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java.lang.Objectnet.sf.jasperreports.crosstabs.fill.calculation.BucketDefinition
public class BucketDefinition
Bucket definition.
Nested Class Summary | |
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class |
BucketDefinition.Bucket
Bucket value class. |
Field Summary | |
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protected java.util.Comparator |
bucketValueComparator
|
static byte |
ORDER_ASCENDING
Ascending order constant. |
static byte |
ORDER_DESCENDING
Descending order constant. |
protected JRExpression |
orderByExpression
|
protected java.util.Comparator |
orderValueComparator
|
static byte |
TOTAL_POSITION_END
Constants indicating that totals are to be positioned at the end of the other buckets. |
static byte |
TOTAL_POSITION_NONE
Constant indicating that total are not required for this bucket. |
static byte |
TOTAL_POSITION_START
Constants indicating that totals are to be positioned before the other buckets. |
protected BucketDefinition.Bucket |
VALUE_NULL
The null bucket. |
protected BucketDefinition.Bucket |
VALUE_TOTAL
The total value for this bucket. |
protected static byte |
VALUE_TYPE_NULL
Value type used for null bucket values. |
protected static byte |
VALUE_TYPE_TOTAL
Value type used for total buckets. |
protected static byte |
VALUE_TYPE_VALUE
Value type used for non-null values. |
Constructor Summary | |
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BucketDefinition(java.lang.Class valueClass,
JRExpression orderByExpression,
java.util.Comparator comparator,
byte order,
byte totalPosition)
Creates a bucket. |
Method Summary | |
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int |
compareOrderValues(java.lang.Object v1,
java.lang.Object v2)
|
boolean |
computeTotal()
Whether this bucket needs total calculation. |
BucketDefinition.Bucket |
create(java.lang.Object value)
Creates a BucketValue object for a given value. |
protected static java.util.Comparator |
createOrderComparator(java.util.Comparator comparator,
byte order)
|
JRExpression |
getOrderByExpression()
|
byte |
getTotalPosition()
Returns the total bucket position. |
boolean |
hasOrderValues()
|
void |
setComputeTotal()
Instructs that the bucket will need total bucket calculation. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final byte ORDER_ASCENDING
public static final byte ORDER_DESCENDING
public static final byte TOTAL_POSITION_NONE
public static final byte TOTAL_POSITION_START
public static final byte TOTAL_POSITION_END
protected static final byte VALUE_TYPE_VALUE
protected static final byte VALUE_TYPE_NULL
protected static final byte VALUE_TYPE_TOTAL
protected final BucketDefinition.Bucket VALUE_TOTAL
protected final BucketDefinition.Bucket VALUE_NULL
protected final java.util.Comparator bucketValueComparator
protected final JRExpression orderByExpression
protected final java.util.Comparator orderValueComparator
Constructor Detail |
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public BucketDefinition(java.lang.Class valueClass, JRExpression orderByExpression, java.util.Comparator comparator, byte order, byte totalPosition) throws JRException
valueClass
- the class of the bucket valuesorderByExpression
- expression that provides order by valuescomparator
- the comparator to use for bucket sortingorder
- the order type, ORDER_ASCENDING
or ORDER_DESCENDING
descendingtotalPosition
- the position of the total bucket
JRException
Method Detail |
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protected static java.util.Comparator createOrderComparator(java.util.Comparator comparator, byte order)
public boolean computeTotal()
public void setComputeTotal()
computeTotal()
public byte getTotalPosition()
public JRExpression getOrderByExpression()
public boolean hasOrderValues()
public int compareOrderValues(java.lang.Object v1, java.lang.Object v2)
public BucketDefinition.Bucket create(java.lang.Object value)
BucketValue
object for a given value.
value
- the value
BucketValue
object
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