[Mc4j-cvs] mc4j/modules/ems/src/ems/org/mc4j/ems/store CompleteValueHistory.java,NONE,1.1.2.1 Value.java,NONE,1.1.2.1 ValueHistory.java,NONE,1.1.2.1

[Greg H. <gh...@us...>]

Update of /cvsroot/mc4j/mc4j/modules/ems/src/ems/org/mc4j/ems/store
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv7113/modules/ems/src/ems/org/mc4j/ems/store

Added Files:
      Tag: ems_module_separation
	CompleteValueHistory.java Value.java ValueHistory.java 
Log Message:
EMS is an externalization of the core JMX handling functionality in MC4J. This will provide a safe interface based access to jmx info that hides the necessary complexity of special classloaders per connection. The implementation is simple and the error handling has not been added yet.

--- NEW FILE: CompleteValueHistory.java ---
/*
 * Copyright 2002-2004 Greg Hinkle
 *
 * 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.mc4j.ems.store;

import java.util.List;
import java.util.LinkedList;
import java.util.Collections;

/**
 * @author Greg Hinkle (gh...@us...), Apr 6, 2005
 * @version $Revision: 1.1.2.1 $($Author: ghinkl $ / $Date: 2005/05/26 17:27:24 $)
 */
public class CompleteValueHistory implements ValueHistory {

    /**
     * Newer values are added at the end of the list. Oldest values first.
     */
    protected List<Value> values = new LinkedList<Value>();

    protected long historySize;

    public CompleteValueHistory() {
        this(-1);
    }

    public CompleteValueHistory(long historySize) {
        this.historySize = historySize;
    }

    public long getHistorySize() {
        return values.size();
    }

    public void setMaximumHistorySize(long historySize) {
        this.historySize = historySize;
    }

    public List<Value> getValues() {
        return Collections.unmodifiableList(values);
    }

    public void addValue(Value value) {
        values.add(value);
        if (historySize > 0 && historySize < values.size()) {
            values.remove(0);
        }
    }


}

--- NEW FILE: ValueHistory.java ---
package org.mc4j.ems.store;

import java.util.List;

/**
 * @author Greg Hinkle (gh...@us...), Apr 12, 2005
 * @version $Revision: 1.1.2.1 $($Author: ghinkl $ / $Date: 2005/05/26 17:27:24 $)
 */
public interface ValueHistory {
    long getHistorySize();

    List<Value> getValues();

    void addValue(Value value);
}

--- NEW FILE: Value.java ---
/*
 * Copyright 2002-2004 Greg Hinkle
 *
 * 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.mc4j.ems.store;

/**
 * @author Greg Hinkle (gh...@us...), Apr 12, 2005
 * @version $Revision: 1.1.2.1 $($Author: ghinkl $ / $Date: 2005/05/26 17:27:24 $)
 */
public class Value {

    private Object value;
    private long recorded;

    public Value(Object value, long recorded) {
        this.value = value;
        this.recorded = recorded;
    }

    public Object getValue() {
        return value;
    }

    public void setValue(Object value) {
        this.value = value;
    }

    public long getRecorded() {
        return recorded;
    }

    public void setRecorded(long recorded) {
        this.recorded = recorded;
    }

}