org.apache.cassandra.cql

## Class UpdateStatement

- java.lang.Object
- - org.apache.cassandra.cql.AbstractModification
  - - org.apache.cassandra.cql.UpdateStatement

-     public class UpdateStatement
      extends AbstractModification

  An `UPDATE` statement parsed from a CQL query statement.

- - ### Field Summary

    - ### Fields inherited from class org.apache.cassandra.cql.AbstractModification

      `cLevel, columnFamily, defaultConsistency, keyName, keyspace, timestamp, timeToLive`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `UpdateStatement(java.lang.String keyspace, java.lang.String columnFamily, java.lang.String keyName, java.util.List<Term> columnNames, java.util.List<Term> columnValues, java.util.List<Term> keys, Attributes attrs)` Creates a new UpdateStatement from a column family name, a consistency level, key, and lists of column names and values.
    `UpdateStatement(java.lang.String keyspace, java.lang.String columnFamily, java.lang.String keyName, java.util.Map<Term,Operation> columns, java.util.List<Term> keys, Attributes attrs)` Creates a new UpdateStatement from a column family name, columns map, consistency level, and key term.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `java.lang.String` | `getColumnFamily()`
    `java.util.List<Term>` | `getColumnNames()`
    `java.util.Map<Term,Operation>` | `getColumns()`
    `java.util.List<Term>` | `getColumnValues()`
    `ConsistencyLevel` | `getConsistencyLevel()` Returns the consistency level of this `UPDATE` statement, either one parsed from the CQL statement, or the default level otherwise.
    `java.util.List<Term>` | `getKeys()`
    `AbstractType<?>` | `getKeyType(java.lang.String keyspace)`
    `boolean` | `isSetConsistencyLevel()` True if an explicit consistency level was parsed from the statement.
    `java.util.List<IMutation>` | `prepareRowMutations(java.lang.String keyspace, ThriftClientState clientState, java.util.List<java.nio.ByteBuffer> variables)` Convert statement into a list of mutations to apply on the server
    `java.util.List<IMutation>` | `prepareRowMutations(java.lang.String keyspace, ThriftClientState clientState, java.lang.Long timestamp, java.util.List<java.nio.ByteBuffer> variables)` Convert statement into a list of mutations to apply on the server
    `java.lang.String` | `toString()`

    - ### Methods inherited from class org.apache.cassandra.cql.AbstractModification

      `getKeyName, getKeyspace, getTimestamp, getTimeToLive, isSetTimestamp`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### UpdateStatement

          public UpdateStatement(java.lang.String keyspace,
                         java.lang.String columnFamily,
                         java.lang.String keyName,
                         java.util.Map<Term,Operation> columns,
                         java.util.List<Term> keys,
                         Attributes attrs)

      Creates a new UpdateStatement from a column family name, columns map, consistency level, and key term.
      Parameters:
        `keyspace` - Keyspace (optional)
        `columnFamily` - column family name
        `keyName` - alias key name
        `columns` - a map of column name/values pairs
        `keys` - the keys to update
        `attrs` - additional attributes for statement (CL, timestamp, timeToLive)

    - #### UpdateStatement

          public UpdateStatement(java.lang.String keyspace,
                         java.lang.String columnFamily,
                         java.lang.String keyName,
                         java.util.List<Term> columnNames,
                         java.util.List<Term> columnValues,
                         java.util.List<Term> keys,
                         Attributes attrs)

      Creates a new UpdateStatement from a column family name, a consistency level, key, and lists of column names and values. It is intended for use with the alternate update format, `INSERT`.
      Parameters:
        `keyspace` - Keyspace (optional)
        `columnFamily` - column family name
        `keyName` - alias key name
        `columnNames` - list of column names
        `columnValues` - list of column values (corresponds to names)
        `keys` - the keys to update
        `attrs` - additional attributes for statement (CL, timestamp, timeToLive)

  - ### Method Detail

    - #### getConsistencyLevel

          public ConsistencyLevel getConsistencyLevel()

      Returns the consistency level of this `UPDATE` statement, either one parsed from the CQL statement, or the default level otherwise.
      Overrides:
        `getConsistencyLevel` in class `AbstractModification`
      Returns:
        the consistency level as a Thrift enum.

    - #### isSetConsistencyLevel

          public boolean isSetConsistencyLevel()

      True if an explicit consistency level was parsed from the statement.
      Overrides:
        `isSetConsistencyLevel` in class `AbstractModification`
      Returns:
        true if a consistency was parsed, false otherwise.

    - #### prepareRowMutations

          public java.util.List<IMutation> prepareRowMutations(java.lang.String keyspace,
                                                      ThriftClientState clientState,
                                                      java.util.List<java.nio.ByteBuffer> variables)
                                                        throws InvalidRequestException,
                                                               UnauthorizedException

      Convert statement into a list of mutations to apply on the server
      Specified by:
        `prepareRowMutations` in class `AbstractModification`
      Parameters:
        `keyspace` - The working keyspace
        `clientState` - current client status
      Returns:
        list of the mutations
      Throws:
        `InvalidRequestException` - on the wrong request
        `UnauthorizedException`

    - #### prepareRowMutations

          public java.util.List<IMutation> prepareRowMutations(java.lang.String keyspace,
                                                      ThriftClientState clientState,
                                                      java.lang.Long timestamp,
                                                      java.util.List<java.nio.ByteBuffer> variables)
                                                        throws InvalidRequestException,
                                                               UnauthorizedException

      Convert statement into a list of mutations to apply on the server
      Specified by:
        `prepareRowMutations` in class `AbstractModification`
      Parameters:
        `keyspace` - The working keyspace
        `clientState` - current client status
        `timestamp` - global timestamp to use for all mutations
      Returns:
        list of the mutations
      Throws:
        `InvalidRequestException` - on the wrong request
        `UnauthorizedException`

    - #### getColumnFamily

          public java.lang.String getColumnFamily()

      Overrides:
        `getColumnFamily` in class `AbstractModification`

    - #### getKeys

          public java.util.List<Term> getKeys()

    - #### getColumns

          public java.util.Map<Term,Operation> getColumns()
                                                   throws InvalidRequestException

      Throws:
        `InvalidRequestException`

    - #### toString

          public java.lang.String toString()

      Overrides:
        `toString` in class `java.lang.Object`

    - #### getKeyType

          public AbstractType<?> getKeyType(java.lang.String keyspace)

    - #### getColumnNames

          public java.util.List<Term> getColumnNames()

    - #### getColumnValues

          public java.util.List<Term> getColumnValues()

Copyright © 2014 The Apache Software Foundation