databaseconfig.java

关于Berkelay数据库的共享源码

/*-
 * See the file LICENSE for redistribution information.
 *
 * Copyright (c) 2002-2006
 *	Oracle Corporation.  All rights reserved.
 *
 * $Id: DatabaseConfig.java,v 12.6 2006/08/24 14:46:07 bostic Exp $
 */

package com.sleepycat.db;

import com.sleepycat.db.internal.Db;
import com.sleepycat.db.internal.DbConstants;
import com.sleepycat.db.internal.DbEnv;
import com.sleepycat.db.internal.DbTxn;
import com.sleepycat.db.internal.DbUtil;

public class DatabaseConfig implements Cloneable {
    /*
     * For internal use, final to allow null as a valid value for
     * the config parameter.
     */
    public static final DatabaseConfig DEFAULT = new DatabaseConfig();

    /* package */
    static DatabaseConfig checkNull(DatabaseConfig config) {
        return (config == null) ? DEFAULT : config;
    }

    /* Parameters */
    private DatabaseType type = DatabaseType.UNKNOWN;
    private int mode = 0644;
    private int btMinKey = 0;
    private int byteOrder = 0;
    private long cacheSize = 0L;
    private int cacheCount = 0;
    private java.io.OutputStream errorStream = null;
    private String errorPrefix = null;
    private int hashFillFactor = 0;
    private int hashNumElements = 0;
    private java.io.OutputStream messageStream = null;
    private int pageSize = 0;
    private String password = null;
    private int queueExtentSize = 0;
    private int recordDelimiter = 0;
    private int recordLength = 0;
    private int recordPad = -1;       // Zero is a valid, non-default value.
    private java.io.File recordSource = null;

    /* Flags */
    private boolean allowCreate = false;
    private boolean btreeRecordNumbers = false;
    private boolean checksum = false;
    private boolean readUncommitted = false;
    private boolean encrypted = false;
    private boolean exclusiveCreate = false;
    private boolean multiversion = false;
    private boolean noMMap = false;
    private boolean queueInOrder = false;
    private boolean readOnly = false;
    private boolean renumbering = false;
    private boolean reverseSplitOff = false;
    private boolean sortedDuplicates = false;
    private boolean snapshot = false;
    private boolean unsortedDuplicates = false;
    private boolean transactional = false;
    private boolean transactionNotDurable = false;
    private boolean truncate = false;
    private boolean xaCreate = false;

    private java.util.Comparator btreeComparator = null;
    private BtreePrefixCalculator btreePrefixCalculator = null;
    private java.util.Comparator duplicateComparator = null;
    private FeedbackHandler feedbackHandler = null;
    private ErrorHandler errorHandler = null;
    private MessageHandler messageHandler = null;
    private Hasher hasher = null;
    private RecordNumberAppender recnoAppender = null;
    private PanicHandler panicHandler = null;

    public DatabaseConfig() {
    }

    public void setAllowCreate(final boolean allowCreate) {
        this.allowCreate = allowCreate;
    }

    public boolean getAllowCreate() {
        return allowCreate;
    }

    public void setBtreeComparator(final java.util.Comparator btreeComparator) {
        this.btreeComparator = btreeComparator;
    }

    public java.util.Comparator getBtreeComparator() {
        return btreeComparator;
    }

    public void setBtreeMinKey(final int btMinKey) {
        this.btMinKey = btMinKey;
    }

    public int getBtreeMinKey() {
        return btMinKey;
    }

    public void setByteOrder(final int byteOrder) {
        this.byteOrder = byteOrder;
    }

    public int getByteOrder() {
        return byteOrder;
    }

    public boolean getByteSwapped() {
        return byteOrder != 0 && byteOrder != DbUtil.default_lorder();
    }

    public void setBtreePrefixCalculator(
            final BtreePrefixCalculator btreePrefixCalculator) {
        this.btreePrefixCalculator = btreePrefixCalculator;
    }

    public BtreePrefixCalculator getBtreePrefixCalculator() {
        return btreePrefixCalculator;
    }

    public void setCacheSize(final long cacheSize) {
        this.cacheSize = cacheSize;
    }

    public long getCacheSize() {
        return cacheSize;
    }

    public void setCacheCount(final int cacheCount) {
        this.cacheCount = cacheCount;
    }

    public int getCacheCount() {
        return cacheCount;
    }

    public void setChecksum(final boolean checksum) {
        this.checksum = checksum;
    }

    public boolean getChecksum() {
        return checksum;
    }

    public void setReadUncommitted(final boolean readUncommitted) {
        this.readUncommitted = readUncommitted;
    }

    public boolean getReadUncommitted() {
        return readUncommitted;
    }

    /** @deprecated */
    public void setDirtyRead(final boolean dirtyRead) {
        setReadUncommitted(dirtyRead);
    }

