org.apache.cassandra.db

## Class IndexExpression

- java.lang.Object
- - org.apache.cassandra.db.IndexExpression

-     public final class IndexExpression
      extends java.lang.Object

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `java.nio.ByteBuffer` | `column`
    `Operator` | `operator`
    `java.nio.ByteBuffer` | `value`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `IndexExpression(java.nio.ByteBuffer column, Operator operator, java.nio.ByteBuffer value)`

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `equals(java.lang.Object o)`
    `int` | `hashCode()`
    `boolean` | `isContains()` Checks if the operator of this `IndexExpression` is a `CONTAINS` operator.
    `boolean` | `isContainsKey()` Checks if the operator of this `IndexExpression` is a `CONTAINS_KEY` operator.
    `static IndexExpression` | `readFrom(java.io.DataInput input)` Deserializes an `IndexExpression` instance from the specified input.
    `java.lang.String` | `toString()`
    `void` | `writeTo(DataOutputPlus output)` Write the serialized version of this `IndexExpression` to the specified output.

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

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

- - ### Field Detail

    - #### column

          public final java.nio.ByteBuffer column

    - #### operator

          public final Operator operator

    - #### value

          public final java.nio.ByteBuffer value

  - ### Constructor Detail

    - #### IndexExpression

          public IndexExpression(java.nio.ByteBuffer column,
                                 Operator operator,
                                 java.nio.ByteBuffer value)

  - ### Method Detail

    - #### isContains

          public boolean isContains()

      Checks if the operator of this `IndexExpression` is a `CONTAINS` operator.
      Returns:
        `true` if the operator of this `IndexExpression` is a `CONTAINS` operator, `false` otherwise.

    - #### isContainsKey

          public boolean isContainsKey()

      Checks if the operator of this `IndexExpression` is a `CONTAINS_KEY` operator.
      Returns:
        `true` if the operator of this `IndexExpression` is a `CONTAINS_KEY` operator, `false` otherwise.

    - #### toString

          public java.lang.String toString()

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

    - #### equals

          public boolean equals(java.lang.Object o)

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

    - #### hashCode

          public int hashCode()

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

    - #### writeTo

          public void writeTo(DataOutputPlus output)
                       throws java.io.IOException

      Write the serialized version of this `IndexExpression` to the specified output.
      Parameters:
        `output` - the output to write to
      Throws:
        `java.io.IOException` - if an I/O problem occurs while writing to the specified output

    - #### readFrom

          public static IndexExpression readFrom(java.io.DataInput input)
                                          throws java.io.IOException

      Deserializes an `IndexExpression` instance from the specified input.
      Parameters:
        `input` - the input to read from
      Returns:
        the `IndexExpression` instance deserialized
      Throws:
        `java.io.IOException` - if a problem occurs while deserializing the `IndexExpression` instance.

Copyright © 2018 The Apache Software Foundation