com.caucho.amber.expr.fun

Class FunExpr

java.lang.Object

com.caucho.amber.expr.AbstractAmberExpr

com.caucho.amber.expr.fun.FunExpr

All Implemented Interfaces:

AmberExpr

Direct Known Subclasses:

AbsFunExpr, ConcatFunExpr, DateTimeFunExpr, LengthFunExpr, LocateFunExpr, LowerFunExpr, MaxFunExpr, MinFunExpr, ModFunExpr, SizeFunExpr, SqrtFunExpr, SubstringFunExpr, SumFunExpr, TrimFunExpr, UpperFunExpr

public class FunExpr
extends AbstractAmberExpr

Function expression

Field Summary

Fields inherited from interface com.caucho.amber.expr.AmberExpr

IS_INNER_JOIN, USES_DATA

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FunExpr(QueryParser parser, java.lang.String id, java.util.ArrayList<AmberExpr> args, boolean distinct) Creates a new function expression

Method Summary

Modifier and Type	Method and Description
AmberExpr	bindSelect(QueryParser parser) Binds the expression as a select item.
static FunExpr	create(QueryParser parser, java.lang.String id, java.util.ArrayList<AmberExpr> args, boolean distinct)
void	generateHaving(CharBuffer cb) Generates the having expression.
void	generateUpdateWhere(CharBuffer cb) Generates the (update) where expression.
void	generateWhere(CharBuffer cb) Generates the where expression.
java.util.ArrayList<AmberExpr>	getArgs() Returns the args.
java.lang.Object	getObject(AmberConnection aConn, java.sql.ResultSet rs, int index) Returns the object for the expr.
AmberType	getType() Returns the expr type.
java.lang.String	toString()
boolean	usesFrom(FromItem from, int type, boolean isNot) Returns true if the expression uses the from item.

Methods inherited from class com.caucho.amber.expr.AbstractAmberExpr

createBoolean, exists, exists, findItem, generateJoin, generateSelect, getCacheObject, getColumnCount, hasRelationship, isBoolean, replaceJoin, setInternalArgType, usesFrom

Methods inherited from class java.lang.Object

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

Constructor Detail

FunExpr

protected FunExpr(QueryParser parser,
                  java.lang.String id,
                  java.util.ArrayList<AmberExpr> args,
                  boolean distinct)

Creates a new function expression

Method Detail

create

public static FunExpr create(QueryParser parser,
                             java.lang.String id,
                             java.util.ArrayList<AmberExpr> args,
                             boolean distinct)

bindSelect

public AmberExpr bindSelect(QueryParser parser)

Binds the expression as a select item.

Specified by:

bindSelect in interface AmberExpr

Specified by:

bindSelect in class AbstractAmberExpr

getType

public AmberType getType()

Returns the expr type.

Specified by:

getType in interface AmberExpr

Overrides:

getType in class AbstractAmberExpr

usesFrom

public boolean usesFrom(FromItem from,
                        int type,
                        boolean isNot)

Returns true if the expression uses the from item.

Specified by:

usesFrom in interface AmberExpr

Overrides:

usesFrom in class AbstractAmberExpr

generateWhere

public void generateWhere(CharBuffer cb)

Generates the where expression.

Specified by:

generateWhere in interface AmberExpr

Overrides:

generateWhere in class AbstractAmberExpr

generateUpdateWhere

public void generateUpdateWhere(CharBuffer cb)

Generates the (update) where expression.

Specified by:

generateUpdateWhere in interface AmberExpr

Overrides:

generateUpdateWhere in class AbstractAmberExpr

generateHaving

public void generateHaving(CharBuffer cb)

Generates the having expression.

Specified by:

generateHaving in interface AmberExpr

Overrides:

generateHaving in class AbstractAmberExpr

getObject

public java.lang.Object getObject(AmberConnection aConn,
                                  java.sql.ResultSet rs,
                                  int index)
                           throws java.sql.SQLException

Returns the object for the expr.

Specified by:

getObject in interface AmberExpr

Overrides:

getObject in class AbstractAmberExpr

Throws:

java.sql.SQLException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getArgs

public java.util.ArrayList<AmberExpr> getArgs()

Returns the args.