Java Column类代码示例

本文整理汇总了Java中com.datastax.driver.mapping.annotations.Column类的典型用法代码示例。如果您正苦于以下问题：Java Column类的具体用法？Java Column怎么用？Java Column使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。

Column类属于com.datastax.driver.mapping.annotations包，在下文中一共展示了Column类的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: getColumnName

import com.datastax.driver.mapping.annotations.Column; //导入依赖的package包/类
private static <F extends AnnotatedElement & Member> String getColumnName(F element) {
    if (element.isAnnotationPresent(Column.class)) {
        String name = element.getAnnotation(Column.class).name();
        if (!name.isEmpty()) return name;
    }
    if (element instanceof Method) {
        if (element.getName().startsWith("get")) {
            return element.getName().substring(3);
        }
        if (element.getName().startsWith("is")) {
            return element.getName().substring(2);
        }
    }
    if (element instanceof Field) {
        return element.getName();
    }
    return null; 
}

开发者ID:papyrusglobal，项目名称:state-channels，代码行数:19，代码来源:CassandraUtil.java

示例2: getNameOfField

import com.datastax.driver.mapping.annotations.Column; //导入依赖的package包/类
private static String getNameOfField(Field f) {
  Column nameAnnotation = f.getAnnotation(Column.class);
  String fieldName = null;

  if (nameAnnotation != null) {
    fieldName = nameAnnotation.name();
  } else {
    fieldName = f.getName();
  }

  return fieldName;
}

开发者ID:Telecooperation，项目名称:assistance-platform-server，代码行数:13，代码来源:CassandraSchemaGenerator.java

示例3: getColumnAnnotation

import com.datastax.driver.mapping.annotations.Column; //导入依赖的package包/类
/**
 * Get the Column annotation for a table field.
 * @param field the field name to put the annotation on
 * @return the annotation
 */
public static AnnotationSpec getColumnAnnotation(String field) {
    AnnotationSpec.Builder builder = AnnotationSpec.builder(Column.class);
    if(MetaData.isSnakeCase(field)) {
        builder.addMember("value", "name = $S", field);
    }
    return builder.build();
}

开发者ID:jtruelove，项目名称:exovert，代码行数:13，代码来源:EntityGeneratorHelper.java

示例4: createStructure

import com.datastax.driver.mapping.annotations.Column; //导入依赖的package包/类
private String createStructure(StructureType structureType, Class<?> c) throws Exception {
  String schemaName = extractSchemaName(c);

  if (schemaName == null) {
    throw new Exception("No table name defined for type / table: " + c.getName());
  }

  Field[] fields = c.getFields();

  String structureName = structureType.name();

  StringBuilder stringBuilder = new StringBuilder("CREATE " + structureName + " ");
  stringBuilder.append(schemaName);
  stringBuilder.append(" (\n");

  int i = 0;
  for (Field f : fields) {
    // Prepare the field name
    Column nameAnnotation = f.getAnnotation(Column.class);
    String fieldName = getNameOfField(f);

    // Append field name
    stringBuilder.append("\t").append(fieldName);

    // Append Field Type
    String fieldType = mapJavaToCassandraType(fieldName, f.getType());
    stringBuilder.append(" ").append(fieldType);

    // Append comma for next line if not last field
    if (i != fields.length - 1 || structureType.equals(StructureType.TABLE)) {
      stringBuilder.append(",\n");
    }

    i++;
  }

  // Append Primary Key description
  if (structureType.equals(StructureType.TABLE)) {
    stringBuilder.append("\t").append(generatePrimaryKey(c));
  }

  // Close create statement
  stringBuilder.append("\n);");

  return stringBuilder.toString();
}

开发者ID:Telecooperation，项目名称:assistance-platform-server，代码行数:47，代码来源:CassandraSchemaGenerator.java