    001    package org.maltparser.core.symbol;
    002
    003    import org.maltparser.core.exception.MaltChainedException;
    004    import org.maltparser.core.feature.function.FeatureFunction;
    005    import org.maltparser.core.feature.function.Modifiable;
    006    import org.maltparser.core.feature.value.FeatureValue;
    007    import org.maltparser.core.feature.value.SingleFeatureValue;
    008    import org.maltparser.core.symbol.nullvalue.NullValues.NullValueId;
    009
    010    public abstract class TableFeature implements FeatureFunction, Modifiable {
    011            protected SingleFeatureValue featureValue;
    012            protected SymbolTable table;
    013            protected String tableName;
    014            protected SymbolTableHandler tableHandler;
    015
    016            public TableFeature() throws MaltChainedException {
    017                    featureValue = new SingleFeatureValue(this);
    018            }
    019
    020            public abstract void update() throws MaltChainedException;
    021            public abstract void initialize(Object[] arguments) throws MaltChainedException;
    022            public abstract Class<?>[] getParameterTypes();
    023
    024            public String getSymbol(int value) throws MaltChainedException {
    025                    return table.getSymbolCodeToString(value);
    026            }
    027
    028            public int getCode(String value) throws MaltChainedException {
    029                    return table.getSymbolStringToCode(value);
    030            }
    031
    032            public SymbolTable getSymbolTable() {
    033                    return table;
    034            }
    035
    036            public void setSymbolTable(SymbolTable table) {
    037                    this.table = table;
    038            }
    039
    040            public void updateCardinality() {
    041                    if (table != null) {
    042                            featureValue.setCardinality(table.getValueCounter());
    043                    } else {
    044                            featureValue.setCardinality(0);
    045                    }
    046            }
    047
    048            public void setFeatureValue(int value) throws MaltChainedException {
    049                    if (table.getSymbolCodeToString(value) == null) {
    050                            featureValue.setCode(value);
    051                            featureValue.setKnown(table.getKnown(value));
    052                            featureValue.setSymbol(table.getNullValueSymbol(NullValueId.NO_NODE));
    053                            featureValue.setNullValue(true);
    054                    } else {
    055                            featureValue.setCode(value);
    056                            featureValue.setKnown(table.getKnown(value));
    057                            featureValue.setSymbol(table.getSymbolCodeToString(value));
    058                            featureValue.setNullValue(table.isNullValue(value));
    059                    }
    060            }
    061
    062            public void setFeatureValue(String value) throws MaltChainedException {
    063                    if (table.getSymbolStringToCode(value) < 0) {
    064                            featureValue.setCode(table.getNullValueCode(NullValueId.NO_NODE));
    065                            featureValue.setKnown(table.getKnown(value));
    066                            featureValue.setSymbol(value);
    067                            featureValue.setNullValue(true);
    068                    } else {
    069                            featureValue.setCode(table.getSymbolStringToCode(value));
    070                            featureValue.setKnown(table.getKnown(value));
    071                            featureValue.setSymbol(value);
    072                            featureValue.setNullValue(table.isNullValue(value));
    073                    }
    074            }
    075
    076            public FeatureValue getFeatureValue() {
    077                    return featureValue;
    078            }
    079
    080            public SymbolTableHandler getTableHandler() {
    081                    return tableHandler;
    082            }
    083
    084            public void setTableHandler(SymbolTableHandler tableHandler) {
    085                    this.tableHandler = tableHandler;
    086            }
    087
    088            public boolean equals(Object obj) {
    089                    if (!(obj instanceof TableFeature)) {
    090                            return false;
    091                    }
    092                    if (!obj.toString().equals(this.toString())) {
    093                            return false;
    094                    }
    095                    return true;
    096            }
    097
    098            public void setTableName(String name) {
    099                    this.tableName = name;
    100            }
    101
    102            public String getTableName() {
    103                    return tableName;
    104            }
    105
    106            public String toString() {
    107                    return tableName;
    108            }
    109    }