26 lines
1.0 KiB
Java
26 lines
1.0 KiB
Java
package net.sf.jasperreports.engine.fill;
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class JRByteDistinctCountIncrementer extends JRAbstractExtendedIncrementer {
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private static JRByteDistinctCountIncrementer mainInstance = new JRByteDistinctCountIncrementer();
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public static JRByteDistinctCountIncrementer getInstance() {
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return mainInstance;
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}
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public Object increment(JRCalculable variable, Object expressionValue, AbstractValueProvider valueProvider) {
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DistinctCountHolder holder = (DistinctCountHolder)valueProvider.getValue(variable.getHelperVariable((byte)0));
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if (variable.isInitialized())
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holder.init();
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return new Byte((byte)(int)holder.getCount());
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}
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public Object combine(JRCalculable calculable, JRCalculable calculableValue, AbstractValueProvider valueProvider) {
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DistinctCountHolder holder = (DistinctCountHolder)valueProvider.getValue(calculable.getHelperVariable((byte)0));
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return new Byte((byte)(int)holder.getCount());
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}
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public Object initialValue() {
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return JRByteIncrementerFactory.ZERO;
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}
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}
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