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java.lang.Objectcom.mckoi.database.SelectableRange
public final class SelectableRange
An object that represents a range of values to select from a list. A range has a start value, an end value, and whether we should pick inclusive or exclusive of the end value. The start value may be a concrete value from the set or it may be a flag that represents the start or end of the list.
For example, to select the first item from a set the range would be;
RANGE: start = FIRST_VALUE, first end = LAST_VALUE, firstTo select the last item from a set the range would be;
RANGE: start = FIRST_VALUE, last end = LAST_VALUE, lastTo select the range of values between '10' and '15' then range would be;
RANGE: start = FIRST_VALUE, '10' end = LAST_VALUE, '15'Note that the the start value may not compare less than the end value. For example, start can not be 'last' and end can not be 'first'.
Field Summary | |
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static byte |
AFTER_LAST_VALUE
Represents the various points in the set on the value to represent the set range. |
static byte |
BEFORE_FIRST_VALUE
Represents the various points in the set on the value to represent the set range. |
static TObject |
FIRST_IN_SET
An object that represents the first value in the set. |
static byte |
FIRST_VALUE
Represents the various points in the set on the value to represent the set range. |
static SelectableRange |
FULL_RANGE
The range that represents the entire range (including null). |
static SelectableRange |
FULL_RANGE_NO_NULLS
The range that represents the entire range (not including null). |
static TObject |
LAST_IN_SET
An object that represents the last value in the set. |
static byte |
LAST_VALUE
Represents the various points in the set on the value to represent the set range. |
Constructor Summary | |
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SelectableRange(byte set_start_flag,
TObject start,
byte set_end_flag,
TObject end)
Constructs the range. |
Method Summary | |
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boolean |
equals(java.lang.Object ob)
Returns true if this range is equal to the given range. |
TObject |
getEnd()
Returns the end of the range. |
byte |
getEndFlag()
Returns the place for the range to end (either BEFORE_FIRST_VALUE or LAST VALUE). |
TObject |
getStart()
Returns the start of the range. |
byte |
getStartFlag()
Returns the place for the range to start (either FIRST_VALUE or AFTER_LAST_VALUE) |
java.lang.String |
toString()
Outputs this range as a string. |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final TObject FIRST_IN_SET
Note that these objects have no (NULL) type.
public static final TObject LAST_IN_SET
Note that these objects have no (NULL) type.
public static final byte FIRST_VALUE
public static final byte LAST_VALUE
public static final byte BEFORE_FIRST_VALUE
public static final byte AFTER_LAST_VALUE
public static final SelectableRange FULL_RANGE
public static final SelectableRange FULL_RANGE_NO_NULLS
Constructor Detail |
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public SelectableRange(byte set_start_flag, TObject start, byte set_end_flag, TObject end)
Method Detail |
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public TObject getStart()
public TObject getEnd()
public byte getStartFlag()
public byte getEndFlag()
public java.lang.String toString()
toString
in class java.lang.Object
public boolean equals(java.lang.Object ob)
equals
in class java.lang.Object
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