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Example 71 with SQLExpression

use of org.datanucleus.store.rdbms.sql.expression.SQLExpression in project datanucleus-rdbms by datanucleus.

the class StringConcat1Method method getExpression.

/* (non-Javadoc)
     * @see org.datanucleus.store.rdbms.sql.method.SQLMethod#getExpression(org.datanucleus.store.rdbms.sql.expression.SQLExpression, java.util.List)
     */
public SQLExpression getExpression(SQLStatement stmt, SQLExpression expr, List<SQLExpression> args) {
    if (args == null || args.size() != 1) {
        throw new NucleusException(Localiser.msg("060003", "concat", "StringExpression", 0, "StringExpression/CharacterExpression/Parameter"));
    }
    SQLExpression otherExpr = args.get(0);
    if (!(otherExpr instanceof StringExpression) && !(otherExpr instanceof CharacterExpression) && !(otherExpr instanceof ParameterLiteral)) {
        throw new NucleusException(Localiser.msg("060003", "concat", "StringExpression", 0, "StringExpression/CharacterExpression/Parameter"));
    }
    ArrayList funcArgs = new ArrayList();
    funcArgs.add(expr);
    funcArgs.add(otherExpr);
    return new StringExpression(expr, Expression.OP_CONCAT, otherExpr);
}
Also used : ParameterLiteral(org.datanucleus.store.rdbms.sql.expression.ParameterLiteral) SQLExpression(org.datanucleus.store.rdbms.sql.expression.SQLExpression) StringExpression(org.datanucleus.store.rdbms.sql.expression.StringExpression) ArrayList(java.util.ArrayList) NucleusException(org.datanucleus.exceptions.NucleusException) CharacterExpression(org.datanucleus.store.rdbms.sql.expression.CharacterExpression)

Example 72 with SQLExpression

use of org.datanucleus.store.rdbms.sql.expression.SQLExpression in project datanucleus-rdbms by datanucleus.

the class StringConcat2Method method getExpression.

/* (non-Javadoc)
     * @see org.datanucleus.store.rdbms.sql.method.SQLMethod#getExpression(org.datanucleus.store.rdbms.sql.expression.SQLExpression, java.util.List)
     */
public SQLExpression getExpression(SQLStatement stmt, SQLExpression expr, List<SQLExpression> args) {
    if (args == null || args.size() != 1) {
        throw new NucleusException(Localiser.msg("060003", "concat", "StringExpression", 0, "StringExpression/CharacterExpression/Parameter"));
    }
    SQLExpression otherExpr = args.get(0);
    if (!(otherExpr instanceof StringExpression) && !(otherExpr instanceof CharacterExpression) && !(otherExpr instanceof ParameterLiteral)) {
        throw new NucleusException(Localiser.msg("060003", "concat", "StringExpression", 0, "StringExpression/CharacterExpression/Parameter"));
    }
    ArrayList funcArgs = new ArrayList();
    funcArgs.add(expr);
    funcArgs.add(otherExpr);
    return new StringExpression(stmt, stmt.getSQLExpressionFactory().getMappingForType(String.class), "CONCAT", funcArgs);
}
Also used : ParameterLiteral(org.datanucleus.store.rdbms.sql.expression.ParameterLiteral) SQLExpression(org.datanucleus.store.rdbms.sql.expression.SQLExpression) StringExpression(org.datanucleus.store.rdbms.sql.expression.StringExpression) ArrayList(java.util.ArrayList) NucleusException(org.datanucleus.exceptions.NucleusException) CharacterExpression(org.datanucleus.store.rdbms.sql.expression.CharacterExpression)

Example 73 with SQLExpression

use of org.datanucleus.store.rdbms.sql.expression.SQLExpression in project datanucleus-rdbms by datanucleus.

the class StringEndsWithMethod method getExpression.

