Java Code Examples for com.google.datastore.v1.Value#getValueTypeCase()

/**
 * @return the double contained in value
 * @throws IllegalArgumentException if the value does not contain a double.
 */
public static double getDouble(Value value) {
  if (value.getValueTypeCase() != ValueTypeCase.DOUBLE_VALUE) {
    throw new IllegalArgumentException("Value does not contain a double.");
  }
  return value.getDoubleValue();
}
 

/**
 * @return the key contained in value
 * @throws IllegalArgumentException if the value does not contain a key.
 */
public static Key getKey(Value value) {
  if (value.getValueTypeCase() != ValueTypeCase.KEY_VALUE) {
    throw new IllegalArgumentException("Value does not contain a key.");
  }
  return value.getKeyValue();
}
 

/**
 * @return the blob contained in value
 * @throws IllegalArgumentException if the value does not contain a blob.
 */
public static ByteString getByteString(Value value) {
  if (value.getMeaning() == 18 && value.getValueTypeCase() == ValueTypeCase.STRING_VALUE) {
    return value.getStringValueBytes();
  } else if (value.getValueTypeCase() == ValueTypeCase.BLOB_VALUE) {
    return value.getBlobValue();
  }
  throw new IllegalArgumentException("Value does not contain a blob.");
}
 

/**
 * @return the entity contained in value
 * @throws IllegalArgumentException if the value does not contain an entity.
 */
public static Entity getEntity(Value value) {
  if (value.getValueTypeCase() != ValueTypeCase.ENTITY_VALUE) {
    throw new IllegalArgumentException("Value does not contain an Entity.");
  }
  return value.getEntityValue();
}
 

/**
 * @return the string contained in value
 * @throws IllegalArgumentException if the value does not contain a string.
 */
public static String getString(Value value) {
  if (value.getValueTypeCase() != ValueTypeCase.STRING_VALUE) {
    throw new IllegalArgumentException("Value does not contain a string.");
  }
  return value.getStringValue();
}
 

/**
 * @return the boolean contained in value
 * @throws IllegalArgumentException if the value does not contain a boolean.
 */
public static boolean getBoolean(Value value) {
  if (value.getValueTypeCase() != ValueTypeCase.BOOLEAN_VALUE) {
    throw new IllegalArgumentException("Value does not contain a boolean.");
  }
  return value.getBooleanValue();
}
 

/**
 * @return the long contained in value
 * @throws IllegalArgumentException if the value does not contain a long.
 */
public static long getLong(Value value) {
  if (value.getValueTypeCase() != ValueTypeCase.INTEGER_VALUE) {
    throw new IllegalArgumentException("Value does not contain an integer.");
  }
  return value.getIntegerValue();
}
 

/**
 * @return the timestamp in microseconds contained in value
 * @throws IllegalArgumentException if the value does not contain a timestamp.
 */
public static long getTimestamp(Value value) {
  if (value.getMeaning() == 18 && value.getValueTypeCase() == ValueTypeCase.INTEGER_VALUE) {
    return value.getIntegerValue();
  } else if (value.getValueTypeCase() == ValueTypeCase.TIMESTAMP_VALUE) {
    return toMicroseconds(value.getTimestampValue());
  }
  throw new IllegalArgumentException("Value does not contain a timestamp.");
}
 

/**
 * @return the array contained in value as a list.
 * @throws IllegalArgumentException if the value does not contain an array.
 */
public static List<Value> getList(Value value) {
  if (value.getValueTypeCase() != ValueTypeCase.ARRAY_VALUE) {
    throw new IllegalArgumentException("Value does not contain an array.");
  }
  return value.getArrayValue().getValuesList();
}