    /** @deprecated */
    public boolean getDirtyRead() {
        return getReadUncommitted();
    }

    public void setDuplicateComparator(
            final java.util.Comparator duplicateComparator) {
        this.duplicateComparator = duplicateComparator;
    }

    public java.util.Comparator getDuplicateComparator() {
        return duplicateComparator;
    }

    public void setEncrypted(final String password) {
        this.password = password;
    }

    public boolean getEncrypted() {
        return (password != null);
    }

    public void setErrorHandler(final ErrorHandler errorHandler) {
        this.errorHandler = errorHandler;
    }

    public ErrorHandler getErrorHandler() {
        return errorHandler;
    }

    public void setErrorPrefix(final String errorPrefix) {
        this.errorPrefix = errorPrefix;
    }

    public String getErrorPrefix() {
        return errorPrefix;
    }

    public void setErrorStream(final java.io.OutputStream errorStream) {
        this.errorStream = errorStream;
    }

    public java.io.OutputStream getErrorStream() {
        return errorStream;
    }

    public void setExclusiveCreate(final boolean exclusiveCreate) {
        this.exclusiveCreate = exclusiveCreate;
    }

    public boolean getExclusiveCreate() {
        return exclusiveCreate;
    }

    public void setFeedbackHandler(final FeedbackHandler feedbackHandler) {
        this.feedbackHandler = feedbackHandler;
    }

    public FeedbackHandler getFeedbackHandler() {
        return feedbackHandler;
    }

    public void setHashFillFactor(final int hashFillFactor) {
        this.hashFillFactor = hashFillFactor;
    }

    public int getHashFillFactor() {
        return hashFillFactor;
    }

    public void setHasher(final Hasher hasher) {
        this.hasher = hasher;
    }

    public Hasher getHasher() {
        return hasher;
    }

    public void setHashNumElements(final int hashNumElements) {
        this.hashNumElements = hashNumElements;
    }

    public int getHashNumElements() {
        return hashNumElements;
    }

    public void setMessageHandler(final MessageHandler messageHandler) {
        this.messageHandler = messageHandler;
    }

    public MessageHandler getMessageHandler() {
        return messageHandler;
    }

    public void setMessageStream(final java.io.OutputStream messageStream) {
        this.messageStream = messageStream;
    }

    public java.io.OutputStream getMessageStream() {
        return messageStream;
    }

    public void setMode(final int mode) {
        this.mode = mode;
    }

    public long getMode() {
        return mode;
    }

    public void setMultiversion(final boolean Multiversion) {
        this.multiversion = multiversion;
    }

    public boolean getMultiversion() {
        return multiversion;
    }

    public void setNoMMap(final boolean noMMap) {
        this.noMMap = noMMap;
    }

    public boolean getNoMMap() {
        return noMMap;
    }

    public void setPageSize(final int pageSize) {
        this.pageSize = pageSize;
    }

    public int getPageSize() {
        return pageSize;
    }

    public void setPanicHandler(final PanicHandler panicHandler) {
        this.panicHandler = panicHandler;
    }

    public PanicHandler getPanicHandler() {
        return panicHandler;
    }

    public void setQueueExtentSize(final int queueExtentSize) {
        this.queueExtentSize = queueExtentSize;
    }

    public int getQueueExtentSize() {
        return queueExtentSize;
    }

    public void setQueueInOrder(final boolean queueInOrder) {
        this.queueInOrder = queueInOrder;
    }

    public boolean getQueueInOrder() {
        return queueInOrder;
    }

    public void setReadOnly(final boolean readOnly) {
        this.readOnly = readOnly;
    }