/* (non-Javadoc)
     * @see org.datanucleus.store.rdbms.sql.method.SQLMethod#getExpression(org.datanucleus.store.rdbms.sql.expression.SQLExpression, java.util.List)
     */
public SQLExpression getExpression(SQLStatement stmt, SQLExpression expr, List<SQLExpression> args) {
    if (args == null || args.size() == 0 || args.size() > 2) {
        throw new NucleusException(Localiser.msg("060003", "endsWith", "StringExpression", 0, "StringExpression/CharacterExpression/ParameterLiteral"));
    }
    SQLExpression substrExpr = args.get(0);
    if (!(substrExpr instanceof StringExpression) && !(substrExpr instanceof CharacterExpression) && !(substrExpr instanceof ParameterLiteral)) {
        throw new NucleusException(Localiser.msg("060003", "endsWith", "StringExpression", 0, "StringExpression/CharacterExpression/ParameterLiteral"));
    }
    if (args.size() > 1) {
        // TODO Use numExpr in a SUBSTRING
        if (substrExpr.isParameter()) {
            // Any pattern expression cannot be a parameter here
            SQLLiteral substrLit = (SQLLiteral) substrExpr;
            stmt.getQueryGenerator().useParameterExpressionAsLiteral(substrLit);
            if (substrLit.getValue() == null) {
                return new BooleanExpression(expr, Expression.OP_LIKE, ExpressionUtils.getEscapedPatternExpression(substrExpr));
            }
        }
        SQLExpression likeSubstrExpr = new StringLiteral(stmt, expr.getJavaTypeMapping(), '%', null);
        return new BooleanExpression(expr, Expression.OP_LIKE, likeSubstrExpr.add(ExpressionUtils.getEscapedPatternExpression(substrExpr)));
    }
    // Create a new StringExpression and manually update its SQL
    if (substrExpr.isParameter()) {
        // Any pattern expression cannot be a parameter here
        SQLLiteral substrLit = (SQLLiteral) substrExpr;
        stmt.getQueryGenerator().useParameterExpressionAsLiteral(substrLit);
        if (substrLit.getValue() == null) {
            return new BooleanExpression(expr, Expression.OP_LIKE, ExpressionUtils.getEscapedPatternExpression(substrExpr));
        }
    }
    SQLExpression likeSubstrExpr = new StringLiteral(stmt, expr.getJavaTypeMapping(), '%', null);
    return new BooleanExpression(expr, Expression.OP_LIKE, likeSubstrExpr.add(ExpressionUtils.getEscapedPatternExpression(substrExpr)));
}
Also used : BooleanExpression(org.datanucleus.store.rdbms.sql.expression.BooleanExpression) ParameterLiteral(org.datanucleus.store.rdbms.sql.expression.ParameterLiteral) SQLExpression(org.datanucleus.store.rdbms.sql.expression.SQLExpression) StringLiteral(org.datanucleus.store.rdbms.sql.expression.StringLiteral) StringExpression(org.datanucleus.store.rdbms.sql.expression.StringExpression) SQLLiteral(org.datanucleus.store.rdbms.sql.expression.SQLLiteral) NucleusException(org.datanucleus.exceptions.NucleusException) CharacterExpression(org.datanucleus.store.rdbms.sql.expression.CharacterExpression)

Example 74 with SQLExpression

use of org.datanucleus.store.rdbms.sql.expression.SQLExpression in project datanucleus-rdbms by datanucleus.

the class StringIndexOf2Method method getExpression.

/* (non-Javadoc)
     * @see org.datanucleus.store.rdbms.sql.method.SQLMethod#getExpression(org.datanucleus.store.rdbms.sql.expression.SQLExpression, java.util.List)
     */
public SQLExpression getExpression(SQLStatement stmt, SQLExpression expr, List<SQLExpression> args) {
    if (args == null || args.size() == 0 || args.size() > 2) {
        throw new NucleusException(Localiser.msg("060003", "indexOf", "StringExpression", 0, "StringExpression/CharacterExpression/ParameterLiteral"));
    }
    // {stringExpr}.indexOf(strExpr1 [,numExpr2])
    SQLExpression substrExpr = args.get(0);
    if (!(substrExpr instanceof StringExpression) && !(substrExpr instanceof CharacterExpression) && !(substrExpr instanceof ParameterLiteral)) {
        throw new NucleusException(Localiser.msg("060003", "indexOf", "StringExpression", 0, "StringExpression/CharacterExpression/ParameterLiteral"));
    }
    SQLExpression one = ExpressionUtils.getLiteralForOne(stmt);
    ArrayList funcArgs = new ArrayList();
    funcArgs.add(expr);
    funcArgs.add(substrExpr);
    if (args.size() == 2) {
        SQLExpression fromExpr = args.get(1);
        if (!(fromExpr instanceof NumericExpression)) {
            throw new NucleusException(Localiser.msg("060003", "indexOf", "StringExpression", 1, "NumericExpression"));
        }
        funcArgs.add(fromExpr.add(one));
    }
    NumericExpression locateExpr = new NumericExpression(stmt, stmt.getSQLExpressionFactory().getMappingForType(int.class), "INSTR", funcArgs);
    return new NumericExpression(locateExpr, Expression.OP_SUB, one).encloseInParentheses();
}
Also used : ParameterLiteral(org.datanucleus.store.rdbms.sql.expression.ParameterLiteral) SQLExpression(org.datanucleus.store.rdbms.sql.expression.SQLExpression) StringExpression(org.datanucleus.store.rdbms.sql.expression.StringExpression) ArrayList(java.util.ArrayList) NumericExpression(org.datanucleus.store.rdbms.sql.expression.NumericExpression) NucleusException(org.datanucleus.exceptions.NucleusException) CharacterExpression(org.datanucleus.store.rdbms.sql.expression.CharacterExpression)

Example 75 with SQLExpression

use of org.datanucleus.store.rdbms.sql.expression.SQLExpression in project datanucleus-rdbms by datanucleus.

the class StringIndexOf3Method method getExpression.

