com.samskivert.jdbc.depot.expression
Class FunctionExp

java.lang.Object
  com.samskivert.jdbc.depot.expression.FunctionExp

All Implemented Interfaces:

SQLExpression

public class FunctionExp
extends Object
implements SQLExpression

An expression for a function, e.g. FLOOR(blah).

Field Summary

protected SQLExpression[]	_arguments The arguments to this function
protected String	_function The literal name of this function, e.g.

Constructor Summary

FunctionExp(String function, SQLExpression... arguments)
Create a new FunctionExp with the given function and arguments.

Method Summary

void	accept(ExpressionVisitor builder) Most uses of this class have been implemented with a visitor pattern.
void	addClasses(Collection<Class<? extends PersistentRecord>> classSet) Adds all persistent classes that are brought into the SQL context by this clause: FROM clauses, JOINs, UPDATEs, anything that could create a new table abbreviation.
SQLExpression[]	getArguments()
String	getFunction()

Methods inherited from class java.lang.Object

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

Field Detail

_function

protected String _function

The literal name of this function, e.g. FLOOR

_arguments

protected SQLExpression[] _arguments

The arguments to this function

Constructor Detail

FunctionExp

public FunctionExp(String function,
                   SQLExpression... arguments)

Create a new FunctionExp with the given function and arguments.

Method Detail

accept

public void accept(ExpressionVisitor builder)
            throws Exception

Description copied from interface: SQLExpression

Most uses of this class have been implemented with a visitor pattern. Create your own ExpressionVisitor and call this method with it.

Specified by:

accept in interface SQLExpression

Throws:

Exception

See Also:

SQLBuilder

addClasses

public void addClasses(Collection<Class<? extends PersistentRecord>> classSet)

Description copied from interface: SQLExpression

Adds all persistent classes that are brought into the SQL context by this clause: FROM clauses, JOINs, UPDATEs, anything that could create a new table abbreviation. This method should recurse into any subordinate state that may in turn bring in new classes so that sub-queries work correctly.

Specified by:

addClasses in interface SQLExpression

getFunction

public String getFunction()

getArguments

public SQLExpression[] getArguments()