public class DBScalarExpr extends DBColumnExpr
Modifier and Type | Field and Description |
---|---|
DataType |
dataType |
DBDatabase |
db |
protected Object[] |
params |
String |
template |
attributes, beanPropertyName, DBCOLATTR_TITLE, DBCOLATTR_TYPE, options
CTX_ALIAS, CTX_ALL, CTX_DEFAULT, CTX_FULLNAME, CTX_NAME, CTX_NOPARENTHESES, CTX_VALUE
Constructor and Description |
---|
DBScalarExpr(DBDatabase db,
String template,
Object[] params,
DataType dataType)
Constructs a new DBValueExpr object.
|
DBScalarExpr(DBDatabase db,
String template,
Object param,
DataType dataType)
Constructs a new DBValueExpr object.
|
Modifier and Type | Method and Description |
---|---|
void |
addReferencedColumns(Set<DBColumn> list)
Internal function to obtain all DBColumnExpr-objects used by this expression.
|
void |
addSQL(StringBuilder buf,
long context)
Creates the SQL-Command.
|
Element |
addXml(Element parent,
long flags)
this helper function calls the DBColumnExpr.addXML(Element, long) method
|
DBDatabase |
getDatabase()
Returns the current DBDatabase object.
|
DataType |
getDataType()
Returns the data type of the DBColumnExpr object.
|
String |
getName()
Returns the column name.
|
Object[] |
getParams()
return the value associated with this value expression
|
DBColumn |
getUpdateColumn()
Returns null.
|
boolean |
isAggregate()
Always returns false since value expressions cannot be an aggregate.
|
void |
setParams(Object[] params)
set the value associated with this value expression
|
abs, append, as, as, asc, avg, ceiling, cmp, coalesce, convertTo, convertTo, count, countDistinct, day, decode, decode, decode, decode, decode, decode, desc, detectDataType, divideBy, floor, getAttribute, getBeanPropertyName, getControlType, getExprFromPhrase, getExprFromPhrase, getOptions, getSourceColumn, getTitle, in, indexOf, indexOf, indexOf, is, isBetween, isGreaterThan, isLessOrEqual, isMoreOrEqual, isNot, isNotBetween, isSmallerThan, length, like, like, likeLower, likeUpper, lower, max, min, minus, minus, modulo, month, multiplyWith, notIn, notLike, nvl, parenthesis, plus, plus, replace, reverse, round, setAttribute, setBeanPropertyName, setControlType, setOptions, setTitle, substring, substring, substring, substring, substring, substring, sum, toChar, toChar, trim, trimLeft, trimRight, trunc, upper, when, year
getObjectValue, getValueClass
public final DBDatabase db
public final DataType dataType
public final String template
protected Object[] params
public DBScalarExpr(DBDatabase db, String template, Object[] params, DataType dataType)
db
- the databasevalue
- the value for this constanttype
- the data type for this constantpublic DBScalarExpr(DBDatabase db, String template, Object param, DataType dataType)
db
- the databasevalue
- the value for this constanttype
- the data type for this constantpublic Object[] getParams()
public void setParams(Object[] params)
the
- valuepublic DBDatabase getDatabase()
getDatabase
in class DBObject
public DataType getDataType()
getDataType
in interface ColumnExpr
getDataType
in class DBColumnExpr
DataType
public String getName()
getName
in interface ColumnExpr
getName
in class DBColumnExpr
public Element addXml(Element parent, long flags)
addXml
in class DBColumnExpr
parent
- the parent element to which to append the column descriptionflags
- currently not usedpublic DBColumn getUpdateColumn()
getUpdateColumn
in class DBColumnExpr
public boolean isAggregate()
isAggregate
in class DBColumnExpr
public void addReferencedColumns(Set<DBColumn> list)
DBExpr
addReferencedColumns
in class DBExpr
list
- list to which all used column expressions must be addedDBExpr.addReferencedColumns(Set)
public void addSQL(StringBuilder buf, long context)
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