com.caucho.amber.expr

Class ArgExpr

java.lang.Object

com.caucho.amber.expr.AbstractAmberExpr

com.caucho.amber.expr.ArgExpr

All Implemented Interfaces:

AmberExpr

public class ArgExpr
extends AbstractAmberExpr

Parameter argument expression.

Field Summary

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

IS_INNER_JOIN, USES_DATA

Constructor Summary

Constructors

Constructor and Description
ArgExpr(QueryParser parser, int index) Creates a new argument expression.
ArgExpr(QueryParser parser, java.lang.String name, int index) Creates a new named argument expression.

Method Summary

Modifier and Type	Method and Description
AmberExpr	bindSelect(QueryParser parser) Binds the expression as a select item.
boolean	exists() Returns true if the expression must exist
void	generateHaving(CharBuffer cb) Generates the having expression.
void	generateUpdateWhere(CharBuffer cb) Generates the (update) literal.
void	generateWhere(CharBuffer cb) Generates the literal.
int	getIndex() Returns the index value
java.lang.String	getName() Returns the argument name, or null if it is a positional parameter.
AmberType	getType() Returns the expr type.
void	setParameter(java.sql.PreparedStatement pstmt, int i, AmberType[] argTypes, java.lang.Object[] argValues) Sets the parameter.
void	setType(AmberType type) Sets the expr type.
java.lang.String	toString()

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

ArgExpr

public ArgExpr(QueryParser parser,
               int index)

Creates a new argument expression.

Parameters:

index - the argument index

ArgExpr

public ArgExpr(QueryParser parser,
               java.lang.String name,
               int index)

Creates a new named argument expression.

Parameters:

String - the argument name

Method Detail

getIndex

public int getIndex()

Returns the index value

getType

public AmberType getType()

Returns the expr type.

Specified by:

getType in interface AmberExpr

Overrides:

getType in class AbstractAmberExpr

setType

public void setType(AmberType type)

Sets the expr type.

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

exists

public boolean exists()

Returns true if the expression must exist

Specified by:

exists in interface AmberExpr

Overrides:

exists in class AbstractAmberExpr

generateWhere

public void generateWhere(CharBuffer cb)

Generates the literal.

Specified by:

generateWhere in interface AmberExpr

Overrides:

generateWhere in class AbstractAmberExpr

generateUpdateWhere

public void generateUpdateWhere(CharBuffer cb)

Generates the (update) literal.

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

getName

public java.lang.String getName()

Returns the argument name, or null if it is a positional parameter.

setParameter

public void setParameter(java.sql.PreparedStatement pstmt,
                         int i,
                         AmberType[] argTypes,
                         java.lang.Object[] argValues)
                  throws java.sql.SQLException

Sets the parameter.

Throws:

java.sql.SQLException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object