org.apache.cassandra.cql3.conditions

Class ColumnCondition

java.lang.Object

org.apache.cassandra.cql3.conditions.ColumnCondition

public abstract class ColumnCondition
extends java.lang.Object

A CQL3 condition on the value of a column or collection element. For example, "UPDATE .. IF a = 0".

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ColumnCondition.Bound
static class	ColumnCondition.Raw

Field Summary

Fields

Modifier and Type	Field and Description
ColumnMetadata	column
Operator	operator

Method Summary

Modifier and Type	Method and Description
void	addFunctionsTo(java.util.List<Function> functions) Adds functions for the bind variables of this operation.
abstract ColumnCondition.Bound	bind(QueryOptions options)
protected java.util.List<java.nio.ByteBuffer>	bindAndGetTerms(QueryOptions options)
protected java.util.List<Term.Terminal>	bindTerms(QueryOptions options)
void	collectMarkerSpecification(VariableSpecifications boundNames) Collects the column specification for the bind variables of this operation.
static ColumnCondition	condition(ColumnMetadata column, FieldIdentifier udtField, Operator op, Terms terms) A UDT column, simple condition.
static ColumnCondition	condition(ColumnMetadata column, Operator op, Terms terms) A regular column, simple condition.
static ColumnCondition	condition(ColumnMetadata column, Term collectionElement, Operator op, Terms terms) A collection column, simple condition.
protected static boolean	evaluateComparisonWithOperator(int comparison, Operator operator)
protected static Cell<?>	getCell(Row row, ColumnMetadata column)
protected static Cell<?>	getCell(Row row, ColumnMetadata column, CellPath path)
protected static java.util.Iterator<Cell<?>>	getCells(Row row, ColumnMetadata column)

Methods inherited from class java.lang.Object

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

Field Detail

column

public final ColumnMetadata column

operator

public final Operator operator

Method Detail

addFunctionsTo

public void addFunctionsTo(java.util.List<Function> functions)

Adds functions for the bind variables of this operation.

Parameters:

functions - the list of functions to get add

collectMarkerSpecification

public void collectMarkerSpecification(VariableSpecifications boundNames)

Collects the column specification for the bind variables of this operation.

Parameters:

boundNames - the list of column specification where to collect the bind variables of this term in.

bind

public abstract ColumnCondition.Bound bind(QueryOptions options)

bindAndGetTerms

protected final java.util.List<java.nio.ByteBuffer> bindAndGetTerms(QueryOptions options)

bindTerms

protected final java.util.List<Term.Terminal> bindTerms(QueryOptions options)

condition

public static ColumnCondition condition(ColumnMetadata column,
                                        Operator op,
                                        Terms terms)

A regular column, simple condition.

condition

public static ColumnCondition condition(ColumnMetadata column,
                                        Term collectionElement,
                                        Operator op,
                                        Terms terms)

A collection column, simple condition.

condition

public static ColumnCondition condition(ColumnMetadata column,
                                        FieldIdentifier udtField,
                                        Operator op,
                                        Terms terms)

A UDT column, simple condition.

getCell

protected static final Cell<?> getCell(Row row,
                                       ColumnMetadata column)

getCell

protected static final Cell<?> getCell(Row row,
                                       ColumnMetadata column,
                                       CellPath path)

getCells

protected static final java.util.Iterator<Cell<?>> getCells(Row row,
                                                            ColumnMetadata column)

evaluateComparisonWithOperator

protected static final boolean evaluateComparisonWithOperator(int comparison,
                                                              Operator operator)