Druid/src/main/java/com/alibaba/druid/pool/PreparedStatementHolder.java

/*
 * Copyright 1999-2011 Alibaba Group Holding Ltd.
 *
 * 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 com.alibaba.druid.pool;

import java.sql.PreparedStatement;

import com.alibaba.druid.pool.DruidPooledPreparedStatement.PreparedStatementKey;

/**
 * @author wenshao<szujobs@hotmail.com>
 */
public final class PreparedStatementHolder {

    private final PreparedStatementKey key;
    private final PreparedStatement    statement;
    private int                        hitCount                 = 0;

    private int                        fetchRowPeak             = -1;

    private int                        defaultRowPretch         = -1;
    private int                        rowPrefetch              = -1;

    private boolean                    enterOracleImplicitCache = false;

    private int                        inUseCount               = 0;

    public PreparedStatementHolder(PreparedStatementKey key, PreparedStatement stmt){
        this.key = key;
        this.statement = stmt;
    }

    public boolean isEnterOracleImplicitCache() {
        return enterOracleImplicitCache;
    }

    public void setEnterOracleImplicitCache(boolean enterOracleImplicitCache) {
        this.enterOracleImplicitCache = enterOracleImplicitCache;
    }

    public int getDefaultRowPretch() {
        return defaultRowPretch;
    }

    public void setDefaultRowPretch(int defaultRowPretch) {
        this.defaultRowPretch = defaultRowPretch;
    }

    public int getRowPrefetch() {
        return rowPrefetch;
    }

    public void setRowPrefetch(int rowPrefetch) {
        this.rowPrefetch = rowPrefetch;
    }

    public int getFetchRowPeak() {
        return fetchRowPeak;
    }

    public void setFetchRowPeak(int fetchRowPeak) {
        if (fetchRowPeak > this.fetchRowPeak) {
            this.fetchRowPeak = fetchRowPeak;
        }
    }

    public PreparedStatement getStatement() {
        return statement;
    }

    public PreparedStatementKey getKey() {
        return key;
    }

    public void incrementHitCount() {
        hitCount++;
    }

    public int getHitCount() {
        return hitCount;
    }

    public boolean isInUse() {
        return inUseCount <= 0;
    }

    public void incrementInUseCount() {
        inUseCount++;
    }
    
    public void decrementInUseCount() {
        inUseCount--;
    }
    
    public int getInUseCount() {
        return inUseCount;
    }
}