachmentTable.deleteAttachment() ";
        MSSBamAttachmentPKey pkey = schema.getFactoryAttachment().newPKey();

        pkey.setRequiredAttachmentId(schema.nextAttachmentIdGen());
        MSSBamAttachmentBuff existing = dictByPKey.get(pkey);
        if (existing == null) {
            throw CFLib.getDefaultExceptionFactory().newStaleCacheDetectedException(getClass(), "deleteAttachment",
                    "Existing record not found", "Attachment", pkey);
        }
        if (existing.getRequiredRevision() != Buff.getRequiredRevision()) {
            throw CFLib.getDefaultExceptionFactory().newCollisionDetectedException(getClass(), "deleteAttachment",
                    pkey);
        }
        MSSBamAttachmentByContactIdxKey keyContactIdx = schema.getFactoryAttachment().newContactIdxKey();
        keyContactIdx.setRequiredContactId(existing.getRequiredContactId());

        MSSBamAttachmentByUDescrIdxKey keyUDescrIdx = schema.getFactoryAttachment().newUDescrIdxKey();
        keyUDescrIdx.setRequiredContactId(existing.getRequiredContactId());
        keyUDescrIdx.setRequiredDescription(existing.getRequiredDescription());

        MSSBamAttachmentByMimeTypeIdxKey keyMimeTypeIdx = schema.getFactoryAttachment().newMimeTypeIdxKey();
        keyMimeTypeIdx.setOptionalMimeTypeId(existing.getOptionalMimeTypeId());

        // Validate reverse foreign keys

        if (schema.getTableAttachmentTag().readDerivedByAttachmentIdx(Authorization,
                existing.getRequiredAttachmentId()).length > 0) {
            throw CFLib.getDefaultExceptionFactory().newDependentsDetectedException(getClass(), "deleteAttachment",
                    "Container", "AttachmentTagAttachment", "AttachmentTag", pkey);
        }

        // Delete is valid

        SortedMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff> subdict;

        dictByPKey.remove(pkey);

        subdict = dictByContactIdx.get(keyContactIdx);
        subdict.remove(pkey);

        dictByUDescrIdx.remove(keyUDescrIdx);

        subdict = dictByMimeTypeIdx.get(keyMimeTypeIdx);
        subdict.remove(pkey);

    }

    public MSSBamCursor openAttachmentCursorAll(MSSBamAuthorization Authorization) {
        MSSBamCursor cursor = new MSSBamRamAttachmentCursor(Authorization, schema, dictByPKey.values());
        return (cursor);
    }

    public MSSBamCursor openAttachmentCursorByContactIdx(MSSBamAuthorization Authorization, long ContactId) {
        MSSBamCursor cursor;
        MSSBamAttachmentByContactIdxKey key = schema.getFactoryAttachment().newContactIdxKey();
        key.setRequiredContactId(ContactId);

        if (dictByContactIdx.containsKey(key)) {
            SortedMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff> subdictContactIdx = dictByContactIdx.get(key);
            cursor = new MSSBamRamAttachmentCursor(Authorization, schema, subdictContactIdx.values());
        } else {
            cursor = new MSSBamRamAttachmentCursor(Authorization, schema, new ArrayList<MSSBamAttachmentBuff>());
        }
        return (cursor);
    }

    public MSSBamCursor openAttachmentCursorByMimeTypeIdx(MSSBamAuthorization Authorization, Short MimeTypeId) {
        MSSBamCursor cursor;
        MSSBamAttachmentByMimeTypeIdxKey key = schema.getFactoryAttachment().newMimeTypeIdxKey();
        key.setOptionalMimeTypeId(MimeTypeId);

        if (dictByMimeTypeIdx.containsKey(key)) {
            SortedMap<MSSBamAttachmentPKey, MSSBamAttachmentBuff> subdictMimeTypeIdx = dictByMimeTypeIdx.get(key);
            cursor = new MSSBamRamAttachmentCursor(Authorization, schema, subdictMimeTypeIdx.values());
        } else {
            cursor = new MSSBamRamAttachmentCursor(Authorization, schema, new ArrayList<MSSBamAttachmentBuff>());
        }
        return (cursor);
    }

    public void closeAttachmentCursor(MSSBamCursor Cursor) {
        // Cursor.DataReader.Close();
    }

    public MSSBamAttachmentBuff nextAttachmentCursor(MSSBamCursor Cursor) {
        MSSBamRamAttachmentCursor cursor = (MSSBamRamAttachmentCursor) Cursor;
        MSSBamAttachmentBuff rec = cursor.getCursor().next();
        cursor.setRowIdx(cursor.getRowIdx() + 1);
        return (rec);
    }

    public MSSBamAttachmentBuff prevAttachmentCursor(MSSBamCursor Cursor) {
        int targetRowIdx = (Cursor.getRowIdx() > 1) ? Cursor.getRowIdx() - 1 : 1;
        MSSBamAttachmentBuff rec = null;
        if (Cursor.getRowIdx() >= targetRowIdx) {
            Cursor.reset();
        }
        while (Cursor.getRowIdx() < targetRowIdx) {
            rec = nextAttachmentCursor(Cursor);
        }
        return (rec);
    }

    public MSSBamAttachmentBuff firstAttachmentCursor(MSSBamCursor Cursor) {
        int targetRowIdx = 1;
        MSSBamAttachmentBuff rec = null;
        Cursor.reset();
        while (Cursor.getRowIdx() < targetRowIdx) {
            rec = nextAttachmentCursor(Cursor);
        }
        return (rec);
    }

    public MSSBamAttachmentBuff lastAttachmentCursor(MSSBamCursor Cursor) {
        throw CFLib.getDefaultExceptionFactory().newNotImplementedYetException(getClass(), "lastAttachmentCursor");
    }

    public MSSBamAttachmentBuff nthAttachmentCursor(MSSBamCursor Cursor, int Idx) {
        int targetRowIdx = Idx;
        MSSBamAttachmentBuff rec = null;
        if (Cursor.getRowIdx() >= targetRowIdx) {
            Cursor.reset();
        }
        while (Cursor.getRowIdx() < targetRowIdx) {
            rec = nextAttachmentCursor(Cursor);
        }
        return (rec);
    }
}