org.apache.cassandra.cql3

Interface Term

All Known Implementing Classes:

AbstractMarker, Constants.Marker, Constants.Value, FunctionCall, Lists.DelayedValue, Lists.Marker, Lists.Value, Maps.DelayedValue, Maps.Marker, Maps.Value, Sets.DelayedValue, Sets.Marker, Sets.Value, Term.MultiItemTerminal, Term.NonTerminal, Term.Terminal, Tuples.DelayedValue, Tuples.InMarker, Tuples.InValue, Tuples.Marker, Tuples.Value

public interface Term

A CQL3 term, i.e. a column value with or without bind variables. A Term can be either terminal or non terminal. A term object is one that is typed and is obtained from a raw term (Term.Raw) by poviding the actual receiver to which the term is supposed to be a value of.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	Term.MultiColumnRaw
static class	Term.MultiItemTerminal
static class	Term.NonTerminal A non terminal term, i.e.
static interface	Term.Raw A parsed, non prepared (thus untyped) term.
static class	Term.Terminal A terminal term, one that can be reduced to a byte buffer directly.

Method Summary

Methods

Modifier and Type	Method and Description
Term.Terminal	bind(java.util.List<java.nio.ByteBuffer> values) Bind the values in this term to the values contained in values.
java.nio.ByteBuffer	bindAndGet(java.util.List<java.nio.ByteBuffer> values) A shorter for bind(values).get().
void	collectMarkerSpecification(VariableSpecifications boundNames) Collects the column specification for the bind variables in this Term.
boolean	containsBindMarker() Whether or not that term contains at least one bind marker.

Method Detail

collectMarkerSpecification

void collectMarkerSpecification(VariableSpecifications boundNames)

Collects the column specification for the bind variables in this Term. This is obviously a no-op if the term is Terminal.

Parameters:

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

bind

Term.Terminal bind(java.util.List<java.nio.ByteBuffer> values)
                   throws InvalidRequestException

Bind the values in this term to the values contained in values. This is obviously a no-op if the term is Terminal.

Parameters:

values - the values to bind markers to.

Returns:

the result of binding all the variables of this NonTerminal (or 'this' if the term is terminal).

Throws:

InvalidRequestException

bindAndGet

java.nio.ByteBuffer bindAndGet(java.util.List<java.nio.ByteBuffer> values)
                               throws InvalidRequestException

A shorter for bind(values).get(). We expose it mainly because for constants it can avoids allocating a temporary object between the bind and the get (note that we still want to be able to separate bind and get for collections).

Throws:

InvalidRequestException

containsBindMarker

boolean containsBindMarker()

Whether or not that term contains at least one bind marker. Note that this is slightly different from being or not a NonTerminal, because calls to non pure functions will be NonTerminal (see #5616) even if they don't have bind markers.