/**
* Global Sensor Networks (GSN) Source Code
* Copyright (c) 2006-2016, Ecole Polytechnique Federale de Lausanne (EPFL)
*
* This file is part of GSN.
*
* GSN 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.
*
* GSN 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 GSN. If not, see <http://www.gnu.org/licenses/>.
*
* File: src/ch/epfl/gsn/beans/DataField.java
*
* @author Timotee Maret
* @author Ali Salehi
* @author Sofiane Sarni
* @author Milos Stojanovic
*
*/
package ch.epfl.gsn.beans;
import java.io.Serializable;
import ch.epfl.gsn.beans.DataField;
import ch.epfl.gsn.beans.DataTypes;
import ch.epfl.gsn.utils.GSNRuntimeException;
public final class DataField implements Serializable {
private static final long serialVersionUID = -8841539191525018987L;
private String description = "Not Provided";
private String name;
private byte dataTypeID = -1;
private String type;
private String unit = "";
private boolean index = false;
public DataField() {}
public DataField ( final String fieldName , final String type , final String description) throws GSNRuntimeException {
this.name = fieldName;
this.type = type;
this.dataTypeID = DataTypes.convertTypeNameToGSNTypeID( type );
this.description = description;
}
/*
* Use this constructor only with types which require precision parameter (char, varchar, blob, binary)
* */
public DataField ( final String fieldName , final String type, final int precision , final String description) throws GSNRuntimeException {
this.name = fieldName;
this.type = type +"("+precision+")";
this.dataTypeID = DataTypes.convertTypeNameToGSNTypeID( this.type );
this.description = description;
}
public DataField ( final String name , final String type ) {
this.name = name;
this.type = type;
this.dataTypeID = DataTypes.convertTypeNameToGSNTypeID( type );
}
public DataField(String colName,byte dataTypeID) {
this.name=colName;
this.dataTypeID = dataTypeID;
this.type = DataTypes.TYPE_NAMES[this.dataTypeID];
}
public String getDescription ( ) {
return this.description;
}
transient boolean fieldNameConvertedToLowerCase = false;
public String getName ( ) {
if (fieldNameConvertedToLowerCase==false) {
fieldNameConvertedToLowerCase=true;
this.name=name.toLowerCase( );
}
return this.name;
}
public boolean equals ( final Object o ) {
if ( this == o ) return true;
if ( !( o instanceof DataField ) ) return false;
final DataField dataField = ( DataField ) o;
if ( this.name != null ? !this.name.equals( dataField.name ) : dataField.name != null ) return false;
return true;
}
/**
* @return Returns the dataTypeID.
*/
public byte getDataTypeID ( ) {
if ( this.dataTypeID == -1 ) this.dataTypeID = DataTypes.convertTypeNameToGSNTypeID( this.type );
return this.dataTypeID;
}
public int hashCode ( ) {
return ( this.name != null ? this.name.hashCode( ) : 0 );
}
public String toString ( ) {
final StringBuilder result = new StringBuilder( );
result.append( "[Field-Name:" ).append( this.name ).append( ", Type:" ).append( DataTypes.TYPE_NAMES[ this.getDataTypeID( ) ] ).append( "[" + this.type + "]" )
.append( ", Decription:" ).append( this.description )
.append( ", Unit:" ).append( this.unit )
.append( "]" );
return result.toString( );
}
/**
* @return Returns the type. This method is just used in the web interface
* for detection the output of binary fields.
*/
public String getType ( ) {
return this.type;
}
public String getUnit() {
return unit;
}
public void setName(String name) {
this.name=name;
}
public void setDescription(String desc) {
this.description=desc;
}
public void setType(String dtype) {
this.type = dtype;
}
public void setUnit(String unit) {
this.unit = unit;
}
}