Package org.apache.cassandra.cql3

Class WhereClause

java.lang.Object

org.apache.cassandra.cql3.WhereClause

public final class WhereClause
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	WhereClause.Builder

Field Summary

Fields

Modifier and Type	Field	Description
java.util.List<CustomIndexExpression>	expressions
java.util.List<Relation>	relations

Method Summary

Modifier and Type	Method	Description
boolean	containsCustomExpressions()
boolean	containsTokenRelations()	Checks if the where clause contains some token relations.
static WhereClause	empty()
boolean	equals(java.lang.Object o)
int	hashCode()
static WhereClause	parse(java.lang.String cql)
WhereClause	renameIdentifier(ColumnIdentifier from, ColumnIdentifier to)	Renames identifiers in all relations
java.lang.String	toCQLString()	Returns a CQL representation of this WHERE clause.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

relations

public final java.util.List<Relation> relations

expressions

public final java.util.List<CustomIndexExpression> expressions

Method Detail

empty

public static WhereClause empty()

containsCustomExpressions

public boolean containsCustomExpressions()

renameIdentifier

public WhereClause renameIdentifier(ColumnIdentifier from,
                                    ColumnIdentifier to)

Renames identifiers in all relations

Parameters:

from - the old identifier

to - the new identifier

Returns:

a new WhereClause with with "from" replaced by "to" in all relations

parse

public static WhereClause parse(java.lang.String cql)
                         throws org.antlr.runtime.RecognitionException

Throws:

org.antlr.runtime.RecognitionException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

toCQLString

public java.lang.String toCQLString()

Returns a CQL representation of this WHERE clause.

Returns:

a CQL representation of this WHERE clause

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

containsTokenRelations

public boolean containsTokenRelations()

Checks if the where clause contains some token relations.

Returns:

true if it is the case, false otherwise.