DecimalAttribute.java

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/*
 * Project: Server for annotations sharing
 * Author: Ing. Jaroslav Dytrych idytrych@fit.vutbr.cz, Jan Planer xplane01@stud.fit.vutbr.cz
 * File: DecimalAttribute.java
 * Description: Class representing attribute of type Decimal
 */

package cz.vutbr.fit.knot.annotations.entity.attribute;

import cz.vutbr.fit.knot.annotations.app.Constants;
import java.math.BigDecimal;
import javax.persistence.DiscriminatorValue;
import javax.persistence.Entity;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;

/**
 * @file DecimalAttribute.java
 *
 * @brief Class representing attribute of type Decimal
 */

/**
 * Class representing attribute of type Decimal
 * 
 * @brief Class representing attribute of type Decimal
 */
@Entity
@DiscriminatorValue("Decimal")
@NamedQueries({
    @NamedQuery(name = "Attribute.findByDecValue", query = "SELECT a FROM Attribute a WHERE a.decValue = :decValue"),
})
public class DecimalAttribute extends BaseAttribute {
    
  /**
   * Gets value of the attribute
   * 
   * @return value of the attribute
   */
  @Override
  public Object getValue() {
    return this.decValue;
  }

  /**
   * Sets value of the attribute. Value should already be a native java BigDecimal value. 
   * 
   * @param value new value of the attribute
   */
  @Override
  public void setValue(Object value) {
    this.decValue = (BigDecimal) value;
  }

  /**
   * Parses BigDecimal value represented by string value and sets it as 
   * attribute value
   * 
   * @param value String representing BigDecimal value
   */
  @Override
  public void setRawValue(String value) throws IllegalArgumentException {
    if(value == null){
        return;
    }
      
    try {
      this.decValue = new BigDecimal(value);
    } catch (NumberFormatException e) {
      throw new IllegalArgumentException("Value " + value + " is not a valid Decimal value");
    }
  }
  
  /**
   * Gets URI addres in ontology for this type of attribute
   * 
   * @return Return URI addres in ontology for this type of attribute.
   */
  @Override
  public String getTypeOntologyUri(){
      return Constants.DECIMAL_URI;
  }
    
}  // class DecimalAttribute