datainteger.java

一个用java写的地震分析软件(无源码)-used to write a seismic analysis software (without source)

package org.trinet.jdbc.datatypes;
import java.util.*;
import org.trinet.jdbc.*;

/** Extends the base abstract DataObject class to implements a stateful int value.
* @see DataLong
*/
public class DataInteger extends DataObject implements DataNumeric, Comparable {
    int value;

    public DataInteger () {
	this.value = NullValueDb.NULL_INT;
    }
 
    public DataInteger (int value) {
	setValue(value);
    }
    public DataInteger (long value) {
	setValue(value);
    }
    public DataInteger (float value) {
	setValue(value);
    }
    public DataInteger (double value) {
	setValue(value);
    }
    public DataInteger (String value) throws NumberFormatException {
	setValue(value);
    }

    public DataInteger (DataInteger object) {
	if (object == null) setNull(true);
	else {
	    this.value = object.value;
	    this.valueUpdate = object.valueUpdate;
	    this.valueNull = object.valueNull;
	    this.valueMutable = object.valueMutable;
	}
    }

    public String toString() {
	return String.valueOf(value); 
    }
    public String toStringSQL() {
	if (valueNull) return "NULL";
	return StringSQL.valueOf(value);
    }

/** Returns a String of "label: value" pairs for the object value and its state flags. 
* If isNull() == true the string "NULL" is printed for the value.
* "Value: " + value.toString() + " Null: " + isNull() + " Update: " + isUpdate() + " Mutable: " + isMutable()
*/
    public String classToString() {
	StringBuffer sb = new StringBuffer(128);
	sb.append("                                           ");
	sb.insert(0, "Value:");
	if (isNull()) sb.insert(7,"NULL");
	else sb.insert(7, value);
	sb.insert(32, "Null:");
	sb.insert(37, valueNull);
	sb.insert(43, "Update:");
	sb.insert(50, valueUpdate);
	sb.insert(56, "Mutable:");
	sb.insert(64, valueMutable);
	return sb.toString().trim();
//	return  "Value: " + value + " Null: " + valueNull + " Update: " + valueUpdate + " Mutable: " + valueMutable;
    }

    public int hashCode() {
	return value; 
    }


    public boolean equalsValue(Object object) {
	if (object == null ) return false;
	if (object instanceof DataObject) {
	    if ( value == ((DataObject) object).intValue() ) return true;
	    else return false; 
	}
	else if (object instanceof Number) {
	    if ( value == ((Number) object).intValue() ) return true;
	    else return false; 
	}
	else return false; 
    }

    public boolean equals(Object object) {
	if (object == null || ! (object instanceof DataInteger)) return false;
	if (value == ((DataInteger) object).value && 
	   valueUpdate == ((DataInteger) object).valueUpdate && 
	   valueMutable == ((DataInteger) object).valueMutable && 
	   valueNull == ((DataInteger) object).valueNull) return true;
	else return false;
    }

    public int compareTo(Object object) throws ClassCastException {
	if (object instanceof Integer) { 
	    if (this.value == ((Integer) object).intValue()) return 0;
	    else if (this.value > ((Integer) object).intValue()) return 1;
	    else return -1;
	}
	else if (object instanceof DataInteger) { 
	    return compareTo((DataInteger) object);
	}
	else throw new ClassCastException("compareTo(object) argument must be a Integer or DataInteger class type: "
			+ object.getClass().getName());
    }

    public int compareTo(DataInteger object) {
	if (this.value == object.value) return 0;
	else if (this.value > object.value) return 1;
	else return -1;
    }

    public int intValue() {
	return (int) value;
    }

    public long longValue() {
	return (long) value;
    }

    public float floatValue() {
	return (float) value;
    }

    public double doubleValue() {
	return (double) value;
    }

    public void setValue(int value) {
	if(! isMutable()) return;
	this.value = value;
	this.valueNull = false;
	this.valueUpdate = true;
	return;
    }

    public void setValue(long value) {
	if(! isMutable()) return;
	this.value = (int) value;
	this.valueNull = false;
	this.valueUpdate = true;
	return;
    }

    public void setValue(float value) {
	if(! isMutable()) return;
	this.value = (int) value;
	this.valueNull = false;
	this.valueUpdate = true;
	return;
    }

    public void setValue(double value) {
	if(! isMutable()) return;
	this.value = (int) value;
	this.valueNull = false;
	this.valueUpdate = true;
	return;
    }

    public void setValue(Object object) throws ClassCastException, NumberFormatException  {
	if(! isMutable()) return;
//	if (object == null) throw new NullPointerException("setValue(Object) argument null");
	if (object == null) {
	    setNull(true);
	}
	else if (Number.class.isInstance(object)) {
	    setValue(((Number) object).intValue());
	}
	else if (DataObject.class.isInstance(object)) {
	    setValue(((DataObject) object).intValue());
	}
	else if (String.class.isInstance(object)) {
	    setValue(Integer.parseInt((String) object));
	}
	else throw new ClassCastException("setValue(Object) invalid object argument class type: " + object.getClass().getName());
	return;
    }

    public DataObject setNull(boolean value) {
	setValue(NullValueDb.NULL_INT);
	this.valueNull = true;
	return this;
    }

/**
* Returns true if a value can be parsed from input StringTokenizer.
* Does not set value and returns false if tokenizer.hasMoreTokens() == false
* or a float cannot be parsed from token.
*/
    public boolean parseValue(StringTokenizer tokenizer) {
        if (! tokenizer.hasMoreTokens()) return false;
        boolean retVal = false;
        try {
            setValue( Integer.parseInt(tokenizer.nextToken()) );
            retVal = true;
        }
        catch (NumberFormatException ex) {
            System.err.println("DataInteger parseValue()" + ex.getMessage());
        }
        return retVal;
    }

}