/* (non-Javadoc)
     * @see org.datanucleus.store.rdbms.sql.method.SQLMethod#getExpression(org.datanucleus.store.rdbms.sql.expression.SQLExpression, java.util.List)
     */
public SQLExpression getExpression(SQLStatement stmt, SQLExpression expr, List<SQLExpression> args) {
    if (args == null || args.size() == 0 || args.size() > 2) {
        throw new NucleusException(Localiser.msg("060003", "indexOf", "StringExpression", 0, "StringExpression/CharacterExpression/ParameterLiteral"));
    }
    // {stringExpr}.indexOf(strExpr1 [,numExpr2])
    SQLExpression one = ExpressionUtils.getLiteralForOne(stmt);
    ArrayList funcArgs = new ArrayList();
    funcArgs.add(expr);
    List funcArgs2 = new ArrayList();
    SQLExpression substrExpr = args.get(0);
    if (!(substrExpr instanceof StringExpression) && !(substrExpr instanceof CharacterExpression) && !(substrExpr instanceof ParameterLiteral)) {
        throw new NucleusException(Localiser.msg("060003", "indexOf", "StringExpression", 0, "StringExpression/CharacterExpression/ParameterLiteral"));
    }
    funcArgs2.add(substrExpr);
    List types = new ArrayList();
    // max 4000 according DB2 docs
    types.add("VARCHAR(4000)");
    funcArgs.add(new StringExpression(stmt, stmt.getSQLExpressionFactory().getMappingForType(String.class, true), "CAST", funcArgs2, types));
    if (args.size() == 2) {
        SQLExpression fromExpr = args.get(1);
        if (!(fromExpr instanceof NumericExpression)) {
            throw new NucleusException(Localiser.msg("060003", "indexOf", "StringExpression", 1, "NumericExpression"));
        }
        types = new ArrayList();
        types.add("BIGINT");
        List funcArgs3 = new ArrayList();
        funcArgs3.add(new NumericExpression(fromExpr, Expression.OP_ADD, one));
        // Add 1 to the passed in value so that it is of origin 1 to be compatible with LOCATE
        // Make sure argument is typed as BIGINT
        funcArgs.add(new NumericExpression(stmt, stmt.getSQLExpressionFactory().getMappingForType(int.class, true), "CAST", funcArgs3, types));
    }
    NumericExpression locateExpr = new NumericExpression(stmt, stmt.getSQLExpressionFactory().getMappingForType(int.class, true), "LOCATE", funcArgs);
    // Subtract 1 from the result of LOCATE to be consistent with Java strings
    return new NumericExpression(locateExpr, Expression.OP_SUB, one).encloseInParentheses();
}
Also used : ParameterLiteral(org.datanucleus.store.rdbms.sql.expression.ParameterLiteral) SQLExpression(org.datanucleus.store.rdbms.sql.expression.SQLExpression) StringExpression(org.datanucleus.store.rdbms.sql.expression.StringExpression) ArrayList(java.util.ArrayList) NumericExpression(org.datanucleus.store.rdbms.sql.expression.NumericExpression) List(java.util.List) ArrayList(java.util.ArrayList) NucleusException(org.datanucleus.exceptions.NucleusException) CharacterExpression(org.datanucleus.store.rdbms.sql.expression.CharacterExpression)

Aggregations

SQLExpression (org.datanucleus.store.rdbms.sql.expression.SQLExpression)199 SQLExpressionFactory (org.datanucleus.store.rdbms.sql.expression.SQLExpressionFactory)98 JavaTypeMapping (org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping)95 ArrayList (java.util.ArrayList)75 NumericExpression (org.datanucleus.store.rdbms.sql.expression.NumericExpression)74 NucleusException (org.datanucleus.exceptions.NucleusException)63 RDBMSStoreManager (org.datanucleus.store.rdbms.RDBMSStoreManager)56 DatastoreClass (org.datanucleus.store.rdbms.table.DatastoreClass)47 NucleusUserException (org.datanucleus.exceptions.NucleusUserException)44 StringExpression (org.datanucleus.store.rdbms.sql.expression.StringExpression)41 BooleanExpression (org.datanucleus.store.rdbms.sql.expression.BooleanExpression)40 SelectStatement (org.datanucleus.store.rdbms.sql.SelectStatement)35 ClassLoaderResolver (org.datanucleus.ClassLoaderResolver)34 AbstractMemberMetaData (org.datanucleus.metadata.AbstractMemberMetaData)34 SQLTable (org.datanucleus.store.rdbms.sql.SQLTable)34 UnboundExpression (org.datanucleus.store.rdbms.sql.expression.UnboundExpression)31 SQLLiteral (org.datanucleus.store.rdbms.sql.expression.SQLLiteral)29 NullLiteral (org.datanucleus.store.rdbms.sql.expression.NullLiteral)28 ParameterLiteral (org.datanucleus.store.rdbms.sql.expression.ParameterLiteral)28 AbstractClassMetaData (org.datanucleus.metadata.AbstractClassMetaData)25