|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Objectorg.apache.openjpa.jdbc.kernel.exps.Math
public class Math
Value produced by a mathematical operation on two values.
Field Summary | |
---|---|
static String |
ADD
|
static String |
DIVIDE
|
protected static String |
FALSE
|
static String |
MOD
|
static String |
MULTIPLY
|
static String |
SUBTRACT
|
protected static String |
TRUE
|
Fields inherited from interface org.apache.openjpa.jdbc.kernel.exps.Val |
---|
ABS_VAL, ARGS_VAL, CONCAT_VAL, FORCE_OUTER, INDEXOF_VAL, JOIN_REL, LENGTH_VAL, LOCATE_VAL, LOWER_VAL, MATH_VAL, NULL_CMP, SQRT_VAL, SUBSTRING_VAL, TRIM_VAL, UPPER_VAL, VAL |
Constructor Summary | |
---|---|
Math(Val val1,
Val val2,
String op)
Constructor. |
Method Summary | |
---|---|
void |
acceptVisit(ExpressionVisitor visitor)
|
void |
appendIsEmpty(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql)
Append the SQL testing whether this value is empty to the given buffer. |
void |
appendIsNotEmpty(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql)
Append the SQL testing whether this value is not empty to the given buffer. |
void |
appendIsNotNull(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql)
Append the SQL testing whether this value is not null to the given buffer. |
void |
appendIsNull(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql)
Append the SQL testing whether this value is null to the given buffer. |
void |
appendSize(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql)
Append the SQL checking the size of this value. |
void |
appendTo(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql,
int index)
Append the index th SQL element to the given buffer. |
void |
calculateValue(Select sel,
ExpContext ctx,
ExpState state,
Val other,
ExpState otherState)
Calculate and cache the SQL for this value. |
int |
getId()
|
ClassMetaData |
getMetaData()
|
String |
getOperation()
|
Class |
getType()
|
Val |
getVal1()
|
Val |
getVal2()
|
void |
groupBy(Select sel,
ExpContext ctx,
ExpState state)
Group by this value. |
ExpState |
initialize(Select sel,
ExpContext ctx,
int flags)
Initialize the value. |
boolean |
isAggregate()
|
boolean |
isVariable()
|
boolean |
isXPath()
|
int |
length(Select sel,
ExpContext ctx,
ExpState state)
Return the number of SQL elements in this value. |
Object |
load(ExpContext ctx,
ExpState state,
Result res)
Load the data for this value. |
void |
orderBy(Select sel,
ExpContext ctx,
ExpState state,
boolean asc)
Order by this value. |
void |
select(Select sel,
ExpContext ctx,
ExpState state,
boolean pks)
Select the data for this value. |
void |
selectColumns(Select sel,
ExpContext ctx,
ExpState state,
boolean pks)
Select just the columns for this value. |
void |
setImplicitType(Class type)
|
void |
setMetaData(ClassMetaData meta)
|
Object |
toDataStoreValue(Select sel,
ExpContext ctx,
ExpState state,
Object val)
Return the datastore value of the given object in the context of this value. |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
---|
public static final String ADD
public static final String SUBTRACT
public static final String MULTIPLY
public static final String DIVIDE
public static final String MOD
protected static final String TRUE
protected static final String FALSE
Constructor Detail |
---|
public Math(Val val1, Val val2, String op)
Method Detail |
---|
public Val getVal1()
public Val getVal2()
public String getOperation()
public ClassMetaData getMetaData()
public void setMetaData(ClassMetaData meta)
public Class getType()
public void setImplicitType(Class type)
public ExpState initialize(Select sel, ExpContext ctx, int flags)
Val
public void select(Select sel, ExpContext ctx, ExpState state, boolean pks)
Val
public void selectColumns(Select sel, ExpContext ctx, ExpState state, boolean pks)
Val
public void groupBy(Select sel, ExpContext ctx, ExpState state)
Val
public void orderBy(Select sel, ExpContext ctx, ExpState state, boolean asc)
Val
public Object load(ExpContext ctx, ExpState state, Result res) throws SQLException
Val
SQLException
public void calculateValue(Select sel, ExpContext ctx, ExpState state, Val other, ExpState otherState)
Val
length
or any append
methods.
other
- the value being compared to, or null if not a comparisonpublic int length(Select sel, ExpContext ctx, ExpState state)
Val
public void appendTo(Select sel, ExpContext ctx, ExpState state, SQLBuffer sql, int index)
Val
index
th SQL element to the given buffer.
public void acceptVisit(ExpressionVisitor visitor)
acceptVisit
in interface Value
public int getId()
getId
in interface Val
public boolean isVariable()
isVariable
in interface Value
public boolean isAggregate()
isAggregate
in interface Value
public boolean isXPath()
isXPath
in interface Value
public Object toDataStoreValue(Select sel, ExpContext ctx, ExpState state, Object val)
Val
toDataStoreValue
in interface Val
public void appendIsEmpty(Select sel, ExpContext ctx, ExpState state, SQLBuffer sql)
Val
appendIsEmpty
in interface Val
public void appendIsNotEmpty(Select sel, ExpContext ctx, ExpState state, SQLBuffer sql)
Val
appendIsNotEmpty
in interface Val
public void appendIsNull(Select sel, ExpContext ctx, ExpState state, SQLBuffer sql)
Val
appendIsNull
in interface Val
public void appendIsNotNull(Select sel, ExpContext ctx, ExpState state, SQLBuffer sql)
Val
appendIsNotNull
in interface Val
public void appendSize(Select sel, ExpContext ctx, ExpState state, SQLBuffer sql)
Val
appendSize
in interface Val
|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |