public class DBCalcExpr extends DBColumnExpr
There is no need to explicitly create instances of this class.
Instead use DBColumnExpr.plus(Object)
, DBColumnExpr.minus(Object)
,
DBColumnExpr.multiplyWith(Object)
, DBColumnExpr.divideBy(Object)
attributes, beanPropertyName, DBCOLATTR_TITLE, DBCOLATTR_TYPE, options
CTX_ALIAS, CTX_ALL, CTX_DEFAULT, CTX_FULLNAME, CTX_NAME, CTX_NOPARENTHESES, CTX_VALUE
Constructor and Description |
---|
DBCalcExpr(DBColumnExpr expr,
String op,
Object value)
Constructs a DBCalcExpr object Sets the mathematical operations ("+", "-", "*", "/")
for the specified DBColumnExpr object and value. |
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 adds the mathematical operations for
the specified DBColumnExpr object and value to the.
|
Element |
addXml(Element parent,
long flags)
This function set the specified mathematical operations to the XML tag.
|
DBDatabase |
getDatabase()
Returns the current DBDatabase object.
|
DataType |
getDataType()
Returns the data type: DBDataType.DECIMAL.
|
String |
getName()
Returns the given expression name.
|
DBColumn |
getUpdateColumn()
returns null
|
boolean |
isAggregate()
Always returns false since CalcExpressions cannot be aggregates.
|
String |
toString() |
abs, append, as, as, asc, avg, ceiling, cmp, coalesce, convertTo, convertTo, count, countDistinct, day, decode, decode, decode, decode, decode, decode, desc, divideBy, floor, getAttribute, getBeanPropertyName, getControlType, getExprFromPhrase, getExprFromPhrase, getOptions, getSourceColumn, getTitle, in, in, 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, notIn, 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 DBCalcExpr(DBColumnExpr expr, String op, Object value)
expr
- an DBColumnExpr object, one columnop
- the mathematical operation ("+", "-", "*" or "/")value
- the multiply, divide, summate or subtract 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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