Uses of Class
edu.caltech.nanodb.expressions.ColumnName

Packages that use ColumnName

Package	Description
edu.caltech.nanodb.expressions	This package contains classes for representing and evaluating arithmetic and logical expressions.
edu.caltech.nanodb.queryast
edu.caltech.nanodb.relations	This package contains the basic data-types for representing relations in NanoDB.

Uses of ColumnName in edu.caltech.nanodb.expressions

Fields in edu.caltech.nanodb.expressions declared as ColumnName

Modifier and Type	Field	Description
private ColumnName	ColumnValue.columnName	The name of the column.

Fields in edu.caltech.nanodb.expressions with type parameters of type ColumnName

Modifier and Type	Field	Description
private java.util.Collection<ColumnName>	Expression.SymbolFinder.symbols	If not null, this is the collection of symbols that have been found in the expression.

Methods in edu.caltech.nanodb.expressions that return ColumnName

Modifier and Type	Method	Description
ColumnName	ColumnValue.getColumnName()	Returns the column name object

Methods in edu.caltech.nanodb.expressions with parameters of type ColumnName

Modifier and Type	Method	Description
int	ColumnName.compareTo(ColumnName other)
java.lang.Object	Environment.getColumnValue(ColumnName colName)	Get the actual value at the specified column.
void	ColumnValue.setColumnName(ColumnName columnName)	Sets the column name object

Method parameters in edu.caltech.nanodb.expressions with type arguments of type ColumnName

Modifier and Type	Method	Description
void	Expression.getAllSymbols(java.util.Collection<ColumnName> symbols)	This method stores all of the symbols in an expression into a collection, so that the expression's symbols can be validated against the schema that the expression will be evaluated against.

Constructors in edu.caltech.nanodb.expressions with parameters of type ColumnName

Constructor	Description
ColumnValue(ColumnName columnName)	Initialize a new column-value expression object with the specified column-name.

Constructor parameters in edu.caltech.nanodb.expressions with type arguments of type ColumnName

Constructor	Description
SymbolFinder(java.util.Collection<ColumnName> symbols)	Construct a symbol-finder that can identify whether an expression has symbols or not, as well as optionally collecting the symbols themselves into the Expression.SymbolFinder.symbols collection.

Uses of ColumnName in edu.caltech.nanodb.queryast

Fields in edu.caltech.nanodb.queryast declared as ColumnName

Modifier and Type	Field	Description
private ColumnName	SelectValue.wildcardColumnName	If the SELECT clause includes a wildcard column specifier (e.g.

Fields in edu.caltech.nanodb.queryast with type parameters of type ColumnName

Modifier and Type	Field	Description
private java.util.HashMap<ColumnName,SelectClause>	SelectClause.correlatedWith	If this query is correlated with one or more enclosing queries, this will contain column names, and the corresponding references to the enclosing queries.

Methods in edu.caltech.nanodb.queryast that return ColumnName

Modifier and Type	Method	Description
ColumnName	SelectValue.getWildcard()	Returns the wildcard ColumnName object or null if there is none.

Methods in edu.caltech.nanodb.queryast that return types with arguments of type ColumnName

Modifier and Type	Method	Description
java.util.Set<ColumnName>	SelectClause.getCorrelatedColumns()

Methods in edu.caltech.nanodb.queryast with parameters of type ColumnName

Modifier and Type	Method	Description
private void	SelectClause.resolveColumnRef(java.lang.String desc, Expression expr, ColumnName colName, Schema s, boolean checkParentQueries)	This helper function attempts to resolve a specific column-name against a query's schema.

Uses of ColumnName in edu.caltech.nanodb.relations

Methods in edu.caltech.nanodb.relations that return ColumnName

Modifier and Type	Method	Description
ColumnName	ColumnInfo.getColumnName()	Returns a ColumnName object representing the name of this column.

Methods in edu.caltech.nanodb.relations with parameters of type ColumnName

Modifier and Type	Method	Description
java.util.SortedMap<java.lang.Integer,ColumnInfo>	Schema.findColumns(ColumnName colName)	Given a (possibly wildcard) column-name, this method returns the collection of all columns that match the specified column name.
int	Schema.getColumnIndex(ColumnName colName)	Finds the index of the specified column in this schema, or returns -1 if the schema contains no column of the specified name.