svn-gvsig-desktop / tags / v1_1_Build_1008 / libraries / libGDBMS / src / main / java / com / hardcode / gdbms / engine / instruction / LValueAdapter.java @ 12520
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| 1 | 3199 | fjp | /*
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| 2 | * Created on 12-oct-2004
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| 3 | */
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| 4 | package com.hardcode.gdbms.engine.instruction; |
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| 5 | |||
| 6 | import com.hardcode.gdbms.engine.values.Value; |
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| 7 | |||
| 8 | |||
| 9 | /**
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| 10 | * Adaptador
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| 11 | *
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| 12 | * @author Fernando Gonz?lez Cort?s
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| 13 | */
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| 14 | public class LValueAdapter extends AbstractExpression { |
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| 15 | /**
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| 16 | * @see com.hardcode.gdbms.engine.instruction.Expression#getFieldName()
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| 17 | */
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| 18 | public String getFieldName() { |
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| 19 | return ((Expression) getChilds()[0]).getFieldName(); |
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| 20 | } |
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| 21 | |||
| 22 | /**
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| 23 | * @see com.hardcode.gdbms.engine.instruction.Expression#simplify()
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| 24 | */
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| 25 | public void simplify() { |
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| 26 | getParent().replaceChild(this, getChilds()[0]); |
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| 27 | } |
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| 28 | |||
| 29 | /**
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| 30 | * @see com.hardcode.gdbms.engine.instruction.CachedExpression#evaluate(long)
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| 31 | */
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| 32 | public Value evaluate(long row) throws EvaluationException { |
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| 33 | return ((Expression) getChilds()[0]).evaluateExpression(row); |
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| 34 | } |
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| 35 | |||
| 36 | /**
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| 37 | * @see com.hardcode.gdbms.engine.instruction.CachedExpression#isLiteral()
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| 38 | */
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| 39 | public boolean isLiteral() { |
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| 40 | return ((Expression) getChilds()[0]).isLiteral(); |
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| 41 | } |
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| 42 | } |