Android Open Source - br.com.mirabilis.sqlite S Q Lite Parse Annotation

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License

The source code is released under:

Apache License

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Java Source Code

package br.com.mirabilis.sqlite.annotation;
/* ww  w .  j  a v a2 s . c  om*/
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;

import br.com.mirabilis.sqlite.annotation.model.SQLiteAnnotationEntity;
import br.com.mirabilis.sqlite.annotation.model.SQLiteAnnotationField;
import br.com.mirabilis.sqlite.manager.exception.SQLiteException;
import br.com.mirabilis.sqlite.manager.model.SQLiteEntity;
import br.com.mirabilis.sqlite.manager.model.SQLiteField;

/**
 * Recovery values of {@link SQLiteAnnotationEntity} and
 * {@link SQLiteAnnotationField}
 * 
 * @author Rodrigo Sim?es Rosa
 */
public final class SQLiteParseAnnotation {

  public final static SQLiteEntity getValuesFromAnnotation(
      Class<?> classHasAnnotation) throws SQLiteException {
    SQLiteAnnotationEntity entityAnnotation = null;
    List<SQLiteField> fields = null;
    if (classHasAnnotation
        .isAnnotationPresent(SQLiteAnnotationEntity.class)) {
      entityAnnotation = classHasAnnotation
          .getAnnotation(SQLiteAnnotationEntity.class);

      /**
       * Get fields of superclass SQLiteTable
       */
      for (Field field : classHasAnnotation.getSuperclass()
          .getDeclaredFields()) {
        if (field.isAnnotationPresent(SQLiteAnnotationField.class)) {

          /**
           * Initialize variable
           */
          if (fields == null) {
            fields = new ArrayList<SQLiteField>();
          }

          fields.add(getSQLiteField(field
              .getAnnotation(SQLiteAnnotationField.class)));
        }
      }

      for (Field field : classHasAnnotation.getDeclaredFields()) {
        if (field.isAnnotationPresent(SQLiteAnnotationField.class)) {

          /**
           * Initialize variable
           */
          if (fields == null) {
            fields = new ArrayList<SQLiteField>();
          }

          fields.add(getSQLiteField(field
              .getAnnotation(SQLiteAnnotationField.class)));
        }
      }
    } else {
      throw new SQLiteException("The class : ".concat(
          classHasAnnotation.getName())
          .concat(" has not annotation!"));
    }

    SQLiteEntity entity = new SQLiteEntity(entityAnnotation.name(), fields);

    return entity;
  }

  /**
   * Return {@link SQLiteField} by {@link SQLiteParseAnnotation}
   * 
   * @param annotation
   * @return
   * @throws SQLiteException
   */
  public final static SQLiteField getSQLiteField(
      SQLiteAnnotationField annotation) throws SQLiteException {
    return new SQLiteField.Builder(annotation.name(), annotation.type())
        .autoIncrement(annotation.autoIncrement())
        .notNull(annotation.notNull())
        .primaryKey(annotation.primaryKey())
        .reference(annotation.reference())
        .foreignKey(annotation.foreignKey())
        .foreignKeyModifier(annotation.foreignKeyModifier())
        .action(annotation.action()).build();
  }
}

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