本文整理汇总了Java中org.hsqldb.types.Type.compareToTypeRange方法的典型用法代码示例。如果您正苦于以下问题：Java Type.compareToTypeRange方法的具体用法？Java Type.compareToTypeRange怎么用？Java Type.compareToTypeRange使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.hsqldb.types.Type的用法示例。
在下文中一共展示了Type.compareToTypeRange方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: getFirstRowMulti
import org.hsqldb.types.Type; //导入方法依赖的package包/类
/**
* Uses multiple EQUAL expressions
*/
private void getFirstRowMulti() {
boolean convertible = true;
Object[] currentJoinData =
new Object[rangeVar.rangeIndex.getVisibleColumns()];
for (int i = 0; i < rangeVar.multiColumnCount; i++) {
Type valueType =
rangeVar.findFirstExpressions[i].getRightNode()
.getDataType();
Type targetType =
rangeVar.findFirstExpressions[i].getLeftNode()
.getDataType();
Object value =
rangeVar.findFirstExpressions[i].getRightNode().getValue(
session);
if (targetType.compareToTypeRange(value) != 0) {
convertible = false;
break;
}
currentJoinData[i] = targetType.convertToType(session, value,
valueType);
}
it = convertible
? rangeVar.rangeIndex.findFirstRow(session, store,
currentJoinData, rangeVar.multiColumnCount)
: rangeVar.rangeIndex.emptyIterator();
}
示例2: getFirstRow
import org.hsqldb.types.Type; //导入方法依赖的package包/类
/**
*/
private void getFirstRow() {
Object value =
rangeVar.indexCondition.getRightNode().getValue(session);
Type valueType =
rangeVar.indexCondition.getRightNode().getDataType();
Type targetType =
rangeVar.indexCondition.getLeftNode().getDataType();
int exprType = rangeVar.indexCondition.getType();
int range = 0;
if (targetType != valueType) {
range = targetType.compareToTypeRange(value);
}
if (range == 0) {
value = targetType.convertToType(session, value, valueType);
it = rangeVar.rangeIndex.findFirstRow(session, store, value,
exprType);
} else if (range < 0) {
switch (exprType) {
case OpTypes.GREATER_EQUAL :
case OpTypes.GREATER :
it = rangeVar.rangeIndex.findFirstRowNotNull(session,
store);
break;
default :
it = rangeVar.rangeIndex.emptyIterator();
}
} else {
switch (exprType) {
case OpTypes.SMALLER_EQUAL :
case OpTypes.SMALLER :
it = rangeVar.rangeIndex.findFirstRowNotNull(session,
store);
break;
default :
it = rangeVar.rangeIndex.emptyIterator();
}
}
return;
}